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.

These unmanned and precision attacks targeted strategic locations, ranging from early warning radar sites to critical military installations. They did not provoke the feared nuclear response. Instead, these operations exposed a new threat calculus where persistence, precision, and the power of perception are paramount.

Recent analyses suggest that such drone operations contributed to shifting risk assessments within adversary states, where even a 10 percent to 15 percent error in perception could lead to miscalculation. American nuclear strategists now contend with an urgent need to rethink deterrence as the boundary between conventional and nuclear erodes.

Spectral Shifts: Rethinking Strategic Assumptions

For decades, American nuclear strategy hinged on the assumption that any conventional attack on nuclear command and control assets would inevitably trigger a nuclear counter-response. Data from Cold War–era exercises and subsequent real-world incidents reinforced this mindset among defense planners. Ukraine’s repeated drone strikes on sensitive Russian assets, including radar installations integral to Russia’s early warning systems, force a reconsideration of long-held assumptions.

The Kremlin’s response is notably restrained, treating these incursions as manageable costs rather than triggers for nuclear escalation. This strategic restraint, observed in multiple public and classified communications from Moscow, signals that deterrence may now rely less on the brute force of nuclear capability and more on the sophistication of targeting and intent. The takeaway for modern policymakers is that deterrence must now incorporate a broader array of factors, including technology-driven precision and the adversary’s threshold for escalation.

Phantom Impact: Redefining Strategy Beyond Nuclear Might

The era when the primary measure of strategic impact was synonymous with nuclear firepower is ending. Ukraine’s innovative use of low-cost, high-precision drones demonstrates that small platforms can disrupt traditional security calculations. Recent reports from defense think tanks estimate that the unit cost of drone operations is less than 1 percent of what a conventional fighter aircraft mission might cost, yet their operational impact in terms of intelligence and tactical disruption is comparable in key areas.

These drones infiltrate deep into adversary territory and strike high-value military and economic assets once presumed invulnerable. Such operational dynamics challenge the long-standing monopoly of nuclear-armed states over credible homeland threats. American planners must now recalibrate their threat models to integrate non-nuclear options, recognizing that the future of strategic impact is both more economical and more technologically complex than ever before.

Haunted Homelands: The Crumbling Illusion of Sanctuary

During the Cold War, vast distances, natural barriers, and the geographic isolation provided by oceans created the comforting illusion that major powers could enjoy an impenetrable sanctuary. Today, that illusion is crumbling. Ukraine’s drone operations are a vivid demonstration that even regions thought to be well-protected can be penetrated. Attacks targeting Russia’s early warning networks, critical oil infrastructure, and military bases reveal that no area can rest on its laurels.

American infrastructure, ranging from energy grids to communication systems and early warning radars, face elevated risks in an age of highly agile autonomous systems. Consider that the global market for unmanned aerial vehicles is projected to reach nearly $50 billion by 2030. Considering this, there is an immediate imperative to overhaul homeland defense strategies. Rapid response protocols, increased situational awareness, and investment in counter-drone technologies are no longer optional. They are emerging as essential components of modern deterrence.

Phantom Signals: How Optics and Intent Drive Escalation

One of the most remarkable aspects of Ukraine’s campaign is its ability to secure tactical advantages without spiraling into uncontrolled escalation. The success of these drone strikes lies in their careful timing, precision, and measured execution. Ukrainian forces consistently space out operations and meticulously choose targets that convey national resolve without risking mass casualties. This dual messaging, delivering a tangible operational effect while sending a clear political signal, underscores a critical evolution in deterrence thinking.

Today, the optics and perceived intent behind an action can be as decisive as the physical impact. One analysis points out that misinterpretations of strategic intent now pose as much risk of inadvertent escalation as traditional force-on-force scenarios. For the United States, this means that developing clear, well-articulated signaling frameworks is crucial. Such frameworks must enable policymakers and military leaders to assert credible force while avoiding actions that might be misread as provocative by adversaries. In a world where every action is scrutinized and the margins for error are thinning, clarity in communication becomes a cornerstone of modern deterrence.

