There is a comforting fiction at the heart of much contemporary strategic thinking: conventional military capabilities can substitute for nuclear deterrence without requiring the same political will. It is a neat idea—reassuring, technologically optimistic, and politically convenient. It is also dangerously wrong.

Deterrence does not reside in platforms, precision, or posture. It resides in belief—specifically, the adversary’s belief that you are both capable of inflicting costs and willing to do so. Strip away that second element, and deterrence collapses into theater.

This is the central problem confronting Australia and its allies as they navigate a rapidly shifting Indo-Pacific security environment. As nuclear risks grow, particularly with China’s expanding arsenal, there has been a noticeable intellectual pivot toward elevating conventional capabilities as a more “usable,” credible, and politically palatable form of deterrence. Long-range strike, autonomous systems, undersea warfare, and advanced ISR are all presented as tools that can impose meaningful costs without crossing the nuclear threshold.

However, this argument only holds if those tools are used. Too often, the debate stops at capability acquisition. Billions are spent, platforms are announced, doctrines are drafted. Yet, there is a conspicuous silence when it comes to the harder question: under what circumstances would Australia employ these capabilities in anger? What thresholds trigger their use? What risks are we prepared to accept in doing so?

Without clear answers, the signal sent to adversaries is not strength, but hesitation. Consider the logic from the perspective of a competitor. If Australia invests heavily in long-range strike but avoids articulating when it would employ it, an adversary may conclude that those capabilities are politically constrained. If grey-zone coercion, such as the deployment of sea mines, harassment of maritime assets, or interference with undersea infrastructure, does not elicit a forceful response, then the lesson learned is not deterrence, but permissiveness.

In this sense, ambiguity is not always stabilizing. It can just as easily invite probing. The uncomfortable reality is that conventional deterrence demands a level of resolve that many policymakers are reluctant to acknowledge. Unlike nuclear weapons, whose very horror lends them a paradoxical clarity, conventional forces sit in a murkier space. They are more usable, but precisely for that reason, credibility hinges on demonstrated willingness.

A missile that will is restricted from use is not a deterrent. A submarine that will not be deployed into contested waters does not shape adversary behavior. A cyber capability that remains permanently in reserve does not impose costs. Deterrence, in the conventional domain, is performative. It must be signaled, exercised, and at times demonstrated.

This does not mean recklessness or a rush to escalation. It means recognizing that deterrence is not cost-free. If the objective is to prevent adversary action, then one must be prepared to act before the situation becomes intolerable. Waiting until costs are imposed on you, economically, militarily, or politically undermines the very logic of deterrence. This is where much of the current discourse falls short. There is a tendency to treat conventional capabilities as inherently stabilizing, as though their mere existence alters adversary calculations. But capabilities without credible intent are inert. Worse, they can create a false sense of security, masking the erosion of deterrence beneath a veneer of preparedness.

The challenge is particularly acute for middle powers like Australia, which rely heavily on alliances and extended deterrence. As questions grow around the credibility of U.S. nuclear guarantees, especially in a more contested and multipolar environment, there is an understandable desire to bolster national self-reliance through conventional means. This is a sensible objective. But it cannot be achieved through hardware alone.

If conventional forces are to serve as a substitute or even a supplement to nuclear deterrence, then they must be embedded within a clear framework of political resolve. This requires more than capability development. It requires declaratory policy, strategic signaling, and a willingness to accept escalation risks.

For example, if the laying of sea mines in Australian waters is deemed unacceptable, then that must be stated clearly and backed by a credible commitment to respond with force if necessary. Anything less invites incremental encroachment. Over time, such encroachment normalizes behaviors that would once have been considered intolerable.

History offers ample evidence of this dynamic. Deterrence erodes not in dramatic moments, but through a series of small, unchallenged actions that cumulatively shift the baseline of what is acceptable. By the time a clear red line is crossed, it is often too late as the adversary has already recalibrated expectations.

The solution is not to abandon conventional deterrence, but to take it seriously. This means confronting uncomfortable questions. Are we prepared to use long-range strike capabilities against an adversary’s military assets in the initial stages of a crisis? Would we target grey-zone actors operating below the threshold of armed conflict? How do we signal our intentions without triggering the very escalation we seek to avoid? There are no easy answers, but avoiding the questions altogether is not a strategy, it is an abdication.

Ultimately, deterrence is about shaping perceptions. It is about convincing an adversary that the costs of action will outweigh the benefits. This cannot be achieved through ambiguity alone, nor through capability acquisition in isolation. It requires a coherent integration of means, messaging, and above all else, will.

If policymakers are unwilling to countenance the use of conventional force, then they should be honest about the implications. In such a scenario, conventional capabilities do not replace nuclear deterrence; they merely decorate its absence.

The risk is not just strategic failure, but strategic surprise. An adversary that perceives a gap between capability and intent will exploit it; once that perception is formed, it is exceedingly difficult to reverse.

Deterrence, in the end, is a test of credibility and resolve. It is not measured by what you possess, but by what an adversary believes you will do. In strategic competition, credibility is not claimed; it is proven and without resolve, deterrence is nothing at all.

Natalie Treloar is the Australian Company Director of Alpha-India Consultancy, a Senior Fellow at the Indo-Pacific Studies Center (IPSC), a Senior Analyst at the National Institute for Deterrence Studies (NIDS), and a member of the Open Nuclear Network. Views expressed in this article are the author’s own.

Deterrence Without Resolve Is No Deterrence at All was originally published on Global Security Review.

The ongoing conflict involving Iran, the United States, and Israel has produced one of the most significant case studies in the evolution of contemporary warfare. Iran, a state that lacks a competitive air force and possesses limited naval power, has demonstrated that ballistic missiles, cruise missiles, and unmanned aerial systems can offset some conventional disadvantages and impose serious costs on technologically superior adversaries. This development is not confined to the battlefield. It represents a doctrinal shift with lasting implications for American deterrence strategy, allied defense planning, and the long-term viability of current U.S. force structures. Understanding what Iran has and has not achieved is essential for making sound policy going forward.

The Cost-Exchange Problem 

At the operational level, Iran’s most consequential contribution has been exposing a structural vulnerability in layered air defense: the cost-exchange dilemma. Systems such as Patriot, THAAD, and Iron Dome were engineered to intercept high-value ballistic and cruise missile threats. When deployed against coordinated waves of low-cost drones and short-range missiles, these systems are forced to expend interceptors valued at hundreds of thousands or millions of dollars per shot against threats that cost a fraction of that amount. The arithmetic is unsustainable at scale. As analysts at the Center for Strategic and International Studies have noted, saturation attacks can exhaust defensive inventories faster than replenishment is possible, creating windows of vulnerability that adversaries are quick to exploit. For the United States, this is not merely a technical problem, it is a strategic one that requires urgent attention in both procurement and doctrine.

The development of the Golden Dome missile defense architecture and expanded investment in directed energy and electronic warfare systems reflect growing official awareness that current interception models are not cost-competitive. These are necessary steps. However, technology alone cannot resolve a dilemma that is fundamentally about the economics of offense versus defense. Adversaries will adapt their tactics faster than procurement cycles can respond unless the U.S. also changes the strategic logic driving their calculations.

Attrition Without Decision: The Limits of the Iranian Model

The Iranian approach has imposed genuine costs on its adversaries, but it has not produced decisive military outcomes. This distinction is critical. Iran’s missile and drone campaigns have disrupted logistics, strained defensive inventories, and created operational uncertainty. They have not, however, defeated U.S. or Israeli military power, seized or held territory, or forced a negotiated settlement on Iranian terms. The model is one of strategic attrition, not strategic victory. Survivability and persistence are not equivalent to effectiveness, and the broader narrative of a drone revolution rendering conventional military power obsolete requires significant qualification.

The claim that air superiority is no longer a necessary condition for strategic effectiveness also warrants scrutiny. Air superiority remains essential for intelligence, surveillance, and reconnaissance; for close air support of ground operations; and for denying adversaries freedom of movement. What Iran’s campaign demonstrates is that a state without air superiority can still impose costs and delay adversary operations—not that air power has been rendered irrelevant. The bar for what air superiority can guarantee has been raised. Its strategic value, however, has not disappeared. Policymakers and analysts should resist the temptation to draw sweeping conclusions from a conflict that remains ongoing and whose full operational record is still emerging.

Implications for American Deterrence

The proliferation of precision strike capabilities across state and non-state actors undermines the assumption that technological overmatch alone is sufficient to deter conflict. When adversaries can field asymmetric capabilities that challenge U.S. and allied defenses at an acceptable cost to themselves, deterrence by denial becomes increasingly difficult to guarantee. The U.S. must prioritize cost-effective interception technologies, particularly directed energy weapons, that can neutralize mass drone and missile attacks without depleting high-value interceptor stocks. This is a resource allocation problem as much as it is an engineering one, and it demands serious engagement at the budgetary and strategic planning levels.

The Iranian model is also exportable, and this may prove to be its most consequential long-term dimension. States with limited defense budgets that are aligned with China or Russia can observe the operational lessons from this conflict and apply them in their own regional contexts. The proliferation of domestically produced or externally transferred missile and drone capabilities across the Middle East, South Asia, and the Indo-Pacific represents a compounding deterrence challenge. American extended deterrence commitments to allies in these regions will become harder to sustain if the cost-exchange problem is not structurally resolved. As Defense News reported, the proliferation of drone technology is already forcing militaries worldwide to reconsider their approach to air and missile defense.

There is also a crisis stability dimension that deserves serious attention. Rapid, sustained missile and drone strikes compress decision-making timelines and increase pressure for early, and potentially disproportionate, responses. In a multipolar environment where multiple actors possess similar strike capabilities, the risk of miscalculation is elevated. The U.S. should pursue updated arms control frameworks and diplomatic mechanisms to manage the proliferation of these systems alongside its technical and procurement investments. Deterrence cannot be reduced to hardware alone.

Conclusion

Iran’s missile and drone campaign has not rewritten the principles of warfare, but it has exposed critical assumptions underpinning American deterrence in ways that cannot be ignored. Distributed, low-cost, high-impact systems are now accessible to a wider range of actors and the gap between offensive capability and defensive cost is widening. The United States requires a

deterrence posture that integrates cost-effective defense, credible offensive options, active non-proliferation diplomacy, and sustained alliance management. Meeting this challenge demands strategic adaptation across doctrine, procurement, and diplomacy, not simply an incremental increase in interceptor production.

Dr. Tahir Mahmood Azad is currently a research scholar at the Department of Politics & International Relations, the University of Reading, UK. Views expressed in this article are the author’s own.

Iran’s Missile-Drone Campaign and Its Implications for the United States’ Deterrence was originally published on Global Security Review.

The Indo-Pacific is rapidly emerging as the central theatre of global strategic competition. Unlike the Cold War in Europe, where nuclear deterrence involved two superpowers across relatively defined front lines, the Indo-Pacific presents a far more complex landscape. The region spans vast maritime distances, multiple potential flashpoints, and several nuclear-armed adversaries. North Korea continues to expand its nuclear and missile programs, China is rapidly increasing both the size and sophistication of its arsenal, and Russia maintains nuclear capabilities alongside a growing strategic presence in the Pacific.

In such an environment, the traditional model of extended deterrence, where the United States alone provides nuclear protection to its allies, may not be sufficient to address the scale and diversity of contingencies across the region. A new framework may be required, an Indo-Pacific nuclear alliance built on shared responsibility, distributed deterrence, and sovereign nuclear capabilities among key allies.

Complicating the adversary: The logic of distributed deterrence

At the core of such an alliance would ideally be sovereign nuclear deterrents for Australia, Japan, and South Korea. This model would resemble the role of the United Kingdom and France within NATO. Both maintain independent nuclear forces and sovereign decision-making, while contributing to the alliance’s broader deterrence posture.

Applying this model to the Indo-Pacific would significantly strengthen deterrence. If Australia, Japan, and South Korea each possessed sovereign nuclear capabilities, adversaries would face a far more complex strategic calculus. Rather than confronting a single decision-maker in Washington, they would need to account for multiple independent governments capable of responding to aggression.

This distributed architecture would complicate adversary planning and raise escalation risks. Any state considering coercion or military action against an Indo-Pacific democracy would have to account not only for the United States, but for several nuclear-capable regional powers with distinct strategic interests and decision-making processes.

Geography reinforces this logic. The Indo-Pacific spans an immense area, from the Korean Peninsula and Taiwan Strait to the South China Sea and the Indian Ocean approaches to Australia. The sheer distance between these theatres makes a purely centralized deterrence model increasingly difficult to sustain.

Flexible Deterrence through forward deployment and hosting

An Indo-Pacific nuclear alliance would therefore require forward deployment and hosting arrangements across the region. Australia, Japan, and South Korea could host a range of nuclear capabilities designed to provide flexible deterrent options across multiple contingencies.

These could include submarine-launched ballistic missiles (SLBM-N) on Ohio- and Columbia-class submarines; nuclear sea-launched cruise missiles (SLCM-N) on Virginia- and AUKUS-class submarines; B83 gravity bombs for platforms such as the B-2 Spirit and B-21 Raider, alongside the rearming of the B-52 Stratofortress and B-1B Lancer; B61 nuclear bombs for the B61 nuclear bombs for aircraft including the B-2, B-21, B-52, and F-35A Lightning II; and Long-Range Stand-Off (LRSO-N) nuclear cruise missiles for the B-21 and B-52. In addition, nuclear warheads could be assigned to land-based, mobile intercontinental ballistic missile (ICBM) launchers.

By dispersing these capabilities across multiple allied territories, the alliance would establish a more resilient and survivable deterrent posture. It would be far more difficult for an adversary to neutralize. Hosting arrangements would also strengthen operational integration among allied forces. As in NATO’s nuclear-sharing model, partner nations could contribute dual-capable platforms capable of delivering nuclear payloads in extreme circumstances.

Australia, Japan, and South Korea could commit to dual-capable submarine (DCS), aircraft (DCA), and land-based missile launcher (DCL) missions within the alliance structure. Dual-capable aircraft would provide visible and flexible deterrence signaling. Submarine-based systems would ensure a survivable second-strike capability across the region’s vast maritime domain. While land-based mobile missile launchers would add a credible and responsive ground-based deterrent, reinforcing the threat of rapid retaliation.

Such arrangements would distribute both responsibility and capability among Indo-Pacific allies, reducing the burden on the United States while strengthening the credibility of deterrence. It would transform the region from one dependent on a single guarantor into a networked system of mutually reinforcing nuclear deterrents.

Why the Philippines should revisit extended nuclear deterrence

An Indo-Pacific nuclear alliance would also require a reassessment of the policies of other regional partners. One notable example is the Philippines. For decades, the Philippines benefited from extended nuclear deterrence under its alliance with the United States. However, that relationship was complicated when the Philippines ratified the Treaty on the Prohibition of Nuclear Weapons (TPNW) in February 2021. By joining a treaty that prohibits the development, possession, and use—or threat of use—of nuclear weapons, the Philippines has distanced itself from reliance on the US nuclear umbrella.
This decision sits uneasily alongside the increasingly contested security environment in the South China Sea. If Manila wishes to strengthen its security relationship with the United States and regional partners, it may need to reconsider its position. Reintegrating into the framework of US extended nuclear deterrence would provide a stronger strategic backstop against coercion or aggression in its maritime domain.

Restoring strategic stability through credible, distributed deterrence architecture

Ultimately, the purpose of an Indo-Pacific nuclear alliance would not be to encourage proliferation for its own sake. Rather, it would be to restore strategic stability in a region where the balance of power is shifting rapidly.

Deterrence works best when it is credible, distributed, and resilient. In a region as vast and strategically complex as the Indo-Pacific, relying on a single nuclear guarantor may no longer provide the level of deterrence required to prevent conflict.

By adopting a model like the United Kingdom and France within NATO, where allied states maintain sovereign nuclear forces while contributing to a broader alliance deterrence posture, Australia, Japan, and South Korea could build a more stable and credible strategic architecture.

Such an arrangement would ensure that any adversary contemplating aggression in the Indo-Pacific would face not one nuclear power, but several, each capable of defending its sovereignty and contributing to the collective security of the region.

Natalie Treloar is the Australian Company Director of Alpha-India Consultancy, a Senior Fellow at the Indo-Pacific Studies Center (IPSC), a Senior Analyst at the National Institute for Deterrence Studies (NIDS), and a member of the Open Nuclear Network. Views expressed in this article are the author’s own.

Beyond a Pacific Defense Pact 4: Blueprint for an Indo-Pacific Nuclear Alliance was originally published on Global Security Review.

