The Indo-Pacific is entering a period of acute strategic imbalance. China’s rapid military modernization across nuclear, conventional, cyber, and space domains has outpaced the ability of regional powers to respond through traditional force buildup alone. While governments often default to expanding conventional capabilities with more ships, missiles, aircraft, and bases, this approach is slow, expensive, and increasingly insufficient against a peer competitor with both scale and nuclear backing. By contrast, forming an Indo-Pacific nuclear alliance offers a faster, more credible way to close the deterrence gap. 

Crucially, this challenge is not just about China. The region faces a multi-nuclear threat environment that includes an increasingly capable North Korea and a resurgent Russia, willing to use nuclear and conventional signaling to shield conventional aggression. The cumulative effect of these actors compresses decision-making time and raises the stakes of deterrence failure. At its core, the argument is about time, credibility, and strategic effect. 

The Time Problem: Conventional Forces Are Slow to Build 

Modern conventional military capability is not something that can be generated quickly. Building advanced submarines, fifth-generation aircraft, integrated air and missile defense systems, or long-range strike capabilities takes years—often decades. For example. Australia’s plan to acquire nuclear-powered submarines under Pillar I will not deliver operational capability until the late 2030s or early 2040s. As a stopgap. rotational deployments and being considered in the interim. However, these do not fully close the capability gap. 

Similarly, scaling up missile production, hardening bases, and integrating joint command systems across the region require sustained industrial mobilization. Western defense industries, particularly in the United States, are already under strain from commitments in Europe and the Middle East. Expanding production lines for precision munitions or advanced systems is constrained by supply chains, workforce shortages, and political processes. 

In short, conventional rearmament is a long game. The strategic environment in the Indo-Pacific, however, is deteriorating on a much shorter time scale. 

A Multi-Nuclear Threat Environment 

Focusing solely on China understates the scale of the challenge. The Indo-Pacific is increasingly shaped by three distinct nuclear pressures: 

• China is expanding and diversifying its nuclear arsenal at a pace not seen in decades, while integrating it more closely with conventional operations. 
• North Korea continues to refine its nuclear weapons and delivery systems, including intercontinental ballistic missiles capable of reaching the United States and regional allies. Kim Jong Un has also signaled a lower threshold for potential nuclear use in a crisis. 
• Russia, while geographically more distant, remains an Indo-Pacific actor through its Far East presence and strategic alignment with China. Its behavior during the war in Ukraine under the shadow of nuclear threats demonstrates how nuclear coercion can enable prolonged conventional conflict. 

This layered nuclear environment complicates deterrence. It is no longer about balancing a single adversary, but managing overlapping deterrence relationships, where escalation in one theater can have cascading effects in another. 

The Deterrence Gap: Nuclear-Backed Coercion 

China’s growing nuclear arsenal fundamentally alters the deterrence equation. While conventional forces can impose costs, they cannot fully offset the coercive power of nuclear weapons. Beijing can leverage its nuclear capabilities to deter external intervention in a regional conflict, particularly over Taiwan, while using conventional forces to achieve fait accompli. North Korea adds a different kind of instability. It has a smaller but less predictable nuclear force, with a demonstrated willingness to engage in brinkmanship. Meanwhile, Russia’s nuclear posture reinforces a broader norm, that nuclear weapons can be used to shield aggression and shape adversary behavior via threats of use. 

This creates a deterrence asymmetry: regional states may possess capable conventional forces, but without nuclear backing, their ability to deter escalation is limited. The United States provides extended nuclear deterrence, but questions about credibility, response timelines, and escalation risks persist, especially as adversaries develop capabilities to target bases in the United States and nuclear command, control, and communications (NC3) systems. 

The Speed Advantage of a Nuclear Alliance 

A nuclear alliance can be established far more rapidly than building conventional parity. Unlike ships or aircraft, nuclear deterrence is not primarily about quantity. Instead, it is about credibility, survivability, and signaling. 

Consider NATO. Its nuclear sharing arrangements allows non-nuclear members to participate in nuclear planning, host nuclear weapons, and integrate delivery systems without developing their own arsenals. This framework was established quickly during the Cold War and endured for decades as a cornerstone of deterrence. 

An Indo-Pacific equivalent could replicate key elements of such an arrangement: 

• Forward deployment or rotational presence of U.S. nuclear-capable assets 
• Nuclear-sharing arrangements with trusted allies such as Japan, South Korea, and potentially Australia 
• Integrated nuclear-planning mechanisms to ensure regional input into deterrence strategy 
• Hardened and distributed basing to enhance survivability 

These steps do not require decades of industrial buildup. They rely on political decisions, alliance coordination, and doctrinal integration. These are areas where progress can be made over years, not decades. 