Ghosts in the Arsenal: Integrating Drones into Deterrence

Drones are transcending their traditional role on the battlefield and are emerging as indispensable strategic assets. Modern unmanned systems serve multiple roles, from surveillance and intelligence gathering to direct precision strikes against key targets. Their integration is revolutionizing how military operations are conducted without risking human life. Moreover, these systems have the added benefit of being less politically charged than manned strike platforms. However, their growing prominence also introduces the potential for miscalculation.

With investments in drone technology doubling over the past decade in many leading militaries, the United States must swiftly incorporate these assets into its overarching deterrence framework. This requires the formulation of robust policies that define the operational limits and acceptable contexts for drone employment, comprehensive training programs for commanders in escalation management, and public messaging that reinforces strategic resolve without escalating tensions. The rapid pace of technological adoption means that the window for effective integration is short, and strategic agility is paramount.

Phantoms of the Future: Recasting Deterrence in the Drone Age

Retaining U.S. strategic credibility in the coming decades will demand an evolution beyond a deterrence model solely anchored in nuclear might. Although nuclear forces remain critical, they are no longer the exclusive instruments that shape adversary behavior in today’s multidomain conflicts. The future of deterrence depends on a seamless strategy where nuclear and non-nuclear capabilities are coherently integrated. This entails developing a comprehensive national doctrine for drone utilization that explicitly defines clear thresholds for action, acceptable target sets, and robust escalation-management protocols. In parallel, efforts must focus on modernizing homeland defenses to counter the threat of long-range, autonomous drone attacks, especially in sectors such as space-based assets, energy, and telecommunications. Data from defense budget analyses show that if every NATO member met the 2 percent gross domestic product defense spending target, the alliance’s budget would increase by over $100 billion annually. Such investments, along with analogous U.S. initiatives to enhance technological resilience, are crucial if deterrence is to remain credible and effective in this new operational environment.

Final Haunting: Embracing the Ghostly Evolution of Deterrence

“Ghosts in the Skies” is not just a metaphor; it encapsulates the profound transformation underway in modern deterrence. Ukraine’s innovative use of drone technology is forcefully redefining the conventional wisdom that has long informed global security policy. This paradigm shift challenges entrenched assumptions and demands a rapid evolution of U.S. military strategy. In an era of hybrid threats and rapid technological change, our global security environment is more complex and interdependent than ever before. The future of deterrence will rely on the capacity to adapt swiftly, integrate non-linear threat responses, and build flexible defense systems that are as agile as the adversaries they are designed to deter. The message for policymakers is clear: embrace this ghostly evolution now, for in the emerging multidomain battlefield every misstep carries the risk of destabilizing not only regional security but also global order.

The transformation in deterrence prompted by Ukraine’s drone operations is a stark reminder that innovation in warfare can render old paradigms obsolete. As nations invest in cost-effective, high-precision autonomous systems, the calculus of deterrence will continue to shift, compelling the United States and its allies to rethink both doctrine and defense spending. In this new era, where even the faintest ghost can upend strategic balance, the ability to adapt and respond with agility will be the true measure of national security.

Brandon Toliver, PhD, serves on the A4 staff of Headquarters Air Force. The views expressed are those of the author alone.

Ghosts in the Skies: How Ukraine’s Drone Tactics Recast Modern Deterrence was originally published on Global Security Review.

Historically, adversaries, ranging from Imperial Japan to Saddam Hussein’s Iraq, badly miscalculated American resolve. This was, in part, because the US did not effectively communicate national will and the country’s ability to generate combat power.

While nuclear deterrence held during the Cold War, a worrisome erosion of America’s nuclear deterrence appears underway. A combination of unilateral cuts to the American arsenal, sluggish nuclear modernization, and “nuclear psychosis” (fear of one’s own nuclear arsenal) likely led Russian President Vladimir Putin to develop an escalate to win nuclear doctrine. The same factors may also contribute to China, Iran, North Korea, and Russia issuing mounting conventional and nuclear threats against the West.