Published: April 2, 2026

On December 23, 2025, the Pentagon released its annual 2025 China Military Power Report to Congress—a reminder that America is still trying to deter tomorrow with yesterday’s force. The report assesses China’s stockpile stayed in the low 600s through 2024 but remains on track to have over 1,000 nuclear warheads by 2030, while Russia continues to brandish tactical (non-strategic) nuclear weapons to shield conventional aggression. Yet U.S. deterrence planning still assumes that sufficiency against one peer will scale to two.

Within the bomber community, personnel are trained to operate and make decisions amid uncertainty. Deterrence cannot rely on idealized scenarios. Washington, however, continues to plan and budget as if deterring one peer at a time is adequate to maintain peace. Since the Nixon administration elevated “strategic sufficiency,” the U.S. has preferred a survivable second-strike posture over matching adversary numbers, even as U.S. Strategic Command (STRATCOM) Commander Adm. Charles Richard testified in 2020, “We do not seek parity.”

That posture of sufficiency made sense when the U.S. faced one major nuclear superpower at a time. It makes less sense when the U.S. must deter two nuclear peers, potentially in overlapping crises while also accounting for a third in North Korea. The 2023 Congressional Commission on the Strategic Posture of the United States warned the nation is “ill-prepared” for a future where China and Russia can coordinate, or opportunistically exploit dual crises.

The issue is not that U.S. modernization appears timid on paper. Instead, it is optimized for a single adversary. A survivable second strike against one major nuclear opponent is not enough as a credible deterrent against two, especially if one adversary believes the other will absorb U.S. attention. Deterrence developed for one enemy breaks down when facing multiple opponents.

Modernization is also colliding with the same budget dysfunction that has battered conventional readiness for years. Continuing resolutions and shutdown threats do not just delay programs; they advertise doubt about U.S. resolve. In deterrence, doubt about political will can be just as harmful as uncertainty about capability.

Enter the logic of reciprocity. The White House’s February 2025 memorandum on Reciprocal Trade and Tariffs argues that reciprocal measures are not punishment; they are a way to restore balance when competitors exploit unequal terms. Reciprocity is a framework for fairness, and fairness is what makes commitments believable.

Deterrence needs a similar framework. Strategic fairness demands a posture calibrated to the combined capabilities of the adversaries the U.S. must deter, not an accounting trick that treats them sequentially. Dynamic Parity offers that calibration: match the aggregate nuclear threat, go no further, and use that ceiling to avoid both arms racing and strategic vulnerability.

Dynamic Parity is “parity without superiority.” It rebuffs a race for numerical dominance, but it also rejects minimalist postures that assume an adversary will politely wait its turn. It restores equilibrium as the foundation of deterrence in a multipolar era.

Skeptics argue that “parity” invites an arms race or abandons arms control. Dynamic Parity does the opposite: it clearly separates what is required from what is excess, with the numerical arsenals determined by the adversary and then matched by America. This establishes a disciplined standard for force planning. That discipline also enhances the U.S. position in future risk-reduction negotiations by making the baseline requirements explicit instead of improvised during a crisis.

Strategy, however, is not self-executing. If Dynamic Parity is the strategic logic, Congress needs a budgeting structure that can deliver it. The National Sea-Based Deterrence Fund provided the Columbia-class ballistic missile submarine program with authorities that support long-lead procurement and multiyear contracting.

Congress should implement that approach throughout the nuclear enterprise via a National Strategic Deterrence Fund. The goal is not to escape oversight; it is to safeguard the core of deterrence from annual budget brinkmanship and start-stop inefficiency. If the fund is protected as non-discretionary spending with multiyear authority, modernization timelines become actual plans rather than mere hopes.

Here is what that would look like in practice:

• Direct the next Nuclear Posture Review to adopt a concurrency standard and use Dynamic Parity as the force-planning logic.
• Create a National Strategic Deterrence Fund with multi-year and long-lead authorities across delivery systems, warheads, infrastructure, and nuclear command, control, and communications.
• Require annual execution reporting, i.e., schedule, industrial capacity, and funding stability, so Congress can measure delivery and not intent.

This is about credibility, not bookkeeping. The State Department’s International Security Advisory Board warned in 2023 that extended deterrence hinges on the perception of sustained capability and resolve. Allies and adversaries do not parse budget documents; they watch whether the U.S. executes what it promises.

Execution is the signal. Russia’s 2024 Fundamentals of Nuclear Deterrence establishes clear redlines for potential nuclear use while deliberately preserving threshold ambiguity. China is building the force structure for nuclear coercion alongside conventional power projection. If Washington cannot modernize on schedule and at scale, because budgets lurch from continuing resolution to shutdown threat, adversaries will read that as strategic hesitation, not fiscal noise.

Reciprocity works only when it is enforced. In nuclear deterrence, enforcement means a posture designed for concurrency and a budget mechanism that delivers it. Dynamic Parity provides the standard; a National Strategic Deterrence Fund provides the spine. In a multipolar nuclear world, balance against combined nuclear threats is not a theory, it is the price of credibility.

Joseph H. Lyons is a career bomber aviator and a doctoral candidate at Missouri State University’s School of Defense and Strategic Studies. The opinions, conclusions, and recommendations expressed or implied within are solely those of the author and do not necessarily reflect the views of the United States Air Force, the Department of Defense, any other U.S. government agency, or Missouri State University.

Reciprocity in Deterrence, Not Just Trade was originally published on Global Security Review.

Strategic competition in the Indo-Pacific increasingly occurs in the grey zone, the space between routine statecraft and open armed conflict. China, North Korea, Russia, and Iran employ a range of coercive tactics designed to alter the strategic environment without triggering a conventional military response. These activities include cyber operations, maritime harassment, disinformation campaigns, economic coercion, and limited military provocations. Because these actions remain deliberately below the threshold of war, they often exploit the reluctance of states to respond with force. As grey zone competition intensifies, the question confronting policymakers is not only how to deter such activities, but also how to ensure that responses to them are credible. In this context, a nuclear alliance could serve as the ultimate strategic backstop for military responses to persistent grey zone coercion.

Grey zone strategies rely heavily on ambiguity and escalation management. The states that employ these tactics understand that their adversaries—particularly democratic states—are cautious about escalating disputes into major military confrontations. By operating just below the threshold of armed conflict, grey zone actors seek to gradually erode the strategic position of their opponents while avoiding a decisive response. Maritime coercion in disputed waters, persistent airspace incursions, cyber intrusions, and limited military demonstrations all serve this purpose. Over time, these actions can reshape the operational environment, undermine alliances, and weaken the credibility of deterrence.

The difficulty lies in crafting responses that are both proportionate and credible. Conventional military responses to grey zone activities risk escalating a crisis if they are perceived as excessive, yet insufficient responses can embolden further coercion. This dilemma has led analysts to argue that deterrence in the grey zone requires a layered approach that combines political, economic, and military tools. However, even robust conventional responses may prove insufficient if adversaries believe that escalation dominance ultimately rests in their favor. It is in this context that nuclear deterrence retains enduring strategic relevance.

A nuclear alliance would not be designed to deter grey zone activities directly. Nuclear weapons are instruments of last resort intended to deter existential threats and large-scale conventional aggression. Nevertheless, the presence of a credible nuclear backstop fundamentally shapes the broader strategic environment in which grey zone competition occurs. By reinforcing the credibility of allied military responses, nuclear deterrence can prevent grey zone crises from escalating into major wars while simultaneously discouraging adversaries from testing the limits of conventional deterrence.

In practical terms, a nuclear alliance would strengthen escalation management in the Indo-Pacific. If regional states believed that their security rested on a collective nuclear deterrent, they would be better positioned to respond firmly to grey zone provocations. Maritime patrols, cyber countermeasures, and limited military deployments could be undertaken with greater confidence that adversaries would hesitate to escalate beyond the conventional level. In this sense, nuclear deterrence functions as a strategic umbrella under which lower-level military responses can occur without triggering uncontrolled escalation.

The experience of the Cold War offers a useful historical precedent. During that period, the North Atlantic Treaty Organization relied on nuclear deterrence to prevent large-scale aggression by the Soviet Union while simultaneously engaging in conventional competition across multiple domains. Although grey zone tactics—including espionage, proxy conflicts, and political interference—were common, the presence of a credible nuclear deterrent helped ensure that such competition did not escalate into direct war between nuclear powers. A similar logic could apply in the Indo-Pacific today.

In the contemporary regional context, a nuclear alliance could involve close coordination among the United States and key Indo-Pacific partners. Such an arrangement would not necessarily require the proliferation of nuclear weapons. Instead, it could mirror existing extended deterrence frameworks in which nuclear-armed states provide security guarantees to non-nuclear allies while maintaining operational control over nuclear forces. Through mechanisms such as joint planning, strategic consultation, and integrated command structures, allied states could strengthen the credibility of collective deterrence without undermining existing non-proliferation commitments.

Importantly, a nuclear backstop would also reinforce political resolve among allied states. Grey zone strategies often aim to exploit divisions within alliances by testing whether partners will respond collectively to incremental coercion. If adversaries perceive hesitation or disunity, they may conclude that the risks of escalation are manageable. A formal nuclear alliance could signal a high level of strategic commitment among participating states, thereby increasing the perceived costs of continued grey zone pressure.

Critics may argue that linking nuclear deterrence to grey zone competition risks lowering the nuclear threshold or introducing unnecessary escalation dynamics. These concerns highlight the importance of clearly defining the role of nuclear weapons within a broader deterrence framework. The objective would not be to threaten nuclear retaliation for minor provocations, but rather to ensure that adversaries understand that attempts to escalate beyond the grey zone could encounter a unified and credible deterrent response. In this sense, nuclear deterrence functions as a stabilizing force that sets clear limits on how far coercion can be pushed.

As the Indo-Pacific becomes the central arena of strategic competition, the persistence of grey zone tactics will continue to test existing security arrangements. States that rely solely on conventional responses may find themselves locked in a cycle of incremental coercion that gradually shifts the balance of power. By contrast, a nuclear alliance would provide a strategic foundation that reinforces the credibility of allied military responses across the escalation spectrum.

Ultimately, understanding grey zone actors and the tactics they employ is essential for effective deterrence. Yet deterrence also requires credible escalation management and the assurance that adversaries cannot exploit the space between peace and war indefinitely. In the Indo-Pacific, a carefully structured nuclear alliance could provide the strategic backstop necessary to ensure that responses to grey zone coercion remain both credible and effective while preventing escalation into catastrophic conflict.

Natalie Treloar is the Australian Company Director of Alpha-India Consultancy, a Senior Fellow at the Indo-Pacific Studies Center (IPSC), a Senior Analyst at the National Institute for Deterrence Studies (NIDS), and a member of the Open Nuclear Network. Views expressed in this article are the author’s own.

Beyond a Pacific Defense Pact 3: A Nuclear Alliance as the Ultimate Backstop to Grey Zone Coercion was originally published on Global Security Review.

The Indo-Pacific is entering a far more dangerous strategic era. Military modernization, grey-zone coercion, and rapid nuclear expansion are reshaping the regional balance of power. Most notably, China is undertaking a historic expansion of its nuclear arsenal, investing in silo fields, road-mobile intercontinental ballistic missiles, ballistic missile submarines, and dual-capable systems. Simultaneously, Russia’s willingness to use nuclear threats in Europe demonstrates that nuclear coercion is once again central to great-power competition.

In Washington, proposals such as Ely Ratner’s Pacific Defense Pact reflect recognition that the current security architecture is insufficient. A more formalized collective defense structure in the Indo-Pacific is necessary.

However, this is not sufficient. A conventional Pacific Defense Pact does not fully address the most dangerous level of escalation to large-scale conventional war or nuclear attack. What the region now requires is a narrowly defined Indo-Pacific nuclear alliance.

A Narrow, Explicit Purpose

This would not be a sweeping defense pact covering every maritime incident, border clash, cyber intrusion, or grey-zone coercive act. It would have a clear and carefully delimited purpose. That is to deter large-scale conventional war or nuclear attack against member states.

Its clarity would be its strength. That clarity performs a second vital function. It minimizes the risk of entrapment by ensuring member states are not dragged into escalation over actions below the threshold of war. By explicitly excluding grey-zone coercion and limited crises from its nuclear remit, the alliance would reassure leaders that only truly existential threats trigger its highest-level commitments.

Participation becomes politically sustainable and strategically credible because it avoids automatic escalation over incremental provocations. The alliance would draw a line at catastrophic strategic aggression.

The Historical Record: Why Nuclear Deterrence Matters

The case for a nuclear alliance is not theoretical. It is grounded in historical experience. During the Cold War, nuclear parity between the United States and the Soviet Union prevented direct large-scale war and nuclear attack in Europe. Despite ideological confrontation and proxy conflicts, neither side attempted a conventional war or nuclear attack on the other’s core territories. Nuclear weapons imposed restraint. They deterred not just nuclear use, but overwhelming conventional assault.

Similarly, within NATO, the presence of U.S. nuclear guarantees has prevented full-scale Russian conventional attack on Alliance territory. Moscow has tested boundaries through

hybrid tactics and coercive signaling, but it has not launched a large-scale attack on NATO soil. Nuclear deterrence at the alliance level raised the costs to an unacceptable threshold.

The 1969 Sino-Soviet border conflict further illustrates how nuclear capability constrains escalation. The Soviet Union’s nuclear superiority allowed it to signal credible threats, while China’s emerging nuclear capability and mobilization signaled resolve. Mutual fear of escalation compelled negotiation, including intervention through U.S. triangular diplomacy. Nuclear weapons shaped behaviors without being used.

The India–Pakistan experience is equally instructive. Prior to overt nuclearization, the two states fought multiple full-scale wars. Since their nuclear tests in 1998, crises have erupted, but they have remained limited. Missile strikes, cross-border skirmishes, and periods of great tension have not escalated into all-out conventional war or nuclear attack. Nuclear deterrence imposed a ceiling on the conflicts.

Contrast this with the Russia–Ukraine war. Ukraine relinquished its nuclear arsenal in the 1990s and now confronts a nuclear-armed Russia without possessing its own nuclear deterrent. The result has been a prolonged and costly conventional war of attrition. The absence of mutual nuclear deterrence has made sustained large-scale conventional war possible. By comparison, Russia has not launched a direct assault on NATO territory precisely because nuclear deterrence underwrites NATO’s collective defense.

The pattern is clear. Where credible nuclear deterrence exists between adversaries, large-scale conventional war and nuclear attack is sharply constrained or avoided. Where it does not, prolonged and devastating large-scale conventional war and nuclear attack becomes more likely.

The Indo-Pacific Strategic Gap

The Indo-Pacific currently relies on a patchwork of bilateral extended deterrence arrangements centered primarily on Washington. These remain essential, but they are increasingly strained or at risk of being fractured by China.

China’s expanding nuclear arsenal complicates escalation management. A larger and more survivable force reduces the credibility of assumptions that escalation will remain controlled or asymmetrical. Meanwhile, the region contains multiple flashpoints, including Taiwan, the South China Sea, the Korean Peninsula, and the India–China border where conventional conflict could rapidly climb the escalation ladder.

Frameworks like AUKUS and the Quad strengthen capabilities and coordination, while the proposed Pacific Defense Pact aims to guarantee that the U.S. and its allies can act in concert during crises or conflicts. But they are not structured as nuclear deterrence mechanisms. They do not institutionalize shared nuclear declaratory policy, crisis consultation at the strategic level, or joint planning for high-end escalation management. A nuclear alliance would fill that gap.

Beyond a Pacific Defense Pact

A Pacific Defense Pact, as envisioned in conventional terms, strengthens interoperability and signals unity. But without an explicit nuclear dimension, it leaves ambiguity at the highest rung of escalation. That ambiguity can invite miscalculation.

A nuclear alliance would not broaden commitments; it would sharpen them. It would: (1) establish shared declaratory policy on deterrence of large-scale war and nuclear attack, (2) institutionalize strategic consultation mechanisms during crises, (3) coordinate planning to ensure credible escalation management, and (4) reinforce extended deterrence while discouraging independent nuclear proliferation.

Importantly, such an alliance need not require additional states to acquire nuclear weapons. Like NATO, it could rely on extended deterrence commitments and nuclear-sharing with structured burden-sharing and planning arrangements. Nuclear forces may remain nationally controlled, but alliance cohesion amplifies deterrent credibility. 

Clarity as Stability

The objective is not confrontation. It is clarity. By defining a narrow and explicit threshold—large-scale conventional war or nuclear attack—the alliance reduces the risk of catastrophic miscalculation. It signals to potential aggressors that existential aggression will trigger unified strategic consequences.

Simultaneously, it reassures members that lower-level competition will not automatically escalate to nuclear commitments. This dual clarity strengthens deterrence at the top end and stabilizes politics at the lower end.