Credibility Through Integration 

Deterrence is about perception. Adversaries must believe that the costs of aggression will outweigh the benefits. A nuclear alliance enhances credibility in several ways. 

First, it raises the stakes of conflict. If multiple states are integrated into a nuclear deterrence framework, any aggression risks broader escalation. This complicates an adversary’s planning and reduces the likelihood of limited, opportunistic actions. 

Second, it distributes risk and responsibility. Extended deterrence is more credible when allies are actively involved in nuclear planning and posture. This reduces doubts about whether the United States would act alone in a crisis. 

Third, it signals resolve and unity. Formalizing nuclear cooperation sends a clear message, that the region is prepared to escalate, if necessary, rather than relying solely on conventional responses that may be insufficient. 

Cost and Efficiency 

Conventional rearmament is not only slow, but it is extraordinarily expensive. Building fleets of advanced platforms, sustaining them, and integrating them into joint operations imposes massive fiscal burdens. 

A nuclear alliance, by contrast, leverages existing capabilities. The United States already possesses a robust nuclear arsenal and delivery systems. The marginal cost of extending deterrence through alliance structures is significantly lower than building new conventional forces from scratch. 

For middle powers like Australia, Japan, and South Korea, this is particularly important. Attempting to match China’s conventional military growth is economically unsustainable, let alone simultaneously accounting for North Korean and Russian contingencies. A nuclear alliance provides a cost-effective way to achieve strategic balance across these multiple threats. 

Addressing Political and Normative Challenges 

Of course, forming a nuclear alliance in the Indo-Pacific is not without challenges. Non-proliferation norms, domestic political sensitivities, and regional perceptions all complicate the issue. Countries like Japan have strong anti-nuclear culture which is shaped by history. Australia has long positioned itself as a supporter of non-proliferation. Any move toward nuclear sharing or hosting would require careful political management and public communication. 

However, these constraints are not insurmountable. NATO demonstrates that nuclear sharing can coexist with non-proliferation commitments under the Nuclear Non-Proliferation Treaty framework. The key is transparency, adherence to legal obligations, and a clear defensive rationale. Moreover, the strategic environment is changing. As the combined pressures from China, North Korea, and Russia intensify, the political calculus around deterrence may shift accordingly. 

Complement, Not Replacement 

A nuclear alliance is not a substitute for conventional forces. Rather, it is a force multiplier. Conventional capabilities remain essential for day-to-day operations, crisis management, and limited conflicts. 

However, without credible nuclear backing, conventional forces risk being outmatched in scenarios where nuclear-armed adversaries control escalation. The most effective approach is a layered deterrence strategy: 

• Nuclear deterrence to prevent large-scale war and coercion 
• Conventional forces to deny and punish aggression 
• Resilience measures to ensure continuity under attack 

A nuclear alliance strengthens the top layer of this structure, enabling the others to function more effectively across multiple threat vectors. 

Conclusion: Speed Matters in a Multi-Threat Era 

The Indo-Pacific does not have the luxury of time or the simplicity of a single adversary. Conventional rearmament, while necessary, cannot close the deterrence gap quickly enough to match the pace of strategic change driven by China, North Korea, and Russia. 

An Indo-Pacific nuclear alliance offers a faster path to credible deterrence. By leveraging existing capabilities, enhancing integration, and signaling resolve, it can stabilize the regional balance in the near term, while stalling for longer-term conventional investments to mature.  

The choice is not between nuclear and conventional approaches, but between acting quickly or falling behind. In a rapidly shifting, multi-nuclear strategic environment, speed is not just an advantage. It is a necessity. 

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 are the author’s own.

An Indo-Pacific Nuclear Alliance Closes the Deterrence Gap Faster than Conventional was originally published on Global Security Review.

Deterrence does not rest solely on possessing nuclear weapons. It also depends on the assurance that those weapons cannot be neutralized, constrained, or rendered ineffective by an adversary’s ability to maneuver, surveil, or strike first. Geography, therefore, matters. In the emerging strategic environment, Greenland occupies one of the most consequential geographic positions in the world.

Denial as the Foundation of Nuclear Survivability

The survivability of U.S. nuclear forces, particularly the sea-based leg of the nuclear triad, is the cornerstone of strategic stability. Ballistic missile submarines (SSBNs) provide the most secure retaliatory capability precisely because they operate undetected at sea. But stealth is not automatic. Submarines must transit known maritime corridors to reach patrol areas, and those corridors create opportunities for adversary interference.

For U.S. and allied forces operating in the Atlantic and Arctic, two choke points are decisive: the GIUK Gap (Greenland–Iceland–United Kingdom) and the Bear Gap between Greenland and Svalbard. These routes connect the Arctic Ocean to the North Atlantic and serve as the primary pathways for submarines moving between bastion areas and open-ocean operating zones.