Americans need to remember that escalation dominance is an essential ingredient in effectively maintaining deterrence of adversaries and assurance of allies. Escalation dominance means having the option to retaliate up or down the escalation ladder—at America’s choosing. This means developing and fielding capabilities that at least achieve parity, if not superiority, at each rung of the escalation ladder.

Without the US investing in the needed capabilities for full-spectrum conflict, all-domain escalation dominance, adversaries can study America’s capabilities and identify gaps. They can then develop and execute successful strategies that exploit those gaps. They can also incorrectly believe gaps exist, because of a failure of American messaging. Either way, American deterrence might fail.

The US once understood the art and science of escalation dominance—including how to weigh and manage uncertainties and unavoidable risks. At the most dangerous point in the Cold War, the Cuban Missile Crisis, the US out-thought, outmaneuvered, and overmatched the Soviet Union. Soviet Premier Nikita Khrushchev backed down. President Ronald Reagan successfully escalated an arms race while also waging economic warfare. The Soviet Union collapsed.

America now faces multiple adversaries it must engage across the spectrum of conflict. Both horizontal and vertical escalation are certain. With the potential for conflicts to start in the cyber or space domain, the United States must have the ability to limit damaging incursions and malicious interference, while out-escalating an adversary.

History shows that America’s enemies, whomever they might be, tend to be relentless, brutal, casualty acceptant, and even genocidal. Current events, in conflict zones around the world, prove that this has not changed. Appeasement is as ill-advised today as it was with Nazi Germany and Imperial Japan. Restraint is also as ill-advised now as it was then.

Sound theories of American victory need to be developed. Sound American strategy requires the proper matching of objectives to means. Without these in place, deterrence might not hold.

The stakes could not be higher. Conventional war is still almost always a prolonged and very bloody business, in which civilians are caught in the middle and have no safe refuge. If America’s strategic deterrence ever fails, the homeland might suffer devastating attack. Destruction in Ukraine is a small example of what such destruction could look like.

Nuclear war would likely prove unimaginably worse. Nuclear deterrence demands the ability to respond with proportional retaliatory strikes. It also requires the ability to match enemy escalation. The US cannot allow itself to be self-deterred by either a lack of will or a lack of capability. Self-deterrence is to give license to adversaries.

Yet some in the US continue to advocate for policies that eschew escalation at any cost.  This is a theory of defeat, not victory. Attempts to avoid risks only increase the cost of risk.

Such advocates need to be reminded that bullies will always test those they despise. Saving face and taking safe off-ramps are not a priority. For the US to be unable or unwilling to respond with sufficient force when necessary will only invite further and far worse aggression.

In the Cold War now underway, there is a danger of rapid escalation. To cede the military initiative to adversaries, to abandon America’s time-honored strategic culture of retaining full-spectrum escalation dominance, is to invite a nuclear strike against the nation and/or its allies. Adversary malign-influence campaigning is underway and now pervades American information.  Succumbing to these efforts to convince American society that isolation and pacifism are the nation’s best option is a mistake.

Appeasement never satisfies autocratic aggression. The United States must instead invest in the capabilities required to re-master the art and science of strong-stomached escalation dominance. This will support deterrence of America’s adversaries, assurance of America’s allies, and defense of the homeland. Now is the time to act.

Joe Buff is a Senior Fellow at the National Institute for Deterrence Studies. Views expressed in this article are the author’s own. 

Modern Escalation Dominance Is Essential to Effective Deterrence and Assurance was originally published on Global Security Review.

The intense heat from the explosion would ignite fires, contributing to the destruction of the surrounding areas. The release of radioactive materials from the detonation would pose a significant health hazard to anyone in the vicinity, leading to radiation sickness and potentially long-term health effects.

The impact of the explosion would not only be physical but strategic. Cheyenne Mountain plays a crucial role in the defense of North America. Its destruction would severely impair the United States’ ability to detect and respond to potential threats, including incoming missiles and aircraft following such a strike. The US would be highly vulnerable to additional decapitation strikes on their command-and-control facilities.