A Necessary Evolution

The Indo-Pacific is now the central arena of 21st-century strategic competition. Nuclear modernization is accelerating. Multi-nuclear dynamics are emerging. Escalation timelines are compressing.

History shows that nuclear weapons, and when embedded within credible alliance structures, deter catastrophic war. They prevent large-scale conventional war and nuclear attacks not because they are desirable tools of war, but because they impose unacceptable costs on those who contemplate it.

A Pacific Defense Pact is a step forward, but in the current strategic environment, it is not enough. To deter large-scale conventional war and nuclear attack in the Indo-Pacific, the region must move beyond a Pacific Defense Pact. It must build a nuclear alliance.

Natalie Treloar is the Australian Company Director of Alpha-India Consultancy, a Senior Fellow at the Indo-Pacific Studies Center (IPSC), a Senior Analyst at the National Institute for Deterrence Studies (NIDS), and a member of the Open Nuclear Network. Views expressed in this article are the author’s own.

Beyond a Pacific Defense Pact: Why the Indo-Pacific Requires a Nuclear Alliance was originally published on Global Security Review.

This pattern has direct relevance for the Indo-Pacific region. Deterrence depends not only on forward-deployed forces and advanced capabilities, but also on the sustained ability of allied military institutions to function under pressure. Long-duration crises test personnel systems, logistics governance, and civil–military coordination in ways short conflicts do not. Joint operations across multiple states rely on interoperability, shared intelligence, and coordinated command structures that may degrade under stress. Failure of these institutional mechanisms can be as decisive as battlefield defeat. The Indo-Pacific presents additional challenges, including vast maritime distances, diverse political systems among allies, and critical chokepoints such as the Taiwan Strait and South China Sea, which amplify the consequences of institutional stress.

Logistics is often the first system to degrade in prolonged conflict. Early wartime adaptation can mask structural weaknesses, but logistics networks become brittle over time. Sustained disruption, infrastructure damage, and competing civilian demands reduce flexibility. Recent high intensity conflicts demonstrate that logistics effectiveness often declines due to cumulative friction across transportation, maintenance, and energy supply chains. These vulnerabilities are particularly pronounced in maritime and air domains, where long supply lines and port dependencies create operational risks. For Indo-Pacific states, heavy reliance on maritime transport and civilian infrastructure further intensifies these challenges. Deterrence credibility therefore depends not only on stockpiles, but on whether logistics governance can function after months of sustained pressure.

Energy infrastructure resilience is intricately linked to logistics sustainability. Sustained strikes on energy systems rarely halt operations immediately, but they gradually erode institutional capacity. Power instability affects command systems, maintenance cycles, training pipelines, and civilian support networks. Over time, these disruptions degrade operational tempo and decision-making quality. Many Indo-Pacific states rely on centralized power generation, imported fuel, and dual-use infrastructure, increasing their vulnerability to prolonged disruption. Such stress would not only affect military units, but also civilian resilience, intensifying friction between defense requirements and societal tolerance. Extended deterrence relies heavily on political cohesion, making energy resilience a strategic factor. States with diversified energy networks, redundant supply routes, and hardened civilian-military interfaces are better positioned to sustain military effectiveness.

Personnel systems represent another critical late-phase vulnerability. High-intensity conflict places sustained demands on trained personnel that are difficult to replace. Initial mobilization often creates an illusion of depth, but over time training quality declines, leadership fatigue accumulates, and institutional knowledge erodes. These effects are gradual and frequently overlooked until they become operationally decisive. Demographic constraints further complicate personnel sustainability across Indo-Pacific allies, many of which face aging populations and limited mobilization pools. Prolonged conflict would force trade-offs between force quality and quantity. Effective deterrence planning requires realistic long-duration personnel strategies, including force rotation, cross-training, and preplanned personnel pipelines that preserve institutional knowledge under operational stress.

Civil–military coordination also deteriorates during prolonged crises. Early conflict phases typically produce strong political consensus and public support. Over time, however, economic strain, infrastructure damage, and social fatigue create competing priorities. Decision-making processes slow, risk tolerances shift, and coordination mechanisms weaken. These dynamics have direct deterrence implications because adversaries observe not only military deployments, but also institutional coherence. Prolonged stress that reveals political fragmentation or administrative paralysis can undermine deterrence credibility. In the Indo-Pacific, where extended deterrence relies on alliance unity and sustained commitment, maintaining institutional cohesion is strategically essential. Regular joint exercises, wargaming, and civil–military education can strengthen resilience before conflict emerges.

Technological developments and emerging threats intensify these challenges. Hypersonic weapons, autonomous systems, cyber operations, and space-based surveillance increase operational tempo and reliance on interconnected networks. Disruption in one domain can cascade across others, magnifying institutional stress. Attacks targeting space-based command-and-control or satellite navigation systems would degrade precision strike capabilities, logistics coordination, maritime awareness, and joint operational planning. Although technological superiority remains important, it cannot compensate for institutional degradation during prolonged conflict. Resilience in digital infrastructure, cybersecurity frameworks, and redundancy planning therefore represents a decisive late-phase determinant of military effectiveness.

Space and cyber capabilities are especially significant for extended deterrence. American space-based sensors, missile warning networks, and communications satellites provide critical detection and coordination advantages. However, these systems rely on both technical redundancy and organizational resilience. Sustained disruption would test alliance coordination and operational cohesion as much as physical hardware. Prolonged conflict would reveal whether allied institutions can maintain effectiveness under persistent technological and informational pressure. Cyber operations are particularly concerning because they can gradually degrade institutional functionality without provoking overt confrontation, underscoring the importance of integrated defensive architectures and rapid recovery mechanisms.

Nuclear deterrence is similarly shaped by institutional endurance. Adversaries observing strain in logistics, personnel systems, or civil–military coordination may question the credibility of extended deterrence commitments. Modernization programs that enhance survivable nuclear forces and resilient command-and-control systems remain essential, but their effectiveness depends on institutional capacity to operate under sustained stress. Endurance therefore emerges as a strategic variable equal in importance to platforms and weapons systems. Deterrence credibility is continuously tested by the ability of institutions to project capability during protracted crises.

For deterrence planners, the central lesson is clear: prolonged conflict transforms military effectiveness from a function of platforms into a function of institutions. States that plan for short, decisive engagements risk strategic failure if conflicts extend beyond expectations. The United States and its Indo-Pacific allies must rebalance deterrence planning by emphasizing late-phase resilience. Priorities should include logistics governance under disruption, energy system adaptability, personnel sustainability, durable civil–military coordination, and protection against emerging technological threats. These factors determine whether deterrence remains credible over time rather than only at crisis onset.

Prolonged conflict is not an anomaly but a plausible future condition. Strategies that overlook institutional endurance risk failure not at the outset of war, but after sustained operational pressure erodes recovery capacity and strategic credibility. Integrating late-phase considerations into readiness assessments, modernization programs, and alliance coordination is therefore essential. Ultimately, the credibility of extended deterrence rests less on platforms alone and more on the ability of military and political institutions to withstand the cumulative stress of prolonged conflict.

Andrey Koval is a defense planner working on issues of military effectiveness and long-duration conflict. The views expressed in this article are the author’s own.

Late-Phase Failure and the Erosion of Military Effectiveness in Prolonged Conflict was originally published on Global Security Review.

The term ‘diplomacy’ originates from the ancient Greek word diplōma, meaning “an object folded in two,” referring to a document granting travel or special privileges to diplomats. Statecraft is defined as the art of governing state affairs, encompassing diplomacy, economic statecraft, military strategy, and intelligence. Economic statecraft is defined as “the use of economic means to pursue foreign policy goals,” including foreign aid, trade, sanctions, tariffs, and investment to achieve foreign policy goals. While diplomacy relies on negotiation and alliances to further foreign policy, economic statecraft, on the other hand, relies on economic power to achieve foreign policy objectives.

In early human history, relations between groups were often conflictual, with armed confrontation serving as the primary means for achieving strategic advantage. Yet, even in antiquity, diplomacy emerged as a vital tool for negotiation and conflict resolution. The rivalry between the United States and China, unlike ancient rivalries, did not evolve solely due to military power; rather, it is a hybrid of trade, investment, alliances, and military strength.

China has rooted its diplomacy in trade and economics, stretching its relationships from Asia to Africa and reviving the old Silk Road that was once a symbol of China’s economic dominance. By using economic diplomacy as its foreign policy tool, China can open new markets and build alliances. Elsewhere in the Western Hemisphere, China is becoming the most important trade partner, with the likes of Argentina, Brazil, and Colombia now shifting towards China despite being traditional allies of the United States.

The United States’ current diplomacy is evolving in the use of economic statecraft as well, through sanctions, tariffs, and foreign investment based on coercion and compliance. If that can be successful in achieving the U.S. foreign policy objective and the interest of the U.S. national security, it is apparent that the strategy is limited, as it does not have global reach. While states may comply with the U.S. policy based on fear of retaliation, success from this method can be limited; as in international relations, states can balance or bandwagon. By analyzing the global politics of small states in the south, the U.S. economic statecraft and boat diplomacy may push them towards balancing towards China.

Robert J. Art and Robert Jervis, in International Politics: Enduring Concepts and Contemporary Issues, argue that “force can be used to take or to bargain. If you can take what you want, you do not need your adversary’s cooperation and do not have to bargain with him. A country may use force to seize disputed territory just as a robber may kill you to get your wallet. Most of the things people and nations want, however, cannot be taken in this way. A nation may want others to stop menacing it; it may even want others to adopt its values. Brute force alone cannot achieve these goals.”

Coercion has been a tool of U.S. economic statecraft in foreign policy for a long time. However, history shows that it has clear limitations, especially in great power rivalry. In the U.S.-Japan rivalry leading to World War II, Japan achieved early military successes, but its overextension and limited industrial base prevented long-term strategic victory. Rather than deterring Japan, U.S. sanctions intensified its aggression, illustrating again that economic pressure can provoke escalation rather than prevent it. Coercive tools such as economic sanctions and tariffs, while a game-changer, cannot alone secure a strategic victory.

For deterrent purposes, economic sanctions historically have not prevented rogue states from changing their behavior. It did not prevent North Korea from developing long-range ballistic missiles, just as it was not successful in changing Iran’s human rights behavior and nuclear ambitions. Rather than punitive deterrence, what ultimately works in Iran is deterrence by denial, as initial punitive measures did not suffice highlighting the limitations of economic statecraft in power competition. Punitive deterrence will not prevent a new power from rising, as described by Alison in Thucydides’ Trap, nor will it prevent weaker states from balancing against strong ones. It did not prevent the rise of China, and it will not prevent the rise of other future powers. What has and will make deterrence effective is the innovation of the U.S. nuclear triad, extended deterrence, and international cooperation through diplomacy.

Contemporary politics reflects the same pattern. Russia’s military power has not secured a decisive victory in Ukraine, and economic sanctions, either targeted or sectoral, have not changed Russia’s posture. As noted by the Council on Foreign Relations, “The United States began its 2022 barrage of sanctions by freezing $5 billion of the Russian central bank’s U.S. assets, an unprecedented move to prevent Moscow from using its foreign reserves to prop up the Russian ruble.” While sanctions in other sectors, such defense and energy, have been seriously targeted, the war is still ongoing. In the same vein, the U.S.–China competition and tariffs imposed on Beijing have failed to change China’s behavior as described by Global Trade Magazine, “China’s annual trade surplus passed $1 trillion, a record high, with a GDP growth remained steady at around 5%.”

It is paramount that the United States develop a hybrid strategy, combining diplomacy and other tools of statecraft to keep its leadership on the global stage, as opposed to relying on power.

While coercion and deterrence are important in great power rivalries, the current global landscape does not favor such a posture. There is a need to consider economic diplomacy as the main tool of U.S. foreign policy and economic statecraft as a second, as a future war will not be determined by military strength but by the mixture of both economic and military might.

Hafiz Ibrahim is a Ph.D. student at Virginia Tech’s School of Public and International Affairs, specializing in political economy, global security, and African-U.S. affairs. His professional experience includes serving as a Defense Trade Analyst government contractor at the U.S. Department of State, as well as working previously at Deloitte Consulting as a Sanctions Analyst. Views expressed in this article are the author’s own. 

Diplomacy in Great Power Competition and the Limits of Economic Statecraft was originally published on Global Security Review.

The return of great power competition is especially concerning in the Indo-Pacific, with the expansion of Chinese military capabilities eroding the status quo of a regional rules-based order. An evolution in Chinese strategic objectives has created a shift among American defense planners and strategists, who now see China as the primary adversary of the United States. As written within the 2022 U.S. National Defense Strategy, “The [People’s Republic of China] PRC remains our most consequential strategic competitor for the coming decades… this conclusion [is based] on the PRC’s increasingly coercive actions to reshape the Indo-Pacific region and the international system to fit its authoritarian preferences, alongside a keen awareness of the PRC’s clearly stated intentions and the rapid modernization and expansion of its military.”

In the Cold War, Western strategists and planners spent most of their intellectual capital examining the challenges posed by the Soviet Union, in particular, the deterrence challenges posed by the Soviet nuclear arsenal. Policymakers subsequently developed defensive strategies and associated concepts including extended deterrence and force posturing in Europe and the role that the American industrial, economic, and military could play. Not least among these considerations was the role of U.S. extended deterrence commitments to its allies in NATO, particularly those allies on the front lines of the Cold War stand-off in Europe.

Put simply, extended deterrence refers to the stated policy to defend a foreign ally, including the use of nuclear weapons in said defense, as part of a mutual defense treaty. Many policies supported the credibility of U.S. extended deterrence commitments in Europe, to include public statements by American presidents, the presence of American military personnel abroad, and U.S. nuclear weapons forward deployed in Europe. Extended nuclear deterrence, along with the forward deployment of vast amounts of conventional power, was a central element of America’s defense of its European allies. One of the factors that strengthened the conventional defensive posture of Europe is that Europe enjoys a certain amount of strategic depth.

Strategic depth is defined as the space available within a territory to halt an adversary attack, execute a counterattack, and end the conflict on terms acceptable to the counterattacking party. During the Cold War, NATO enjoyed a regional depth which allowed not only for NATO forces to fall back to more defendable geographic features in the face of a conventional attack, such as the Rhine, the Rhone, or even the Pyrenees, but strategic depth within Europe allowed either side to carry out strikes on European soil without escalating or expanding the conflict to a nuclear war on each other’s homelands.

While this geography served U.S. and allied interests in the Cold War, the United States lacks a similar level of strategic depth in the Indo-Pacific as it confronts the prospects of a large-scale conflict with China. Much of the geography in a U.S.-China conflict would take place over the open ocean and skies of the Western Pacific. As such, there are few defendable terrain features such as rivers or mountain ranges behind which an actor can rest, reset, and prepare for a counterattack.

Just as importantly, a battlefield in the Western Pacific means that there are fewer options for the distribution of basing. American and allied bases would therefore have to generate combat operations from a limited number of high priority bases in a conflict. The lack of defensible features and small number of high-value bases is in many ways the opposite condition of what the United States and its NATO allies experienced in the Cold War.

In contrast, China has enormous strategic depth due to its ability to generate combat power from any number of bases, launch sites, or ports along its enormous Pacific coast and its deep hinterland. In the Western Pacific, U.S. allies and partners are dispersed and in some cases thousands of miles away from each other, with neutral and non-aligned states dotted in between. As a result of the United States’ limited number of bases, owing to the scarcity of permanent land features in the Western Pacific, China can focus on a small number of critical targets to diminish American and allied combat effectiveness.

Further, the limited number of in theater bases increases the demands and stress on an aerial fleet and the logistics involved in keeping U.S. forces adequately supplied. It also makes for significantly longer ship and submarine transit times to and from more distant resupply points. Already in 2015 there was the issue of the rate at which missiles can be launched.

To counter China, the number and availability of sensor resources that can be devoted to integrated air and missile defense systems versus other missions must increase given the vertical proliferation of such systems. Also, the capacity of combat logistics forces needed to cycle ammunition ships between rear bases and forward reloading areas, maintain long-range, high-capacity carrier-based aerial refueling, and to sustain different operational concepts over prolonged periods of conflict must be expanded.

The United States, Japan, and Australia should consider pre-positioning substantial amounts of military capabilities directly relevant to deterrence operations, such as missile defense capabilities, fuel, and conventional munitions, in each other’s territories to create targeting dilemmas for China. Doing so would not only enhance knowledge of deterrence methods and challenges between allies in theater that are vastly different from Western Europe during the Cold War but also create existential misery for PRC defense planners.

Regardless of personal preference, complex issues related to nuclear strategy are now central in the Indo-Pacific region. The U.S. and its allies must deliberately evaluate the profound responsibilities that come with being members of a nuclear alliance.