If Russian or Chinese submarines could transit these gaps freely, they would be able to threaten NATO SSBNs, target transatlantic sea lines of communication, and position themselves for nuclear or conventional strikes against NATO territory and U.S. nuclear forces. Denying that access—rather than reacting after the fact—is what preserves nuclear survivability. Greenland makes such denial far more feasible.

Greenland as a Strategic Gatekeeper

Greenland’s location enables persistent surveillance, early warning, and anti-submarine warfare operations across the Arctic–Atlantic interface. Sensors, airfields, space and radar infrastructure, and command-and-control nodes associated with Greenland enable the United States and NATO to monitor adversary movements and constrain their ability to maneuver undetected.

This is not about tactical confrontation; it is about strategic denial. Greenland’s geography makes it exceedingly difficult for Russian or Chinese forces to move quietly from the Arctic into the Atlantic, increasing the likelihood that such efforts would be detected, tracked, and, if necessary, intercepted. When combined with American technology, Greenland adds uncertainty, constrains their options, complicates operational planning, and reduces incentives for escalation.

Russia’s Arctic Strategy and the Olenya Complex

Russia’s own posture reinforces Greenland’s importance. Moscow has invested heavily in the Arctic, operating 32 bases, expanding air and missile defenses, and increasing submarine activity across the High North. The Kola Peninsula hosts a substantial portion of Russia’s nuclear forces, supported by infrastructure such as the Olenya nuclear weapons storage facility, which underpins long-range aviation and missile operations.

Russia’s objective is twofold: to shield its own nuclear forces within a protected Arctic bastion, and to enable submarines and aircraft to push outward into the Atlantic when required. Those outward movements would be designed to threaten NATO’s reinforcement routes, hold allied territory at risk, and directly threaten U.S. strategic forces and American cities.

By enabling the U.S. and NATO to better monitor and deny access through the Arctic gaps, Greenland limits Russia’s ability to mobilize and deploy 40 percent of its submarine force. This denial mission directly strengthens Euro-Atlantic security by reducing the coercive value of Russian nuclear signalling or capacity for destruction.

China, the Arctic, and Global Deterrence

Although China is not an Arctic power by geography, it increasingly behaves like one strategically. Beijing’s naval expansion and interest in Arctic routes reflect its ambition to operate on a global scale. Chinese submarines operating in cooperation with Russia, or benefiting from shared intelligence and surveillance, could complicate the maritime balance in the North Atlantic.

Preventing Chinese submarines from accessing these waters is therefore as important as containing Russian forces. Even a limited Chinese presence would require diverting allied assets and introducing new strategic risks. Greenland helps pre-empt that outcome by reinforcing allied control over Arctic approaches and denying adversaries the ability to open a northern axis of competition.

This denial function links Greenland directly to Indo-Pacific security. The same U.S. nuclear forces that deter conflict in Asia depend on freedom of manoeuvre and survivability in the Atlantic and Arctic. If those forces are threatened in one theatre, credibility erodes in all others.

Air, Missile, and Early Warning Dimensions

The Arctic is also a critical domain for air and missile operations—America’s planned “Golden Dome.” Long-range bombers and ballistic missiles generally follow polar trajectories to maximize range and payload and minimize warning time. Greenland’s position enables early detection, tracking, and integration into broader air and missile defense architectures.

By denying adversaries access to Arctic airspace, Greenland reinforces strategic stability by reducing incentives for first-strike calculations over the North Pole. This capability is essential in an era of increasingly compressed decision timelines.

Conclusion

Greenland matters because it enables strategic denial by denying Russian and Chinese submarines, aircraft, and missiles access through the Arctic and North Atlantic gaps that connect global theatres. That denial preserves the survivability of U.S. nuclear forces, protects allied homelands, and sustains the credibility of extended deterrence across both the Euro-Atlantic and Indo-Pacific regions.

In an age defined by competition over access and geography, Greenland is not peripheral but essential to maintaining the balance of power and preventing great-power 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.

Greenland, Strategic Denial, and the Survivability of U.S. Nuclear Forces was originally published on Global Security Review.

Bottom line: The center of gravity in deterrence is shifting to space-enabled, long-range, rapidly replaceable kill webs, and our adversaries are acting as if they know it. NATO voices now openly frame space as a war-fighting domain, while Europe moves from point defense to deep strike, Washington debates force-design trades (B-52J vs. more B-21s), and Iran/Russia press for coercive advantage amid sanctions friction. The strategic task is to turn language and spending into tested, resilient, allied operational architectures, and fast.