Of course, the US would still have its nuclear submarines patrolling the seas. They can launch a retaliatory attack on the president’s order, but the bleak reality is that the homeland would be quite vulnerable. This is obviously a worst case scenario and highly unlikely, but it is important to think about as states strategize about decapitating nuclear strikes against the United States.

 Enhanced Ballistic Missile Defenses

 The threat of nuclear attack remains a significant concern in today’s world. Enhancing ballistic missile defenses (BMD) is crucial for the US to protect against a threat like the one described above. With the nation’s BMD system limited, there is room for significant improvement to defend against sophisticated nuclear attacks.

The United States can enhance its ballistic missile defense systems in several ways. First, the US needs to develop and deploy more advanced interceptor missiles capable of engaging incoming threats at various stages of flight, including boost, mid-course, and terminal phases. These interceptors should be faster, more agile, and have greater accuracy.

Second, the US needs to enhance sensor capabilities, including radar and infrared systems, to improve early detection and tracking of incoming missiles. This includes space-based sensors for early warning and tracking.

Third, the US should consider improving integration and networking of BMD systems to enhance coordination and effectiveness. This includes integrating various BMD systems (such as Aegis, THAAD, and Ground-based Midcourse Defense) and improving communication and data-sharing between systems.

Fourth, the US should develop and deploy countermeasures and decoys to confuse and overwhelm enemy missile defense systems, increasing the likelihood of intercepting the actual warhead. Fifth, the US should continue to collaborate with allies and partners to share technology, intelligence, and resources to enhance overall BMD capabilities and effectiveness. Lastly, the US needs to continue to invest in ongoing research and development to stay ahead of emerging threats and technologies, ensuring the BMD remains effective against evolving missile threats.

Ultimately, strengthening the BMD structure not only protects critical assets but also enhances overall national security. By continuously improving and innovating the United States can stay ahead of adversary nuclear modernization efforts. Demonstrating a clear ability to defend against nuclear strikes can enhance deterrence credibility.

 Directed Energy Weapons

 In addition to traditional BMD systems, the United States should explore the development of satellite-based directed-energy weapons (DEW). These systems, such as lasers or high-powered microwaves, offer several advantages over traditional kinetic weapons. They can engage multiple targets simultaneously at the speed of light with precision accuracy.

Laser technology is seen as the future of space deterrence due to its versatility and effectiveness. Lasers can be used to intercept and destroy incoming ballistic missiles, satellites, or other threats in space. They can also be used for precise targeting and disabling of enemy assets without causing collateral damage.

Satellites equipped with DEWs could revolutionize America’s ability to defend against nuclear threats. By positioning satellites in orbit equipped with DEWs, the United States could establish a first line of defense against incoming nuclear weapons. These satellites could intercept and neutralize nuclear weapons before they reach their targets, providing a critical layer of protection.

DEWs offer several advantages over traditional missile defense systems. They have virtually unlimited magazine capacity, meaning they can engage multiple targets without needing to reload. They also have a much faster engagement time.

Furthermore, DEWs are highly cost-effective compared to traditional missile defense systems, as they do not require expensive interceptors or launch platforms. They also have the potential to be more reliable and less prone to failure, as they have no moving parts and operate using electricity rather than chemical propellants. Of course, the technology is not sufficiently mature to field the weapons suggested.

 Conclusion

 The hypothetical scenario of a Russian SS-27 800-kiloton ICBM striking Cheyenne Mountain highlights the critical need for enhancing ballistic missile defenses. The devastating effects of such an attack underscore the importance of continuous improvement and innovation in BMD technology.

The United States must develop and deploy more advanced interceptor missiles, enhance sensor capabilities, and improve integration and networking of BMDs. Additionally, exploring the development of satellites equipped with directed-energy weapons could provide a revolutionary defense capability against nuclear threats.

Strengthening the BMD structure not only protects critical assets but also enhances overall national security. By investing in research and development and collaborating with allies and partners, the United States can stay ahead of potential adversaries’ nuclear modernization efforts and demonstrate a clear ability to defend against nuclear strikes, enhancing its deterrence capability.

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

Safeguarding Against Catastrophic Threats and Decapitating Strikes was originally published on Global Security Review.