Robert Peters is a Senior Research Fellow for Strategic Deterrence in The Heritage Foundation’s Allison Center for National Security. Prior to joining Heritage, Peters served as the lead strategist at the Defense Threat Reduction Agency, where he oversaw the office that developed the Agency’s five-year strategy, conducted the Agency’s research and tabletop exercise program, and executed Agency-level program evaluations. Dr. Christine Leah is a Fellow at the US National Institute for Deterrence Studies and has worked on nuclear issues at Yale, MIT, and RAND and in London, Singapore, and Canberra. She is the author of The Consequences of American Nuclear Disarmament and Australia and the Bomb. Views expressed by the author’s are their own.

Extended Deterrence and Strategic Depth was originally published on Global Security Review.

That gap undermines American extended deterrence because Washington cannot reassure allies or deter aggressors without accounting for South Asia’s threat calculus. AI arms developments in this region stem from colonial legacies and mistrust of great power intentions, creating a volatile strategic environment.

India’s Governance Innovation in Defense AI

India’s governance model integrates civilian oversight with defense research and ensures ethical deployment of AI. The Responsible AI Certification Pilot evaluated algorithms for explainability before clearance. Its National Strategy for AI mandates ethical review boards for dual-use systems. Developers must document bias-mitigation measures and escalation pathways. Embedding accountability at design phase stabilizes deterrence signals by reducing inadvertent algorithmic behaviors.

The Evaluating Trustworthy AI (ETAI) Framework advances defense AI governance. It enforces five principles: reliability, security, transparency, fairness, privacy, and sets rigorous criteria for system assessment. Chief of Defense, Staff General Anil Chauhan, stressed resilience against adversarial attacks, highlighting the challenge of balancing effectiveness and safety. By mandating continuous validation against evolving threat scenarios, ETAI prevents mission creep and maintains operational integrity under stress.

India’s dual use by design philosophy embeds safeguards within prototypes from inception. This contrasts with reactive models that regulate AI after deployment. Civilian launch-authorization channels separate political intent from technical execution, ensuring decisions remain under human control and reinforcing credibility in crisis moments. Regular red-team exercises involving independent experts further validate system robustness and reduce risks of false positives in autonomous targeting.

Strengthening Extended Deterrence through Cooperation

US-India collaboration on AI verification can reinforce extended deterrence by aligning technical standards and testing protocols. The iCET fact sheet outlines secure information sharing and joint safety trials. Launched in January 2023, iCET has already enabled co-production of jet engines and transfer of advanced drone technologies. Building on this foundation, specialized working groups could develop common benchmarks for adversarial-resistance testing and automated anomaly detection.

A Center for Strategic and International Studies report recommends a trilateral verification cell blending American evaluation tools with India’s ethical reviews. Joint trials of autonomous air-defense algorithms would demonstrate interoperability and resolve. A shared “AI Red Flag” system would alert capitals to anomalous behaviors and reduce strategic surprise. Embedding cryptographically secure logging of decision path data ensures an immutable audit trail for post-event analysis and confidence building.

The INDUS-X initiative, launched during Prime Minister Narendra Modi’s 2023 US visit, integrates responsible AI principles into defense innovation. By aligning standards, both countries ensure AI systems enhance strategic stability rather than undermine it. Expanding INDUS-X to include scenario-based wargaming with allied partners can stress-test ethical frameworks and calibrate thresholds for human intervention under duress. This model can extend under the Quad framework, pressuring authoritarian regimes to adopt transparency measures.

Institutionalizing Global AI Arms Control

A formal arms control dialogue should adopt India’s baseline standards for ethical AI governance. The UNIDIR report calls for universal bias audits and incident-reporting obligations to prevent unintended escalation. Carnegie scholars propose a tiered certification process under a new protocol for autonomous systems within the Convention on Certain Conventional Weapons, requiring peer review of algorithms before deployment. Embedding such certification in national export-control regimes would create global incentives for adherence.

The UN General Assembly has established an Independent AI Scientific Panel and a Global Dialogue on AI Governance to issue annual assessments on risks and norms. This mechanism can evaluate military AI applications and recommend confidence-building measures. Procedural transparency would coexist with confidentiality requirements, balancing security with mutual reassurance. Regular joint workshops on risk-assessment methodologies can diffuse best practices and diffuse mistrust among major powers.

Regional Applications and Future Prospects

India’s responsible AI framework must inspire regional adoption and confidence-building measures. Pakistan and China should engage transparency initiatives to prevent dangerous asymmetries in AI capabilities. Proposed measures include joint research on AI safety, shared performance databases, and collaborative development of detection algorithms.

Successful tests of India’s hypersonic ET-LDHCM system, capable of Mach 8 and a 1,500-kilometer range, underscore the urgency of governance frameworks before fully autonomous weapons deploy. The Quad’s model of Indo-Pacific cooperation provides a template for multilateral norms on responsible AI in defense. Extending these norms to confidence-building measures such as pre-deployment notifications and automated backchannels can reduce the risk of inadvertent escalation.

Looking ahead to the United Nations General Assembly meeting on AI governance in September 2024, American policymakers can leverage India’s experience. Joint verification exercises and an ethical audit regime will establish global norms for military AI. Integrating lessons from ETAI and iCET into the assembly’s resolutions can produce enforceable standards that bind both democratic and authoritarian states. This approach will reaffirm American extended deterrence and help prevent destabilizing AI-driven arms races worldwide.

By demonstrating that ethical AI development strengthens rather than weakens deterrence credibility, India’s model provides both technical solutions and normative frameworks for managing the military applications of artificial intelligence. Sustained international cooperation on these principles is pivotal for securing strategic stability in a rapidly evolving technological landscape.

Vaibhav Chhimpa is a researcher who previously worked with the Department of Science & Technology (DST), India. Views expressed are the Author’s own.

The Artificial Intelligence (AI) Arms Race in South Asia was originally published on Global Security Review.

After World War II, both Japan and Germany became allies of the United States while the Soviet Union became a serious enemy. Most importantly, the Soviet Union established in Eastern Europe an alliance of nations under the Warsaw Pact. Thus, a decades-long Cold War began.

It was widely assumed that the collapse of the Soviet Union heralded an era of global cooperation and the end of great power competition and conflict. Arms control brought about the Intermediate Nuclear Forces Treaty (INF), Strategic Arms Reduction Treaty (START I and II) and the Conventional Forces in Europe Treaty (CFE) agreements.

Today, however, as many military and diplomatic experts conclude, the dangers facing the United States and its allies are more complex and more serious than perhaps at any time since the end of WWII. Now, more than ever, arms control remains elusive.

Nuclear conflicts are now among the most serious potential dangers, including proliferation of nuclear weapons, the pending end to formal strategic arms limits, and the actual use of theater nuclear force arising out of existing conventional conflicts.

To lessen such dangers, nuclear abolitionists proffer numerous arms control proposals. Six ideas are most common: (1) a policy of no first use of nuclear weapons; (2) adoption of a “minimum deterrent” nuclear strategy; (3) the elimination of intercontinental ballistic missiles (ICBMs); (4) a unilateral freeze of US nuclear force development; (5) an extension of New START nuclear arms limits; and (6) abandonment of any new theater nuclear forces such as the nuclear sea-launched cruise missile (SLCM-N) or the sea-launched cruise missile. All of these strategies harm American and allied security and make worse the strategic nuclear balance.

The US extended deterrent has, for 70 years, rested on the option of using nuclear force to stop massive conventional attacks on US forces and allies overseas. Depending on the regional military balance, such nuclear extended deterrent options were, and remain, viewed by our allies as central to keeping their nation safe from Soviet/Russian and Chinese aggression.

Minimum deterrence strategies assume the only retaliatory targets the US needs to hold at risk are adversary cities where a few hundred nuclear warheads are all that is needed to deter. This doctrine assumes Russia and China will be completely deterred by the fear of losing large numbers of their civilian population. But this ignores the fact that these regimes murdered millions of their own people to gain power—showing little value for human life. Even worse, a minimum deterrence strategy would also leave alive the leaders of such nations as well as their nuclear and conventional forces with which they will commit aggression.

Cutting out the land-based ICBM force and a third of the ballistic missile submarine force would unilaterally reduce the US strategic nuclear force to around 500 at-sea on-alert warheads. This would be only a third of the allowed New START treaty force and give an 8 to 1 to 18 to 1 Russian and Chinese advantage in nuclear weapons, respectively. This would ensure that both nations frequently use nuclear weapons for coercion and blackmail.

A freeze on American nuclear force development would be a deterrence disaster. The US has not yet fielded any portion of the modernized triad, which is not rusting into obsolescence. Russia has completed over 90 percent of its own modernization and China is well on its way to tripling the size of its nuclear force over the next decade. Neither would participate in a unilateral freeze. Again, the United States would face a far superior adversary.

An extension of New START sounds attractive but would be harmful to American interests. It would delay any needed uploading of American warheads. It would not affect or make transparent China’s breathtaking nuclear build-up. And without a sea change in Russian behavior, verifying current arms limits would still be impossible, given the past five years of treaty violations by Moscow.

The Congressional Strategic Posture Commission report of October 2023 emphasized the urgency of rebalancing the current gap in US regional nuclear forces. The SLCM-N and better theater air deterrence were key recommended upgrades, both of which would be eliminated by a number of these proposals. It is precisely this deterrence gap which Moscow has leveraged to limit US and allied assistance to Ukraine.

The restraint these arms control ideas wish upon the US military assumes that Russia and China will reciprocate. But in the multiple decades after the end of the Soviet Union, massive US restraint was eventually met with what Admiral Richard has described as a “breathtaking” Chinese build-up and a near matching Russian modernization. As former Secretary of Defense Harold Brown once warned, “We build, they build. We stop; they build.”

Now is the time to reject nuclear abolition for what it is, a purposeful effort to weaken the United States. American lives and freedom depend on it.

Peter Huessy is Senior Fellow at the National Institute for Deterrence Studies. Views expressed are his own. 

Making Nuclear Blackmail Great Again was originally published on Global Security Review.

The near completion of Iran’s nuclear weapon brings to mind another rogue state’s activities. In 2006, after years of global efforts aimed at preventing the Kim regime from obtaining nuclear weapons, North Korea (DPRK) conducted its first nuclear test. Today, the DPRK has an estimated 50 nuclear weapons and fissile material for 6 or 7 more.

An in-depth comparison of US engagement with Iran and the DPRK’s nuclear programs requires a much longer paper. However, a brief comparative analysis of American deterrence of these adversaries is possible. Applying national interests, objectives, and activities, a methodology employed by decision analysis experts yields interesting results.

Globally, the United States has an enduring interest in safeguarding its national security and sovereignty. Underneath this enduring interest, it has a core objective of defending allies and partners, including through credible deterrence (e.g., preventing conventional and/or nuclear attacks on allies and partners by the DPRK, China, Russia, and Iran). Other major American objectives include safeguarding the free flow of commerce, countering transnational threats, preventing regional domination or aggression, and advancing nonproliferation.

The United States advances deterrence through a range of activities, including the presence of its own military assets and security cooperation with allies and partners. In the Indo-Pacific, this includes mutual defense treaties with Australia, the Philippines; South Korea, and Japan (the latter two of which are explicitly covered by the US nuclear umbrella); arms sales to Taiwan; and military exercises with allies.

More recently, the Trump administration emphasized increased allied defense spending to support “burden-sharing.” Given the limitations of the American industrial base, this is necessary even as the US maintains efforts to prevent Chinese and North Korean aggression.

Deterrence against North Korea is successful insofar as it keeps the North from invading the South or launching nuclear strikes on US Indo-Pacific allies. However, this deterrence is increasingly complicated by Chinese and Russian protection of the DPRK through mutual defense treaties.

This lends greater urgency to the American call for allies to increase defense spending, as there is a real risk of simultaneous conflict with China and North Korea, a scenario requiring substantial military assets in the region. Fulfilling the objective of regional deterrence also requires containing aggression from adversaries and bolstering security cooperation with allies and partners.

The United States supports deterrence in the Middle East by deploying its military forces and cooperating with allies and partners. However, regional deterrence, which does not formally extend the US nuclear umbrella to regional allies and partners (including Israel), often manifests as kinetic operations against adversaries, whether through security assistance or direct attacks. Thus, in the Middle East, deterrence also means advancing the goals of counter proliferation and degrading terror groups who threaten allies.

Unlike in the Indo-Pacific, where the United States prefers to contain aggression and expansion from nuclear-armed adversaries without firing a shot, in the Middle East, it will employ kinetic means to fulfill its objectives. For decades, the United States deterred Iran through sanctions, negotiations, and the threat of military action. It was when President Trump believed Iran’s uranium enrichment program was “at its highest levels and…unprecedented for a state without nuclear weapons” that the US conducted kinetic attack.

The deep rifts in Middle East politics complicates the activities needed to maintain deterrence in the region. Prospects for security cooperation between Israel and the Gulf states, for example, are challenging given the history of the Arab-Israeli conflict, including Israel’s recent strike against Hamas in Qatar.

Deterrence must also account for energy security concerns, given that US attempts to contain a nuclear-armed Iran may lead the regime to weaponize its control over the Straits of Hormuz. It is also unclear how far back American strikes set Iran’s nuclear program. If Iran’s proxy network persists, they can also commit further violence against the United States, its allies, and partners through attacks on military, commercial, and civilian targets.

None of these challenges are simple. In the coming years American deterrence guarantees to allies and partners may look very different as the nation shifts focus to the homeland and the Indo-Pacific. It remains to be seen how this imperative is realized in the forthcoming National Defense Strategy. Some critics note that, in practice, the United States remains heavily focused on the Middle East and Europe. Much of the ability to deter Iran and North Korea will be determined by these larger strategic shifts.

As American decision-makers face questions about effectively deploying American power across the globe, analyzing national interests, objectives, and activities can provide a helpful framework. Assessing the requirements needed to advance larger regional goals brings trade-offs into focus, better preparing the American warfighter for multiple threat scenarios. In short, this approach can yield meaningful results for those in the decision-making chair at critical moments when faced with complex problems, including maintaining credible deterrence.

Nathan Heath is an analyst at NSI. Views expressed are his own.

Deterrence of North Korea and Iran: Interests-Objectives-Analysis Framework was originally published on Global Security Review.

The simulated conflict ended without regime change in Pyongyang, allowing Kim Jong Un to claim a political victory. While avoiding nuclear escalation may seem prudent, such an outcome could deal a lasting blow to the credibility of America’s extended deterrence in East Asia.

The Guardian Tiger scenario should not be dismissed as an academic exercise. It reveals a critical vulnerability in the psychological foundation of deterrence: the perception among adversaries and allies of American willingness to use nuclear weapons in defense of its partners. If allies conclude that Washington will not cross the nuclear threshold even after a nuclear attack, they may question the value of the nuclear umbrella. Adversaries, meanwhile, may learn that nuclear coercion, carefully calibrated, can succeed.

In the simulation, North Korea escalated to a tactical nuclear strike against a South Korean Navy destroyer in the East Sea (Guardian Tiger I) and later against the Chinhae naval base (Guardian Tiger II), home to the Republic of Korea Navy’s Submarine Force Command and occasionally used for allied submarine visits. According to the report, American leaders debated nuclear retaliation but settled on conventional “pulsed” strikes.

In a real-world scenario, such strikes could plausibly involve precision-guided munitions from long-range bombers like the B1-B and Tomahawk cruise missiles launched from Arleigh Burke-class destroyers, aimed at targets such as missile transporter-erector launchers, hardened artillery positions along the DMZ, and command-and-control facilities near Pyongyang. In the exercise, the US stopped short of regime change, seeking to avoid further nuclear escalation and prevent a direct war with China—a decision that would have allowed Pyongyang to absorb the damage, count the survival of its regime as a strategic win, and enter negotiations from a stronger position.

Extended deterrence depends on more than military capability. It is rooted in the belief, shared by allies and adversaries alike, that the United States is willing to defend its partners by all means necessary, including nuclear weapons. An American failure to respond in kind to North Korean nuclear use would plant seeds of doubt. Japanese and South Korean leaders could begin to question whether Washington would truly “trade Los Angeles for Tokyo or Seoul” if the stakes involved limited nuclear use rather than an existential threat to the United States.

That doubt could trigger cascading effects. Calls in Seoul’s National Assembly for indigenous nuclear weapons, expanded production of the Hyunmoo‑4 ballistic missile, and pressure on Tokyo to more seriously pursue nuclear sharing arrangements have already entered the political debate.