Unifying Trends

1. Space goes operational, not “supporting.”
   NATO leaders’ tone shift (Germany, France, Spain, Canada) treats space as a domain for defense and offense (“shield and sword”), demanding common doctrine, delegated authorities, and tactically responsive launch (<96 hours) to restore/augment constellations under attack.
2. From point defense to deep strike.
   Denmark’s decision to field long-range precision fires (Tomahawk/JASSM-ER class and European options) reflects a continental realization: you can’t intercept your way out of massed salvos—you must hold launchers, C2, and magazines at risk.
3. U.S. force-design inflection.
   Cost/schedule breaches on B-52J upgrades collide with contested-airspace realities, strengthening arguments to expand and accelerate B-21. This is a survivability vs. standoff trade with industrial-base and budget consequences.
4. Great-Power coercion is coordinated.
   ISW’s readout on Moscow’s aims, Iran’s missile signaling and suspected tests, and Beijing’s pressure campaigns (incl. Taiwan wargaming counters) form a convergent pressure track seeking to outlast Western cohesion and exploit cost-asymmetry (cheap counter-space/EW vs. exquisite satellites).
5. Homeland defense as a system-of-systems problem.
   “Golden Dome” can work only if rigorous end-to-end (E2E) testing—across space sensors, comms, C2, effectors, cyber—starts now and leverages commercial testbeds/digital twins. Otherwise, the architecture risks beautiful fragility.
6. Forward posture debates return.
   Talk of re-entering Bagram underscores a broader theme: geography for deterrence matters again, but must be weighed against access, legitimacy, and escalation dynamics with the Taliban and China.

What This Means Operationally

• Speed is deterrence. Time to detect-decide-deliver (and to replace space capacity) is now a primary measure of merit.
• Proliferation beats pedigree. Multi-orbit, proliferated constellations with rapid reconstitution are more survivable than few exquisite assets.
• Kill webs over platforms. Advantage will come from tested integration of sensors, AI-enabled C2, and multi-domain effectors, not any single “silver bullet.”
• Allies are moving—synchronize them. Europe’s deep-strike pivot and NATO’s space posture create a window to standardize doctrine, data, and munitions.

Risks to Watch

• Doctrine lag in space. Without common allied space ROE/authorities, response times will miss the fight.
• Testing shortfalls. If E2E campaigns are under-funded or staged too late, integration debt will surface in crisis.
• Budget whiplash. Raiding legacy accounts for survivable capacity is necessary—but undisciplined shifts can hollow critical standoff magazines and training.
• Cost asymmetry. Adversaries’ cheap EW/dazzling/cyber vs. our pricey satellites remains a structural vulnerability.

Priority Actions (next 6–12 months)

1. Adopt an Allied Space Operations Doctrine 1.0
   Codify protect/defend, attribution thresholds, delegated authorities, and tactically responsive launch across NATO.
2. Stand up a Joint Tactically Responsive Space (TacRS) pipeline
   Contract now for rideshare, hot-spare payloads, and 96-hour launch/checkout drills; exercise quarterly.
3. Golden Dome: lock an Integrated Master Test Plan
   Fund E2E test events that include on-orbit sensing + ground C2 + live/interoperable interceptors + cyber red-teaming. Mandate industry-in-the-loop from day one.
4. Rebalance the bomber portfolio toward survivability
   Protect B-21 ramp; scrutinize B-52J scope/schedule to preserve standoff munitions buys and mission-planning AI.
5. European deep-strike integration
   Fast-track common mission planning, targeting data standards, and logistics for JASSM-ER/Tomahawk/European LR strike across F-35 and surface fleets.
6. Harden the space kill web
   Deploy optical crosslinks, jam-resilient waveforms, PNT alternatives, and autonomous battle management aids to ride through EW/cyber.
7. Tighten economic levers against Russia/Iran
   Enforce oil price caps/leakage, expand sanctions on dual-use microelectronics, and close maritime re-flag loopholes that fund attritional strategies.
8. Wargame access/logistics for any Afghanistan posture
   If Bagram re-entry is pursued, pre-plan overflight, basing, sustainment, and escalation controls; build non-permissive extraction branches.

Concrete Measures of Effectiveness

• Time-to-Replace-On-Orbit (TTRO): target ≤ 96 hours from loss to restored coverage.
• Find-Fix-Finish latency: median time from first detection to effect in minutes, not hours.
• E2E test cadence: quarterly cross-domain integrated events; zero critical interoperability defects carried forward.
• Allied deep-strike coverage: % of NATO targets held at risk at >500 km with validated comms/targeting.
• Resilience index: % of space services with disaggregated backups (multi-orbit/multi-vendor).

Longer Perspective

Deterrence now hinges on resilient connections more than singular platforms: space that can fight and recover, kill webs that integrate fast, and alliances that can reach deep. If we test as we will fight, standardize with allies, and bias for speed and survivability, we deny adversaries the slow-motion coercion they seek—and keep escalation ladders short, clear, and in our control.

This Week in Deterrence (September 15-19, 2025) was originally published on Global Security Review.