This concern is amplified by North Korea’s 2022 nuclear weapons law, which openly authorizes preemptive nuclear strikes in scenarios ranging from an imminent attack on leadership to undefined overwhelming crisis situations. Analysts note that the law’s language effectively lowers the threshold for nuclear use, implying tactical employment to repel invasion and seize the initiative in war. Rather than viewing nuclear use as a desperate last resort, Pyongyang now appears willing to employ such weapons early. For example, a low‑yield detonation against South Korean or American forward-deployed forces to shock Washington and Seoul into political concessions.

The challenge grows sharper in the event of a dual contingency: simultaneous crises on the Korean Peninsula and in the Taiwan Strait. Guardian Tiger II simulated such a scenario, with China launching a multi-domain assault on Taiwan while North Korea escalated on the peninsula. In such a real-world situation, US Indo-Pacific Command could be forced to divert the USS Ronald Reagan Carrier Strike Group from Yokosuka to the waters east of Taiwan, deploy B‑52H bombers to deter Chinese operations, and even consider repositioning some Terminal High Altitude Area Defense and Patriot missile defense batteries from South Korea to protect American assets in Okinawa and Guam.

Such shifts illustrate how a stretched American posture could reduce missile interception capacity on the peninsula and temporarily remove some nuclear-capable platforms from immediate Korean defense. North Korea could calculate that Washington, already balancing a larger confrontation with China, would avoid nuclear escalation in Korea to conserve resources and limit the risk of an all-out US-China war.

The political and strategic consequences would ripple across the region. In Seoul, public and elite opinion could shift sharply toward developing an independent nuclear arsenal—something 71 percent of South Koreans already support. South Korea’s nuclear latency, widely assessed by proliferation experts, suggests it could potentially produce a weapon in as little as 6 months if political consensus formed.

In Tokyo, the debate over counterstrike capabilities, missile defense expansion, and potential nuclear sharing with the United States would intensify, potentially accelerating deployment of Tomahawk missiles and further integration of F‑35A fighters, which, in the US fleet, are being certified for B61‑12 nuclear bombs, into allied defense planning. Beijing, meanwhile, could seize the opportunity to position itself as a stabilizing broker, offering to mediate between Seoul and Pyongyang while shielding the latter from full international accountability, further eroding American influence.

Avoiding nuclear escalation in a limited-strike scenario is understandable, but Washington cannot afford such a decision to be interpreted as weakness. Strengthening deterrence credibility in Northeast Asia will require more than declaratory statements. Clear and credible red lines for nuclear use must be communicated both publicly and privately. Integrated nuclear-conventional planning with allies should ensure that flexible response options, from proportionate nuclear strikes to overwhelming conventional retaliation, are executable on short notice. Contingency planning must explicitly account for simultaneous conflicts in Korea and Taiwan, with pre-positioned munitions, dispersed basing arrangements for nuclear-capable aircraft, and rotational deployments of dual-capable ships and submarines to maintain strategic presence even under force diversion.

Equally important is sustained alliance signaling. These include high-visibility joint exercises like the US-ROK Freedom Shield exercises, regular port visits by nuclear-capable submarines, and trilateral missile tracking drills with Japan. These measures reassure allies, complicate adversary calculations, and demonstrate that any nuclear use will incur unacceptable costs.

The Guardian Tiger exercises are valuable not because they predict the future, but because they reveal how quickly deterrence can fray in the fog of crisis. A single decision to refrain from nuclear retaliation, however understandable at the time, could reverberate for decades and reshape the strategic balance in East Asia. In the nuclear age, preserving deterrence means guarding against both uncontrolled escalation and the perceptions of hesitation that could invite it.

Dr. Ju Hyung Kim, President of the Security Management Institute, a defense think tank affiliated with the South Korean National Assembly, is currently adapting his doctoral dissertation, “Japan’s Security Contribution to South Korea, 1950 to 2023,” into a book.

A Nuclear Umbrella in Peril: Lessons from North Korea’s Escalation Scenarios was originally published on Global Security Review.

American allies are unanimous in rejecting extended deterrence that does not include the potential use of nuclear weapons. NFU would give a nuclear-armed adversary, such as Russia, a sanctuary from which to use or threaten to use nuclear weapons. Removing American nuclear forces as a credible deterrent cedes all bargaining power to Moscow, China, and any other would-be nuclear or conventional adversary.

Associated with this campaign is an effort to remove the president’s authority to employ nuclear weapons without at least two additional officials supporting such a decision. They also claim the president would have very little time to decide to retaliate with nuclear weapons, should the US face a nuclear first strike. Of course, ending the president’s “sole authority” would only exacerbate the challenge.

There is a false argument often repeated that American nuclear weapons are on “hair trigger alert” and the president might make a reckless decision to launch, given the assumed minimal time available to determine whether a nuclear response is warranted. It is of course clear how such a decision-making process is significantly impeded if the president must receive concurrence from other officials to make a decision. Such a move reduces the credibility of American deterrence in the minds of adversaries.

Three other factors are also being brought to bear in this campaign to adopt a NFU strategy. First, there is an assertion that the president could be reckless and impetuous and might unnecessarily order the use of nuclear weapons. Second, there is an assertion that a president’s order may be illegal and thus having a “second confirmation authority/opinion” is a good thing. Third, there is an assertion that American deterrence strategy requires the use of nuclear weapons against cities and urban areas—with the objective of killing millions of civilians.

All three assertions are false. The first assertion is belied by the fact that every president understands the dangers of nuclear war. President Donald Trump made several statements to this effect, so the notion he, or any president, would be “reckless and impetuous” does not bear scrutiny. His administration’s major investments in deterrence illustrate the seriousness with which the country seeks to prevent any use of nuclear weapons.

The second assertion on the “illegality” of ordering nuclear use ignores the constitutional role of the president as commander in chief. States wage war regardless of whether the United Nations says it is illegal. Nuclear weapons are merely tools of war. They are not special. They simply pack more explosive energy in a smaller package than a conventional weapon.

The third assertion ignores the Department of Defense Law of War Manual, which explicitly states that attacks against unarmed civilians and non-combatants violate just war principles and are prohibited. American nuclear deterrence strategy explicitly rules out the purposeful targeting of civilian populations and cities, a posture many nuclear abolitionists oppose as they advocate city busting.

Given US deterrence strategy strictly forbids the targeting of cities and civilian populations, there is no basis for believing that carrying out the president’s order to employ weapons will be or be seen as illegal by either civilian or military officials. Thus, there is no need for multiple individuals involved in releasing weapons, all while the president is working through an already compressed and stressful timeline.

A recent “study” by the University of Massachusetts and the Human Security Lab cooked the books by asking both military and civilian officials whether they would oppose an “illegal” presidential order requiring the US to launch nuclear weapons against civilians. Many respondents, having been coached to believe such orders were realistically probable, said they would oppose such orders or at least seek to question the orders. These results were then hijacked to create a false narrative that even military officials now doubt President Trump’s leadership and would not obey the commander in chief if ordered to employ nuclear weapons. Given the survey was conducted during the Israel and US military strikes against Iran, the results were designed to call into question the reasonableness of conventional strikes on Iran.

The campaign to call into question American deterrence policy is based on a willful misrepresentation of states policy and strategic reality. Annie Jacobsen dramatized this misinformation in her book Nuclear War: A Scenario, in which she described US nuclear deterrence strategy as crazy. She proposed jettisoning the use of nuclear weapons for deterrence, whether used first or second, and taking such capability completely off the table. When asked what replacement she recommended, Jacobsen claimed such a question was beyond her expertise.

Leaving the nuclear deterrent off the table is part of a concerted disarmament campaign pushed by nuclear abolitionists. These groups were able to ensure the United Nations passed a treaty that bans nuclear weapons, which is as valuable as a treaty which bans war. While 73 nations signed the treaty, none are nuclear weapons states.

The International Campaign to Abolish Nuclear Weapons is seeking to stop nuclear modernization in the United States, which is strange considering Russia and China are in the midst of major modernization programs. There is nothing less effective than taking a knife to a gunfight, which is exactly what advocates of nuclear disarmament would impose on the free world. For nearly 80 years the US has made sure the nation fields the systems needed to ensure deterrence works. Now is not the time to abandon a successful strategy for the sake of feel-good activism.

Peter Huessy is a Senior Fellow at the National Institute for Deterrence Studies.

The Campaign to End Nuclear Deterrence was originally published on Global Security Review.

Peace in international affairs is not a natural state; it is actively maintained through strength. As Winston Churchill famously noted, true peace is achieved not by retreating from power, but by wielding it wisely.

Today, with China rapidly modernizing its conventional and nuclear forces and Russia pursuing territorial ambitions backed by nuclear threats, a kinder and gentler approach risks inviting greater aggression. Only a credible deterrence posture—grounded in empirical evidence and historical lessons—can secure strategic stability.

Reinforcing American nuclear dominance is not about favoring conflict over diplomacy; it is about ensuring that American deterrence is strong enough to compel respect and maintain global order in an increasingly volatile world.

First Things First

American nuclear weapons serve as a cornerstone of deterrence, preventing strategic attack and reassuring allies. This element of deterrence is under pressure as China and Russia rapidly expand their arsenals, and North Korea advances its capabilities, creating a complex, multipolar threat environment.

The primary point in the original article was the need to reestablish American nuclear dominance—not as a provocation but as a stabilizing force. In an era of rising threats and eroding deterrence, a more robust and flexible nuclear posture is essential to prevent conflict, assure allies, and preserve global security.

Misreading the Nature of Nuclear Dominance

A primary claim presented by Canyon is that advocating for nuclear dominance is tantamount to seeking advantage through expansion, thereby increasing the risk of catastrophe. This is a misrepresentation of evidence. The call for dominance is not about reckless arms racing or seeking victory in nuclear war. Rather, it is about ensuring that the United States’ nuclear posture is credible, flexible, and resilient enough to deter adversaries in a world where the old rules no longer apply.

The Cold War’s doctrine of mutually assured destruction (MAD) worked because both sides fielded survivable second-strike capabilities and clearly communicated those capabilities to the other. Today, China and Russia are modernizing and diversifying their arsenals at a pace not seen since the 1980s. China’s warhead stockpile surpassed 600 in 2025 and is projected to double by 2030. Russia, meanwhile, maintains the world’s largest inventory of non-strategic nuclear weapons—estimated at 2,000 warheads—many of which are integrated into conventional military operations, as seen in Ukraine.

Dominance in this context means closing critical gaps—like the absence of credible theater-range nuclear options—and ensuring that American extended deterrence is not just theoretical, but practical and adaptable to new threats.

Historical Lessons: Arms Races and Escalation

Invocation of the Cold War arms race is erroneously used as a cautionary tale, suggesting that any move toward dominance will inevitably provoke adversaries and increase the risk of miscalculation. History is more nuanced.

The most dangerous moments of the Cold War—Berlin (1961) and Cuba (1962)—were not the result of American dominance but of perceived weakness, ambiguity, and miscommunication. The 1980s nuclear buildup, while expensive, ultimately contributed to the Soviet Union’s willingness to negotiate arms reductions (Intermediate-Range Nuclear Forces Treaty (INF) and Strategic Arms Reduction Treaty (START)) from a position of mutual strength. As former Secretary of Defense James Schlesinger noted, “Deterrence is not about parity; it’s about credibility and resolve.”

Moreover, the post–Cold War era of American nuclear restraint did not prevent Russia’s annexation of Crimea, China’s militarization of the South China Sea, or North Korea’s nuclear breakout. A senior research professor at Johns Hopkins School of Advanced International Studies testified before the Senate Armed Services Committee, asserting that “adversaries exploit perceived gaps in US resolve and capability, not its strength.”

The Risks of a Passive Posture

Canyon argues that modernizing or expanding American nuclear capabilities—such as the SLCM-N or space-based interceptors—will only accelerate a global arms race. Yet, the data show that adversaries are already racing ahead, regardless of American action.

Nearly 95 percent of Russia’s nuclear triad is modernized, with new hypersonic and dual-capable systems. China is rapidly fielding road-mobile intercontinental ballistic missiles (ICBM), ballistic missile submarines, and hypersonic glide vehicles. North Korea bolsters over 50 nuclear weapons with growing missile survivability and regional reach.

Iran was advancing toward a nuclear threshold, with uranium-enrichment activities previously nearing weapons-grade levels. In response, the United States launched a preemptive strike targeting Iran’s key nuclear facilities at Fordow, Natanz, and Isfahan. American officials framed the operation as a limited, precision action designed to neutralize an imminent threat and prevent a larger, more destructive regional war.

By acting before Iran could cross the nuclear threshold, the US aimed to avoid a future scenario in which multiple states—particularly Israel—might engage in broader, uncoordinated military campaigns. The strike also sent a calibrated message intended to deter further escalation while leaving diplomatic channels open.

Iran’s ballistic missile arsenal remains one of the largest in the region, and its proxy network, coordinated through the Islamic Revolutionary Guard Corps’ Quds Force, continues to operate across Iraq, Lebanon, Syria, and Yemen.

The US, by contrast, faces delays and budget overruns in its own modernization efforts and lacks credible theater-range nuclear options in both Europe and Asia. This is not dominance; it is vulnerability.

Diplomacy and Arms Control: Not Mutually Exclusive

Canyon calls for a return to arms control and diplomacy, citing the expiration of New START in 2026. Diplomacy is essential, but history shows that arms control only works when backed by credible deterrence.

The most successful arms control agreements (Strategic Arms Limitations Talks (SALT), INF, START) were negotiated when the US held a position of strength. The collapse of the INF Treaty and the uncertain future of New START are not the result of American intransigence but of Russian violations and China’s refusal to join trilateral talks. As the Congressional Research Service notes, “Arms control is not a substitute for deterrence; it is a complement to it.”

Alliance Cohesion and Forward Deployment

The suggestion that forward-deploying nuclear assets makes allies “targets, not safer” is textbook pacifist propaganda. This ignores decades of alliance management and empirical research. Extended deterrence—backed by visible, credible, American capabilities—has prevented proliferation in Japan, South Korea, and NATO for generations.

A 2023 RAND study found that allies are more likely to pursue their own nuclear options if they doubt American commitments. Forward deployment, joint planning, and regular consultations are essential to alliance cohesion and nonproliferation. The United States’ nuclear umbrella extends to over 30 allied and partner nations, primarily within NATO, but also including countries like Australia, Japan, and South Korea. These nations are assured of American protection, including potential nuclear response, in case of attack.

Economic Trade-offs: Security and Prosperity

Context is key. Canyon points to the $1 trillion cost of nuclear modernization over 30 years, suggesting these funds would be better spent elsewhere. This figure represents less than 5 percent of projected defense spending over that period, and less than 0.1 percent of gross domestic product annually. The cost of deterrence is dwarfed by the potential costs of conventional war should deterrence fail. Small conflicts like Afghanistan and Iraq cost over $7 trillion. The cost of a war against China would be far higher.

National strength is not a zero-sum game between security and social spending. The credibility of US leadership—and the stability it underwrites—enables the very prosperity and global order that supports education, healthcare, and infrastructure.

Public Opinion and Global Norms: A Reality Check

Canyon’s claim that “most Americans and the global community favor arms reduction” lacks empirical rigor. Sweeping generalizations like this demand robust, replicated data across diverse populations. Without that, such assertions are more rhetorical than factual.

In contrast, multiple credible surveys reveal consistent public support for deterrence and defense. For example, a November 2022 poll found that 60 percent of Americans believe the military’s primary role is to deter attacks on the US. A national survey showed that a vast majority of voters view nuclear deterrence as critical to national security, with nearly three-quarters supporting modernization efforts.

The 2023 NATO Annual Tracking Survey found that 61 percent of allied respondents believe NATO membership reduces the likelihood of foreign attack, and 58 percent see it as a deterrent. In Germany, 64 percent support a European nuclear deterrent independent of the US, reflecting growing concern over strategic autonomy.

Another poll reported that 69 percent of Americans feel defense spending increases their sense of security. These data points underscore a clear trend; public opinion, in the US and Europe, favors credible deterrence over disarmament, especially amid rising threats from China, North Korea, and Russia. This is the factual foundation that reinforces the case for maintaining and strengthening American nuclear capabilities, not as a provocation, but as a stabilizing force in an increasingly volatile world.

The Real Existential Threats

Extreme weather events, natural disasters, pandemics, and mass displacement are among today’s gravest challenges. Yet, using these non-nuclear crises to justify a softened stance on nuclear deterrence is like comparing apples and oranges. Even the most intelligent and well-informed individuals sometimes fall into the trap of an “either-or” debate, mistakenly assuming it is only possible to address one threat or the other.

Multiple risks demand simultaneous attention. Credible nuclear deterrence is not an overreaction; it is a precise, vital response to a threat that, if unleashed, would compound other crises and shatter global stability.

Conclusion: Dominance as Responsible Leadership

Canyon’s critique is a masterclass in wishful thinking, a dangerously naive philosophy that would lead the free world to ruin if ever implemented. It stems from a misplaced comfort with notions of restraint and diplomacy, ignoring the hard reality that security is founded on military strength. History, from the catastrophic failures of appeasement in the 1930s to the isolationism preceding Pearl Harbor, teaches that weakness only emboldens tyrants. Each concession, whether to Hitler’s remilitarization of the Rhineland or to modern-day aggressors, proves that diplomacy without credible force is nothing more than indulgence.

The current global landscape is dominated by adversaries who respect only strength. Russia, under its neo-imperialist regime, wields its vast nuclear arsenal to bolster conventional aggression. China’s unprecedented military modernization is reshaping the balance of power in Asia, and Iran continues its relentless march toward nuclear capability while sponsoring proxy terror. To imagine that these regimes would respond to soft words or empty promises is akin to believing that a repeatedly misbehaving child will learn simply by being put in timeout. Real change is forced change.

American strength, particularly through a robust nuclear deterrent, is not a provocation; it is the only language these adversaries understand. It ensures that any aggressive action exacts a price too steep to consider. In an increasingly perilous world, where the stakes are nothing less than the survival of global stability, a commitment to maintaining unparalleled military dominance is both pragmatic and essential. Ignoring this reality is not idealism, it is willful blindness that invites disaster.

Brandon Toliver is a Senior Fellow at the National Institute for Deterrence Studies.

Exposing Willful Blindness: American Strength Is Nonnegotiable was originally published on Global Security Review.

This issue is not new. In his 1957 book Nuclear Weapons and Foreign Policy, Henry Kissinger made a controversial, yet analytically compelling, argument for the possible utility of tactical nuclear weapons in limited wars. He warned that massive retaliation was neither credible nor effective for deterring limited aggression and that a rigid dichotomy between conventional and strategic nuclear responses risked inviting coercion at the lower rungs of the escalation ladder. For Kissinger, introducing the possibility of limited nuclear use was not a call to war, but a recognition of strategic reality; the ability to escalate with restraint could deter adversaries from escalating first.

Fast forward to the 2030 scenarios modeled in Guardian Tiger I and II, and Kissinger’s insights remain disturbingly relevant. In the exercise, North Korea carried out a low-yield nuclear strike targeting South Korean naval vessels. American decision-makers, faced with the risk of horizontal escalation with China and the lack of consensus among allies, struggled to identify a proportional yet credible response. The idea of a retaliatory tactical nuclear strike was floated, but the simulated American leadership hesitated, reflecting both doctrinal ambiguity and an operational gap in American nuclear capabilities.

The risks of such hesitation are manifold. First, American restraint may be misinterpreted as indecision or weakness, particularly by allies like South Korea and Japan, who are directly exposed to North Korean and Chinese threats. Second, it creates an opening for adversaries to believe they can escalate to the nuclear level without inviting proportional retaliation. Third, it undermines the entire architecture of extended deterrence that underpins regional security.

Critics will rightly point out the perils of normalizing nuclear use. Introducing tactical nuclear weapons into a conflict zone invites moral hazards, increases the risk of miscalculation, and breaks long-standing nuclear taboos. It also challenges existing declaratory policies, such as the 2022 P5 Joint Statement affirming that “a nuclear war cannot be won and must never be fought.”

But these arguments, while valid in principle, must be weighed against the operational reality that a low-yield nuclear strike by an adversary may not be deterred by threats of massive retaliation. As the Atlantic Council report noted, North Korea’s nuclear doctrine increasingly incorporates elements of pre-delegated authority, tactical nuclear use, and efforts toward a more survivable second-strike posture. If the United States signals that it will not respond proportionally to a limited nuclear attack, North Korea may calculate that it can use nuclear weapons to coerce the South or constrain American action without triggering regime-ending consequences.

Moreover, the credibility problem is not confined to North Korea. China, observing Washington’s reluctance to respond in kind, may also be emboldened to engage in horizontal escalation, confident that the United States’s nuclear threshold is politically—and perhaps operationally—immobile. This perception could unravel the strategic coherence of integrated deterrence.

To address these challenges, US Forces Korea (USFK) and Indo-Pacific Command should adopt a more robust approach across multiple dimensions. First, the United States should consider forward-deploying platforms capable of delivering low-yield nuclear weapons. This could include the reintroduction of dual-capable aircraft or sea-based assets positioned in or near the Korean Peninsula. Such deployments must be both survivable and possess the ability to clearly signal an adversary of will, while being fully integrated into bilateral operational planning with the Republic of Korea (ROK).

Second, escalation options must be clarified through updates to American declaratory policy. This does not mean issuing public ultimatums or fixed thresholds but rather ensuring that adversaries understand the United States is willing to conduct proportional nuclear responses if deterrence fails. Strategic ambiguity must not become strategic paralysis.

Third, while the US and South Korea launched the Nuclear Consultative Group (NCG) in 2023 to enhance extended deterrence coordination, further institutionalization is needed. A structure modeled more closely on the North Atlantic Treaty Organization’s (NATO) Nuclear Planning Group would help deepen transparency, signal unity of purpose, and reduce the risk of fragmented responses during crises.

Fourth, both US and ROK forces must be equipped and trained to operate in the aftermath of a limited nuclear strike. This includes rehearsals and exercises focused on base survivability, radiological detection and decontamination, logistics continuity, and the resilience of command-and-control (C2) systems.

Fifth, strategic communication must be strengthened. Clear and consistent messaging to both adversaries and allies is critical. Deterrence depends not only on military capabilities, but also on the perceived credibility of those capabilities and the intentions behind them.

Ultimately, the goal of these measures is not to normalize the use of nuclear weapons, but to reinforce the threshold against their use by making deterrence more credible and responsive.

If that threshold is ever crossed and the United States fails to respond proportionately, the credibility of its extended deterrence architecture could unravel. The Guardian Tiger exercises highlight this grim possibility and should serve as a clarion call to action for policy and defense leaders alike.

As Kissinger warned in 1957, the danger of total war arises not so much from a deliberate decision to embark on it as from a series of actions which, though rational in themselves, cumulatively lead to disaster. The United States must ensure that its rational desire to avoid nuclear escalation does not lead to an irrational loss of deterrence. Tactical nuclear flexibility, responsibly exercised and credibly signaled, may be the painful but necessary insurance policy to uphold peace in East Asia.

Dr. Ju Hyung Kim, President of the Security Management Institute, a defense think tank affiliated with the South Korean National Assembly, is currently adapting his doctoral dissertation, “Japan’s Security Contribution to South Korea, 1950 to 2023,” into a book.

The Case for US Low-Yield Nuclear Options in Korea was originally published on Global Security Review.

As adversaries like China, Iran, North Korea, and Russia expand their arsenals and refine their strategies, the United States faces a stark choice: adapt and strengthen its nuclear posture or risk falling behind in an era of escalating threats. The time for hesitation has passed—reinforcing dominance, closing critical gaps, and securing global stability demands immediate action.

Russia presents the most immediate and multifaceted nuclear threat. Possessing the world’s largest inventory of non-strategic nuclear weapons (NSNW)—an estimated 2,000 warheads. Russia integrated nuclear threats and hypersonic capabilities into conventional military operations, as demonstrated in Ukraine.

With nearly 95 percent of its nuclear triad modernized, Moscow wields a highly flexible and sophisticated arsenal of intercontinental ballistic missiles (ICBM), submarine-launched ballistic missiles (SLBM), strategic bombers, and regional nuclear forces. Its low threshold for nuclear use directly challenges American deterrence credibility, demanding a more dominant regional and global response.

China’s rapid nuclear expansion further upends strategic calculations. By 2025, Beijing’s warhead stockpile surpassed 600 and may well be much larger, with projections suggesting it could double by 2030. Chinese development of road-mobile missiles, ballistic missile submarines, and hypersonic glide vehicles signals an ambition to assert military dominance in the Indo-Pacific. Analysts now warn of an emerging “two-peer” nuclear world, where American US superiority cannot be assumed and extended deterrence in Asia becomes increasingly strained.

North Korea’s evolving nuclear capabilities continue to shape regional security dynamics. With an arsenal exceeding 50 nuclear weapons and advancements in missile survivability, Pyongyang’s strategic posture is increasingly resilient. While its impact remains largely regional, North Korea’s growing ties with Russia, including possible technology transfers and military cooperation, contribute to broader instability in the Indo-Pacific.

Given the United States’ close alliances with Japan, South Korea, and other regional partners, ensuring effective deterrence is crucial. The unpredictability of North Korean decision-making reinforces the need for American capabilities that not only deter conflict but effectively manage escalation dynamics to safeguard stability in the region.

Meanwhile, Iran edges closer to nuclear threshold status, posing a growing challenge to American interests and regional stability. Its advanced enrichment program, expanding missile forces, and deepening military partnerships with Russia alarm both Middle Eastern powers and the broader international community.

Beyond the nuclear threat, Iran’s influence extends across the region, fueling instability through its support for proxy forces in Iraq, Lebanon, Syria, and Yemen. Its control over key maritime chokepoints, including potential disruptions to shipping lanes near the Suez Canal and the Strait of Hormuz, threatens global trade and directly impacts allies that are reliant on energy exports and supply routes. President Trump’s successful bombing of the Houthis has apparently ended that threat to shipping, but the Houthis were but one Iranian proxy.

Heightened tensions with Israel and Sunni Arab nations increases the risk of escalation, raising fears of a nuclear breakout that could spark an arms race across the Middle East. Securing dominance in this theater requires more than rhetoric; it demands credible, layered deterrence, reinforced regional security architectures, and responsive military capabilities.

Despite these growing threats, the current US nuclear posture remains heavily focused on modernizing the strategic triad of ICBMs, SLBMs, and bombers. While essential, this modernization effort falls short of meeting the complex demands of regional deterrence. Delays, budget overruns, and the absence of credible theater-range nuclear options—such as the nuclear sea-launched cruise missile (SLCM-N)—erode deterrence credibility and open dangerous gaps adversaries can exploit.

Reasserting strategic dominance requires closing these vulnerabilities with urgency. The United States must accelerate the development and deployment of theater-range nuclear systems, including the SLCM-N and advanced hypersonic platforms. Modernizing the non-strategic nuclear arsenal will enable the US to counter China and Russia’s flexible regional nuclear strategies with equivalent or superior options.

Hardware alone will not deliver dominance. Integrated operations across nuclear and advanced conventional forces must be enhanced to manage escalation more effectively. Upgrading nuclear command, control, and communication (NC3) systems is critical to ensuring rapid, reliable decision-making and demonstrating resilient deterrent capabilities to adversaries.

Strengthening alliances must be an equally central pillar. Reinforcing extended-deterrence commitments through deeper consultations, expanded joint planning, and forward deployment of theater-range assets can provide vital reassurance to NATO and Indo-Pacific allies. A dominant US nuclear posture must visibly support allied security, preempting adversary coercion and preventing pressures on proliferation among partners.

Diplomatic initiatives must also evolve. Arms control dialogues with China and Russia are necessary, but they must be pursued from a position of strength—not accommodation. Risk-reduction measures, nonproliferation efforts, and regional security dialogues aimed at curbing North Korean and Iranian ambitions remain essential to managing global escalation risks.

Throughout history, the United States repeatedly adapted, asserted leadership, and reshaped global security in response to transformative threats. Today, as geopolitical tensions escalate and adversaries enhance their nuclear capabilities, passive deterrence is no longer enough. America must reaffirm its strategic dominance.

In this new era of competition, strengthening the American nuclear posture is not optional; it is imperative. The nation’s credibility, alliance cohesion, and global influence rest on a posture that deters aggression, assures allies, and prevails in any escalation scenario. As adversaries refine their arsenals, the margin for error diminishes, and hesitation invites instability.

To safeguard peace, security, and American leadership for generations to come, the United States must transition from deterrence to dominance. The time is now to close critical gaps, advance capabilities, and ensure its nuclear forces remain unrivaled in effectiveness and readiness. The future of global stability hinges on this decisive action.

Brandon Toliver, PhD, serves on the A4 staff of Headquarters Air Force. The views expressed are those of the author and do not reflect the official guidance or position of the United States government, the Department of Defense, the United States Air Force, or the United States Space Force.

From Deterrence to Dominance: Strengthening US Nuclear Posture in a Shifting World was originally published on Global Security Review.

Extended deterrence, commonly known as the “nuclear umbrella,” represents America’s commitment to defend its allies against strategic threats, including the use of nuclear weapons. Since the late 1940s, this policy provides security guarantees to NATO members and Asian allies like Japan and South Korea.

Rising threats from adversaries like North Korea and Iran, coupled with the modernization of arsenals by Russia and China, underscore its continued necessity. Without this safeguard, allies may feel compelled to pursue independent nuclear programs, triggering preventable proliferation that can destabilize entire regions and weaken American influence.

Consider a scenario where the United States’ failure to build a peer theater nuclear capability and public statements are viewed by allies as a reduction in American nuclear commitments in East Asia. Japan, confronted by an assertive China and threatening North Korea, initiates a covert nuclear program, leveraging its advanced civilian nuclear technology and plutonium reserves. Constitutional constraints notwithstanding, mounting public anxiety could drive Tokyo toward its first nuclear test.

South Korea, facing similar security vulnerabilities, revives its previously dormant nuclear ambitions. Taiwan, under existential threat from China, sees nuclear capability as essential for survival. Alarmed by these developments, President Xi Jinping orders an accelerated attack on Taiwan and, potentially, attacks targets in South Korea and Japan to preempt support of Taiwan.

This ripple effect would yield devastating global repercussions. The Treaty on the Non-Proliferation of Nuclear Weapons (NPT), a cornerstone of nonproliferation, ceases in relevance. Nations such as Saudi Arabia, Turkey, Germany, and Poland might explore nuclear options. With more nuclear actors in play, risks increase as a statistical probability. Diplomatic and economic instability would likely surge, potentially fracturing alliances, crippling foreign investment, and destabilizing global markets.

Extended deterrence is not merely about preventing proliferation; it provides substantial military and economic benefits as well. American allies contribute robust defense capabilities, hosting critical strategic bases essential for American operations. South Korea’s military fought alongside American forces in every conflict since Vietnam, while Japan’s formidable naval and air capabilities enhance American strategic flexibility. European NATO allies provide indispensable missile defense and air operations infrastructure, reinforcing American global power projection.

Economically, the nuclear umbrella fosters stability, encouraging foreign direct investment from treaty allies like Japan, Germany, and South Korea—three of the top investors in the US. This security framework ensures mutual prosperity and deepens economic interdependence, strengthening not just trade partnerships but long-term strategic relationships. South Korea, the world’s 14th-largest economy, thrives under this arrangement, further reinforcing cross-border trade and investment.

Upholding extended deterrence demands a long-term investment of American resources, ensuring stability across NATO. Allied nations pledged to meet defense spending commitments, emphasizing the principle that collective security thrives on shared responsibility. Given that the US allocates just under three percent of its gross domestic product (GDP) to defense, committing at least two percent is a reasonable expectation.

Eleven nations met the two percent target in 2023, up from just four in 2017. President Trump’s pressure campaign on NATO defense spending is working. If every NATO nation adhered to the two percent minimum, the alliance’s total defense budget would rise by over $100 billion annually, reinforcing military capabilities, strengthening infrastructure, and fortifying global stability.

More than just a financial obligation, honoring these agreements is fundamental to sustaining NATO’s unity and trust. Increased investment not only bolsters collective security but also eases the strain on the US, which continues to shoulder the responsibility of protecting Western civilization from instability.

Extended deterrence long served as the backbone of global stability, shaping a world where security, military cooperation, economic prosperity, and nuclear nonproliferation are upheld. Stability is not self-sustaining; it demands vigilance, action, and unwavering commitment. NATO’s legacy proves this repeatedly. From coalition forces uniting in Kosovo to prevent ethnic cleansing, to NATO-led air campaigns in Libya that dismantled an oppressive regime, alliance members stood together in moments of crisis. Joint operations in Afghanistan, where NATO countries fought side by side for nearly two decades, showcased the strength of shared commitment. Even today, as NATO fortifies defenses in Eastern Europe, the principle remains unchanged. Security is only as strong as the unity behind it.

NATO’s Article 5 is more than a pledge; it is a promise that must be upheld through action. Security is not theoretical; it is built on resources, strategy, and cooperation. The deterrence piggy bank needs deposits, not just withdrawals. If allies fail to uphold their commitments, the burden on the US becomes untenable.

The stakes could not be higher. Geopolitical tensions are rising, nuclear threats are evolving, and adversaries are watching for cracks in the foundation. The American nuclear umbrella remains a pillar of international security, but it is only as strong as the resolve behind it. Allies must step up because if they do not, the rain will come, and they will find themselves unprotected in the storm.

Brandon Toliver, PhD, serves on the A4 staff of Headquarters Air Force. The views expressed are those of the author and do not reflect the official guidance or position of the United States government, the Department of Defense, the United States Air Force, or the United States Space Force.

The Nuclear Umbrella: Reassurance or Relic in a Shifting World? was originally published on Global Security Review.

Secretary Hegseth, a veteran with combat experience in Iraq and Afghanistan, emerged from a military culture defined by counterinsurgency warfare, rapid technological adaptation, and constrained rules of engagement. His formative years were shaped by the leadership of prominent figures like General (Ret.) David Petraeus and General (Ret.) James Mattis, who emphasized adaptive leadership, decisive action, and strategic communication. The norms of that era often prioritized minimizing civilian casualties, leveraging asymmetric warfare, and coalition-based operations. Given this background, Hegseth’s emphasis on restoring a warrior ethos and projecting unyielding strength likely stems from his own military experiences and the influential leaders who shaped his perspective.

Hegseth’s message signals a deliberate shift away from the strategic ambiguity that may embolden adversaries. The emphasis on deterrence through strength suggests a belief that Russia’s nuclear brinkmanship, China’s rapid arsenal expansion, and North Korea’s unpredictability stem from a perception of American hesitancy. One might observe that the concept of strategic ambiguity, once hailed as a nuanced tool of deterrence, now appears as outdated as the punch-card computers that once calculated nuclear trajectories.

This shift reflects a growing concern about the credibility of extended deterrence and the need for more explicit signaling of American resolve. By modernizing the nuclear triad and reaffirming America’s willingness to use force, the Pentagon aims to reinstate fear as a core pillar of deterrence.

The emphasis on reviving the warrior ethos implies that nuclear deterrence must be as much about mindset as it is about capability. It is striking to note that the last time a Secretary of Defense emphasized a similar warrior ethos, the world was still reeling from the Cuban Missile Crisis, a stark reminder of the high stakes involved. The focus on a warfighting mentality suggests a move away from the bureaucratic approach that dominated nuclear policy in recent decades. It is a move toward a more operational and combat-focused posture.

The intent may be to move away from a risk-averse approach, ensuring that warfighters at all levels understand nuclear deterrence as an active, rather than passive, responsibility. This shift could result in more frequent readiness drills, a recalibration of nuclear employment thresholds, and strategic force posturing that prioritizes offensive capabilities over restraint.

China is projected to reach nuclear parity with the US by 2035, while Russia continues aggressive arsenal expansion and hybrid warfare tactics. Hegseth’s directive appears motivated by a desire to prevent a world where nuclear deterrence is no longer dictated by American supremacy. This shift away from the established norms of strategic restraint is a necessary adaptation to a multipolar world, or it could be a dangerous escalation that precipitates a new arms race.

There is an inherent tension between maintaining strategic dominance and fostering international stability. Modernization efforts—accelerated intercontinental ballistic missile production, hypersonic weapons, and a stronger nuclear-capable bomber fleet—align with an intent to sustain America’s dominant position before near-peer threats fully materialize.

The call to rebuild the military by rapidly fielding emerging technologies may suggest a strategic push toward AI tools that enable improved nuclear command and control, quantum-resistant encryption, and space-based early warning systems. The intent behind these investments appears twofold. First, there is a desire to ensure American nuclear forces cannot be neutralized by cyber, space, or electronic warfare. Second, there is a desire to establish deterrence dominance through superior technological integration before adversaries close the gap.

If this is a return to a bold, George S. Patton-style of leadership, where decisive action and unwavering resolve are paramount, it could also risk a dangerous overemphasis on military solutions at the expense of diplomacy. This approach raises crucial questions about the balance between technological innovation and strategic prudence.

Hegseth’s message reaffirms commitment to American allies, signaling that extended deterrence remains a central policy. The intent appears to be preempting concerns of American disengagement from NATO and Indo-Pacific security commitments while simultaneously warning adversaries, especially China, that American nuclear resolve is non-negotiable. Some may assume that a more aggressive posture inherently breeds instability, paradoxically, it could also create a more stable balance of power by clearly defining red lines and deterring potential aggression.

This strategy hinges on the assumption that adversaries will respond rationally to demonstrations of force. This could translate into increased nuclear deployments to allied territories; stronger trilateral deterrence initiatives between the US, UK, and Australia (AUKUS); and a renewed focus on NATO’s nuclear-sharing agreements to counter Russian regional threats.

Secretary Hegseth’s “Message to the Force” signals an intentional and urgent shift in US nuclear strategy—one motivated by a belief that deterrence is eroding and must be aggressively rebuilt. Whether through new weapons systems, a hardened warrior mindset, or the integration of cutting-edge technology, the modernization push under his tenure will likely define the next era of American nuclear policy.

Brandon Toliver, PhD, serves on the A4 staff of Headquarters Air Force. The views expressed are those of the author and do not reflect the official guidance or position of the United States government, the Department of Defense, the United States Air Force, or the United States Space Force.

Hegseth’s Doctrine: A Rebirth and Redefinition of American Deterrence? was originally published on Global Security Review.

ICBM EAR Report for 22 Feb 2025 was originally published on Global Security Review.

In 1966, he directed the establishment of the military-controlled Chung Shan Institute of Science and Technology (CSIST) and made nuclear weapons research a primary focus. Over the next two decades, Taiwan aggressively pursued a clandestine nuclear weapons program. Its remarkable advancement came to an abrupt halt in 1988 because of one Taiwanese scientist who was also a Central Intelligence Agency informant. What if that had not happened?

Continuing tensions in the Taiwan Strait along with conflicts in Ukraine and the Middle East have renewed conversations about the validity of the extended deterrence provided by the United States. Understandably, states may doubt the veracity of these current security guarantees.

We offer a counterfactual historical analysis to assess the traditional tradeoffs between a state’s right to nuclear weapons for security versus the established US foreign policy commitment of extended deterrence, which costs the United States significant human and material resources. If Taiwan was permitted to build a successful nuclear weapons program, what would the security environment in the Taiwan Strait look like today? Could the United States have prevented its own security dilemma with China, or would it have become more precarious? Can a what if scenario help inform a what’s next scenario for American foreign and nuclear policy?

To begin the analysis, a baseline understanding of nuclear postures is needed. Vipin Narang offers a simple construct for nuclear posture. It is the combination of a state’s capabilities, employment doctrine, and its command-and-control structure.

In his book, Nuclear Strategy in the Modern Era, Narang introduces a framework that systematically explains the nuclear posture choices made by regional powers based on two variables: whether there is a third-party patron able to defend them and the proximity of a conventionally-superior threat. It then applies several unit-level variables when the security environment is indeterminate.

Moving through his decision tree (below), regional nuclear powers fall into three potential postures: catalytic, asymmetric escalation, or assured retaliation.

A catalytic posture depends on a third-party patron to intervene and de-escalate the situation before nuclear exchange happens.

An assured retaliation posture is assumed when a nation can keep its nuclear forces secure from a potential disarming first strike and assure a costly retaliation on the aggressor. An asymmetric escalation posture is designed to deter conventional attacks by credibly showing the ability and willingness to escalate to nuclear first use options at first sign of conventional attack.

With the groundwork laid, it is possible to examine the PRC’s nuclear posture and posit a hypothetical Taiwan posture. Historically, China maintained an assured retaliation posture. According to the Federation of American Scientists, by 1970, China had approximately 50 nuclear weapons and by 1980 that number was 200. It maintained a small arsenal for over 30 years while maintaining its assured retaliation posture. It was an arsenal that Taiwan could counter, if allowed to continue to build its own weapons.

There are some assumptions required to run through this historical counterfactual. First, Taiwan would have been able to start developing nuclear weapons by 1990. When program shutdown began in January of 1988, Taiwan was assessed to be “at least a year or two away from having a three to six-month breakout capability.” Second, Taiwan would have been able to match a similar pace of production that China achieved from 1964-1979.

Third, China would not have intervened militarily to dismantle Taiwan’s nuclear program. This assumption is based on protections by the United States remaining intact, creating enough deterrence at a time when the People’s Liberation Army, though nuclear capable, was relatively weak.

Fourth, the great powers would not have engaged in counterproliferation efforts against Taiwan. In reality, this was not the case.

Fifth, American concerns over political instability in Taiwan were more muted, which reality would later vindicate.  Again, there were always real concerns with Taiwanese autocracy.

Accepting these assumptions and following the above framework, we suggest Taiwan could have fielded approximately 50 nuclear weapons as early as the mid-1990’s. This nuclear arsenal would have been sufficient to achieve an asymmetric escalation posture, which is best suited and specifically designed to counter conventional attacks from a conventionally superior neighbor.

To be credible, Taiwan would need to declare that any attempt to unify Taiwan and China by force will lead to a nuclear response. With this posture Taiwan would improve its ability to use asymmetric escalation to deter by denial—using nuclear weapons to deny the aggressors military objectives—and deterrence by punishment.

Had Taiwan been able to reveal an asymmetric escalation posture in the mid-1990s, would it have improved the balance of military power, sustained the status quo, and created a more stable security environment? There is no doubt Taiwan could inflict damage and deter a rational actor. Would it have been enough to deter China, who equated its national destiny with unification, including by force? Alternatively, would the revelation of Taiwan’s nuclear program intensify the cross-strait security dilemma by accelerating China’s own potential nuclear expansion? The unknowns of China’s decision calculus perplex even the modern analyst.

If the United States afforded Taiwan the space to develop a nuclear arsenal, would that have absolved America from any security commitments? One might argue the United States may have become more entangled in containing proliferation and a potential cross-strait nuclear war.

Certainly, the Republic of Korea (ROK) would not have appreciated another neighbor obtaining nuclear weapons while it faced its own nuclear-armed adversary. And Japan, given its tenuous history in the region, would likely have been unhappy to see the ROK field nuclear weapons without achieving its own equitable defense.

The discussion of alternative history matters in 2025 because middle states have witnessed what happened with Ukraine—a country without indigenous nuclear capability nor under the umbrella of protection from a third-party patron. Middle states across the world are recognizing that the security guarantees of a nuclear power extend only as far as its national interests.

It is no wonder that Ukraine now seeks a stronger security guarantee in the form of either “nukes or NATO.” And by extension, it’s not surprising that other middle states in comparable situations, like Taiwan, would re-evaluate their trust and confidence in the United States’ security promises. They see the writing on the wall with waning political interest and resources to combat adversaries in a multi-polar world.

Graham Allison observed that the United Kingdom learned, in the late nineteenth-century, rising German, Russian, French, and American navies meant its “two power standard” for naval supremacy was no longer a viable security formula without over-extending its resources. A century later, the United States finds itself in the position of Britain, compelled to re-evaluate its policies as a multipolar world challenges American dominance.

Chief among these policies must be exploring an international security strategy that defines and is faithful to American national security priorities, within available resources, unambiguous, and exploits the broad array of instruments of power. The nation must avoid the mistake of treating everything as a national security priority, rendering nothing a priority. This results in under-resourced and under-supported engagements, which erodes trust and confidence in the United States.

There will be winners and losers if the United States strikes a truly prioritized strategy.  But Thucydides argues that this is the nature of international politics, however unfortunate; the strong do what they can and the weak suffer what they must. However, as the alternative history above suggests, left to their own devices, vulnerable middle states may lean towards obtaining their own nuclear weapons.  Thus, creative new security solutions must replace resource-intensive extended deterrence in those cases, if nuclear non-proliferation remains a top national security priority. 

Kira Coffey is a 2024 Air Force National Defense Fellow and International Security Program Research Fellow at Harvard Kennedy School’s Belfer Center. She is a graduated squadron commander, combat pilot, and China Foreign Area Officer. Her research focuses on Great Power Competition with the People’s Republic of China. 

Ryan Fitzgerald is a 2024 National Defense Fellow and Security Studies Program Fellow at the Massachusetts Institute of Technology. He is a graduated squadron commander and combat pilot. His research focuses on International Relations and Nuclear Deterrence.

Opinions, conclusions, and recommendations expressed or implied within are solely those of the authors and do not necessarily represent the views of the United States Air Force, the Department of Defense, or any other US government agency.

Taiwan’s Nuclear What-If: Implications for U.S. Strategy and Global Security was originally published on Global Security Review.

Prepared by Peter Huessy, President of Geostrategic Analysis and Senior Fellow at the National Institute for Deterrent Studies

Key Takeaways

• Significant Military Budget Increase in Russia: Russia’s defense spending will rise by 25% to 13.5 trillion rubles (~130 billion euros), continuing its high military expenditure trend.
• U.S. Defense Leadership Changes: Senator Marco Rubio has been confirmed as Secretary of State, with several other key appointments, including Peter Hegseth as Secretary of Defense.
• Nuclear Policy and Strategic Posture Adjustments: Discussions on nuclear deterrence focus on the modernization of U.S. strategic forces, balancing deterrence against Russia and China, and the implications of extended deterrence.
• Iran’s Nuclear and Missile Capabilities: Reports indicate Iranian cargo vessels carrying crucial chemical ingredients for missile propellant, raising concerns about Iran’s growing missile capability.
• Ukraine Conflict and NATO’s Deterrence Mission: NATO leaders stress that a Russian victory would severely weaken the alliance’s credibility.
• U.S. Nuclear Strategy and Extended Deterrence Debates: Several officials emphasize the need for a robust and adaptable nuclear strategy to counter emerging threats from Russia, China, and Iran.

International Developments

Russia’s Defense Budget Expansion

• Russia’s military spending will increase to 13.5 trillion rubles, estimated at 7-8% of GDP, its highest post-Soviet military budget.
• Significant investments in modernized nuclear and conventional forces to maintain strategic parity with the U.S. and NATO.
• Russia’s total defense expenditure, when adjusted for purchasing power, rivals European military spending, highlighting its focus on long-term military capabilities.

Iran’s Missile and Nuclear Advancements

• Intelligence sources indicate Iranian cargo ships transporting missile propellant materials from China, raising alarms among Western security analysts.
• Iran continues uranium enrichment, prompting warnings from the UN about Tehran’s growing nuclear capability.

China & Russia’s Nuclear Expansion

• Reports predict that by 2035, China and Russia will collectively hold over 11,000 nuclear warheads, posing a direct challenge to U.S. nuclear deterrence.
• Concerns grow over China’s accelerated nuclear development and its integration into a broader strategic competition with the U.S. and Russia.

Key Strategic Issues on the Horizon

Escalation Risks in Space Warfare

• A RAND Corporation study warns that Russia may escalate conflicts in space early due to its heightened fears of a U.S. first strike.
• The study underscores Moscow’s increasing risk tolerance and potential responses to perceived U.S. threats in space.

Ukraine’s Role in NATO’s Deterrence Strategy

• NATO Secretary-General Mark Rutte warns that a Russian victory would weaken NATO’s credibility, requiring significant investments in deterrence.
• U.S. extended deterrence remains under scrutiny, with debates over whether the Biden administration’s fear of escalation weakened deterrence against Russia.

U.S. Strategic Nuclear Force Modernization

• The U.S. Air Force confirms that the Sentinel ICBM and B-21 Raider will remain the cornerstone of nuclear deterrence until at least 2050.
• Discussions continue over potential mobile ICBM systems, expanded long-range bombers, and additional dual-use aircraft to ensure nuclear survivability.

‘Iron Dome for America’ Missile Defense System

• President Trump’s proposal for a nationwide missile defense system—similar to Israel’s Iron Dome—is gaining momentum.
• Critics call it overly ambitious, but proponents argue that it is essential to counter growing threats from China, Russia, Iran, and North Korea.

Key Events

Upcoming NIDS Seminar (January 31, 2025)

• Speakers: Shoshana Byren (Jewish Policy Center) & Ilan Berman (American Foreign Policy Council).
• Topic: Iranian security threats to the U.S. and its allies, with a focus on Iran’s nuclear and missile capabilities.

NIDS conference at Truman Library (August 6, 2025)

• A 4-star USAF officer will serve as the featured speaker.
• Expected discussions on extended deterrence, strategic stability, and nuclear policy.

Conclusion

The ICBM Ear report for the week of January 23, 2025, highlights key developments in U.S. nuclear policy, global security challenges, and strategic deterrence issues. With Russia’s increasing military budget, Iran’s missile advancements, and China’s nuclear expansion, the U.S. faces a growing multipolar nuclear environment. Discussions on extended deterrence, arms control, and new strategic capabilities will shape U.S. defense posture in the coming years. The upcoming TRIAD Symposium and NIDS events will provide further insights into these critical security matters.

ICBM EAR for 23 Jan 25 was originally published on Global Security Review.

A driving factor is the rising nuclear threat posed by China, North Korea, and Russia. Such a threat requires effective nuclear deterrence. Another concern is continuing doubts as to whether America’s extended deterrence is reliable in a serious international crisis or a major shooting war.

It is true that when authoritarian states brandish their nuclear arsenals for coercion, repeatedly threatening nuclear attack, any nation would be concerned and look to its guarantor of security for help. Unfortunately, the United States is proving slow to field the kind of arsenal that can not only deter or defeat aggression against itself, but also provide that same capability for almost three dozen allies.

The US is now in a position where it must modernize and expand its own nuclear arsenal and right-size those numbers to sustain dynamic parity with adversaries. Legally and morally, there is indeed an inescapable duty to deter. For Japan and South Korea, that duty will be met by the United States or themselves.

Nuclear participation by America’s allies in Asia would be in direct contravention to US policy, and would violate both the letter and the spirit of the 1970 Non-Proliferation Treaty (NPT), but it would certainly prove understandable. Australia, Japan, and South Korea all signed the treaty, but a voracious and aggressive China and North Korea are proving a real threat to all three states.

Rather than take a position for or against ally nuclear participation, an overview of the main arguments on both sides of the issue are instructive.

Pros

First, recall that Australia, Japan, and South Korea all have a level of experience with the nuclear issue. Japan, of course, faced atomic bombings of Hiroshima and Nagasaki. But, as Japan up-arms to deter China and North Korea, Tokyo might decide to field its own nuclear weapons.

Southern and western Australia were the sites of over a dozen British nuclear weapon tests between 1952 and 1963. This is a fact too few understand.

South Korea had its own nuclear weapon research and development program during the Cold War, which was abandoned because of American pressure. South Korea does rely on nuclear power for its generation of electricity.

Second, note that these American allies do possess civilian nuclear power industries, sophisticated militaries, sizable economies, and advanced science and technology capabilities. All three countries could build nuclear weapons in relatively short order. On the positive side, the fielding of Australian, Japanese, and South Korean nuclear forces would make aggression far more complicated for China and North Korea.

The inclusion of allied nuclear forces would disperse and diversify the collective nuclear deterrent available for employment and increase the number of targets China or North Korea must strike in a conflict. Allied nuclear participation is also an alternative to overseas nuclear basing agreements, like those that existed during the Cold War. Given the lack of available American weapons, such an arrangement could prove very beneficial.

Lastly, nuclear participation would put an end to the endless debate over the credibility of  American extended deterrence. Rather, the focus would turn to integrating nuclear forces in the event of a conflict.

Cons

There are some well-known arguments for continued nuclear nonproliferation. They include the longtime prohibition in US policy and the NPT prohibition against it. There are also pragmatic concerns.

First, if a country were to withdraw from the NPT, although allowed by Article X, it would create significant diplomatic tensions between the US and the country withdrawing from the treaty. American sanctions could significantly harm the economy of Australia, Japan, or South Korea.

Second, any democratic state pursuing nuclear weapons would undermine Western efforts to halt Iran’s nuclear weapons development. Worse, it could open the floodgates of nuclear proliferation among states that are certain to prove less responsible with those weapons.

Third, China might see the pursuit of nuclear weapons by American allies as a sufficient reason to launch a “defensive” nuclear strike. China’s “active defense” strategy clearly supports the use of preventive attacks.

Fourth, the Nuclear Supplier’s Group would end all support to the civilian nuclear programs of Australia, Japan, and/or South Korea. Such a decision would cause great difficulty for power generators.

Conclusion

For Australia, American promises and the continent’s geographic position may prove sufficient to prevent a move to a nuclear weapons program. For Japan and South Korea, the threat is much closer. How these countries evaluate the threat is yet to be determined. They are signaling the United States that they want stronger assurances of American commitment.

Such assurance will prove difficult for the United States for many reasons. Neither China nor North Korea should take for granted that America’s allies will remain under the nuclear umbrella. It is only because of flagrant aggression that South Korea, and most recently, Japan, are even talking about the need for indigenous nuclear forces.

Joe Buff is a Senior Fellow at the National Institute for Deterrence Studies. Views expressed are his own.

The Pros and Cons of Nuclear Participation in the Pacific was originally published on Global Security Review.

Key Essays:

1. Extended Deterrence and No First Use Policy:
   • The Nobel Peace Prize was awarded to Nihon Hidankyo, emphasizing nuclear abolition.
   • The U.S. policy of extended deterrence involves the potential use of nuclear weapons in response to conventional, biological, or chemical attacks.​
   • The Biden administration considered a “No First Use” policy, which could undermine the U.S. extended deterrent strategy.​
2. Nuclear Security Challenges:
   • The U.S. faces nuclear threats from China, North Korea, Russia, and Iran.
   • Significant investments in both conventional and nuclear forces are necessary.​
   • The U.S. must address the coordinated campaign of unrestricted warfare by these nations.​
3. Cost of Nuclear Modernization:
   • The U.S. plans to spend $1.7 trillion over the next 30 years on nuclear deterrence.​
   • Modernization is essential to replace aging systems like the MMIII ICBMs, B52 and B2 bombers, and Ohio-class submarines.​
   • The annual cost of modernization is around $19 billion, which is 3.5% of the current defense budget.

Quotes of the Week:

• “President Zelenskyy says Ukraine expects N. Korean troops to be deployed in battlefield in few days” and also sees the choice between joining NATO or going nuclear.
• Congressman Don Bacon: Emphasized the need to strengthen U.S. nuclear command and control due to the Russia-China alliance.​
• Sen. Mike Rounds: Highlighted the importance of preparing for the B-21 stealth bomber at Ellsworth AFB.​
• Noah Robertson: Reported on China’s rapid nuclear arsenal expansion.​
• Wang Zhen: Criticized the U.S. for misrepresenting China’s nuclear development.

Strategic Developments:

• Iran’s Nuclear Ambitions: Some essays support Iran acquiring nuclear weapons to establish deterrence against the U.S. and Israel.
• China’s Nuclear Strategy: China maintains a minimum deterrent strategy and proposes a “No First Use” treaty.

Budget Comparisons:

• Medicaid Costs: The cost of Medicaid to illegal aliens over three years is $16.2 billion, nearly equal to the annual cost of U.S. nuclear modernization platforms for FY25 ($16.4 billion).​

Important Commentary:

• AEI Essay: Urges the next U.S. president to address the aging nuclear arsenal and consider stop-gap measures to mitigate long-term issues.​
• Chinese Disarmament Stance: China calls for the U.S. to stop misrepresenting its nuclear policy and emphasizes its no-first-use stance.​

To read the report visit the Global Security Review ICBM EAR report.

​

ICBM EAR Report – Summary for October 25th was originally published on Global Security Review.

NATO’s Nuclear Planning Group also provides participating allies a forum to discuss and develop the alliance’s nuclear policies, demonstrating a unified view on nuclear weapons. Today, six of NATO’s 30 European allies store nuclear weapons in their countries. These sites are vital to NATO’s strategic deterrence posture. With the end of the Cold War, NATO made the proper choice to reduce the stockpile of nuclear weapons in Europe from more than 5,000 in 1991 as a means for building goodwill and assurances with Russia.

However, the current state of NATO’s nuclear posture and its ability deter aggression is seriously weakened. First, recent British failures with their Trident submarine ballistic missile forces is a major concern for NATO. If the United Kingdom’s (UK) single nuclear deterrent appears unreliable, then British leaders must look to expand the nuclear arsenal beyond the four submarines they currently field.

Downplaying recent failures is a mistake. Indeed, British Trident missile failures are leading defense experts to call for radical changes in the UK’s deterrent posture. While the United Kingdom is increasing the size of its nuclear stockpile, the UK should no longer rely on its single nuclear system to deter aggression. Developing an additional warhead and delivery system to ensure the success of this no-fail mission is the right decision. With Russia making overt threats against the United Kingdom, maintaining a visible and credible nuclear deterrent is not only vital for British survival but for NATO’s survival.

French President Emmanuel Macron’s recent nuclear-use declaration appears to undermine alliance nuclear deterrence. While France does not participate in NATO’s Nuclear Planning Group, the alliance does rely on France’s strategic weapons to deter aggression.  President Macron stating that France will only employ nuclear weapons to defend its interests creates doubt among alliance members.

Finally, the ongoing political turmoil in the United States is causing serious concerns among NATO member-states. Looking beyond political rhetoric during an election year, NATO should be more concerned with the United States’ ability to modernize its nuclear forces. American adherence to a defunct arms control treaty and a deemphasis on the utility of nuclear weapons leaves the US unable to produce nuclear weapons at the speed and scale required to meet today’s security environment.

Reports concerning the high costs of manufacturing plutonium pits, largely due to divestment of manufacturing capability, threatens to create undue delays in the modernization programs which will place the country and NATO at risk. With British failures, French questionable commitment, and American modernization struggles, NATO’s nuclear deterrent appears hollow. It is no wonder Germany and Turkey are engaged in political discussions surrounding the pursuit of an independent nuclear deterrent.

Current realities require NATO to make a serious assessment of its nuclear deterrence strategy.  For instance, NATO’s continued pursuit of arms control limits its deterrence strategy. And with Russia claiming 95 percent modernization of its nuclear forces, NATO’s limited nuclear force places the alliance at a serious strategic disadvantage.

Moreover, the Nuclear Non-proliferation Treaty (NPT) fails to fulfill its intent as more nations seek to acquire nuclear weapons or grow their current arsenals. While NATO made significant strides in global stability through nuclear reductions and adherence to the NPT and other arms control agreements, NATO’s adversaries violate these agreements at will to gain strategic advantage.

NATO needs to reverse course from the “three nos” from the 1990s to policies that increase the alliance’s credibility. Allies must say yes to reintroducing strategic weapons across NATO territory. Moreover, more allies accepting a direct role in nuclear deterrence will go far in addressing the “burden sharing” question.

Member-states could meet the 2 percent defense spending requirement, which could support nuclear deterrence. Demonstrating a willingness to support nuclear sharing by dispersing nuclear capabilities and forces throughout the European theater would silence burden-sharing critics.

Since these weapons would remain under US or UK control, NATO would continue to abide by arms control treaties. While there would undoubtedly be objections from that anti-nuclear groups or those who want their nations to join the Treaty on the Prohibition of Nuclear Weapons, today’s strategic environment requires NATO to pursue a realistic nuclear strategy that will address threats from Russia and emerging nuclear powers while sharing the deterrence burden across the alliance.

When the next Secretary General of NATO takes the helm, the new leader should state, “As long as nuclear weapons exist and hostile powers threaten the alliance, NATO will remain a nuclear alliance and maintain a robust deterrent shared by member-states.” Possessing a credible, reliable, survivable, and redundant strategic deterrent, shared by all allies, is how NATO deters future conflict.

CDR (Ret.) Todd Clawson is a Fellow at the National Institute for Deterrence Studies. Views expressed in this article are the author’s own. 

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NATO’s Fledgling Nuclear Deterrence was originally published on Global Security Review.

Central to the concept of inhibition is the idea that the US is willing to go to great lengths to prevent the proliferation of nuclear weapons, even at the expense of strained diplomatic relations or the imposition of sanctions. This commitment was evident in American interactions with both adversaries and allies, as seen in its efforts to dissuade countries like Iran and North Korea from pursuing nuclear weapons. Inhibition failed in the latter case and may soon fail in the former, but the lack of proliferation by American allies are cases of success.

The Pragmatic Approach of Inhibition

Historically, the United States was always willing to engage with other nuclear powers, even adversaries such as the Soviet Union, to advance shared inhibition goals. The 1963 Nuclear Test Ban Treaty discussed by both the United States and Soviet Union before and after the Cuban Missile Crisis, was understood as an inhibition tool. As Marc Trachtenberg notes,

A test ban, the Soviets would be told, would mean that “there would be no additional nuclear powers in our camp.” The Russians, for their part, would prevent allies from building nuclear forces. And these commitments would be linked: the United States would “take responsibility in respect to non-dissemination with relation to those powers associated with it, if the Soviet Union is willing to take a corresponding obligation for the powers with which it is associated.”

This pragmatic approach, characterized by a mix of cooperation and competition, highlights the adaptability of the inhibition strategy in the face of evolving geopolitical dynamics. Ultimately, the US is willing to work with either friend or foe, to pressure, coerce, and threaten nascent nuclear states, to include both allies and adversaries, to keep them non-nuclear.

The Role of Extended Nuclear Deterrence

Extended nuclear deterrence, a key component of American grand strategy, refers to the United States’ commitment to defend its allies with nuclear weapons, if necessary. This commitment serves as a crucial aspect of the security assurances provided by the US to its allies under the nuclear umbrella, reinforcing the broader framework of alliances that underpin global security. However, the credibility of American extended nuclear deterrence is under scrutiny, particularly in light of doubts about the United States’ willingness to prioritize the defense of its allies over its own interests.

The United States’ willingness to trade Los Angeles for Seoul, for example, raises concerns about the reliability of American security assurances and the potential impact on its inhibition efforts. Such doubts not only affect the perception of American commitment to its allies but also raise concerns about the effectiveness of extended deterrence in supporting the broader strategy of inhibition. As such, ensuring the credibility of extended nuclear deterrence is crucial for maintaining global stability and preventing nuclear proliferation.

Reevaluating Kenneth Waltz’s Proposition

Kenneth Waltz’s proposition that more nuclear states can lead to a safer world raises profound questions about the nature of nuclear deterrence and international security. In a world where South Korea is concerned about American security commitments, they may consider proliferating nuclear weapons to ensure they have a credible deterrent against North Korea. They may come to the belief that more is better and develop their own nuclear arsenal in hopes of obtaining more security. However, the complexities of nuclear proliferation and the risks associated with additional nuclear-armed states suggests that Waltz’s argument may not hold true. The proliferation of nuclear weapons introduces uncertainties and escalatory risks that could destabilize regions and increase the risk of nuclear conflict rather than decrease the risk.

A scenario in which South Korea acquires nuclear weapons could potentially strengthen North Korea’s resolve to consider early nuclear weapons use in conflict, compensating for weaknesses in its conventional military capability. This is precisely the kind of hypothetical situation that prompted the United States to adopt a policy of extended deterrence alongside the grand strategy of inhibition. There is a concern that when the US (or any nuclear state) faces an adversary lacking parity in escalation capabilities, that adversary might resort to early nuclear weapons use to compensate for strategic shortcomings. However, testing an American response to nuclear attack is a risky endeavor fraught with the possibility of further escalation.

Sustaining the Strategy of Inhibition

Instead of advocating for a proliferation-friendly approach, it is imperative for the United States and the international community to continue their efforts to inhibit nuclear proliferation. This includes diplomatic engagement, economic incentives, and, when necessary, coercive measures to dissuade states from acquiring nuclear weapons. The risks of nuclear proliferation far outweigh any potential benefits, and concerted efforts to prevent it remain essential for global security and stability.

Despite these challenges, the sustainability of the inhibition strategy remains feasible. The key lies in reaffirming American commitment to its allies and maintaining a credible deterrence posture. This requires not only a clear and consistent articulation of American security guarantees but also investments in conventional military capabilities and diplomatic efforts to address the underlying security concerns of allies. The US must continue to craft convincing strategic narratives regarding its commitment to allied security via maintaining escalation dominance, nuclear superiority, and narrative control.

Furthermore, the US can leverage its alliances and partnerships to reinforce norms against nuclear proliferation. By working closely with its allies and engaging with potential nuclear aspirants through dialogue and diplomacy, the US can continue to promote the goals of inhibition while ensuring the credibility of its extended nuclear deterrence.

Conclusion: Upholding the Principles of Inhibition

The United States’ grand strategy of inhibition is a linchpin of American foreign policy and is rooted in the belief that preventing nuclear proliferation is crucial for global security. While recent debates on the credibility of American extended deterrence raise valid concerns, the strategy of inhibition remains not only relevant but imperative in today’s world.

The risks posed by nuclear proliferation far outweigh any perceived benefits, making it essential for the US and the international community to continue their efforts to inhibit nuclear proliferation. By reaffirming its commitment to allies, maintaining credible deterrence, and engaging diplomatically with potential proliferators, the US can uphold the principles of inhibition and mitigate the risks associated with nuclear proliferation. In doing so, the US will not only safeguard its own security but also contribute to a safer and more stable world.

Aaron Holland is an Analyst at the National Institute for Deterrence Studies. Views expressed in this article are the author’s own. 

Nuclear Challenges: Inhibition and Extended Deterrence was originally published on Global Security Review.