At the time, the Soviet Union and United States committed to reducing their nuclear arsenals, eliminating an entire category of nuclear weapons, and allowing thorough onsite inspections to ensure treaty compliance. During the Cold War, the INF Treaty served as a crucial stabilizing mechanism in the global nuclear order. Historically, the Strategic Arms Limitation Talks (SALT) of 1972 and 1979 were the first of several agreements between the US and the Soviet Union. As a result, both sides agreed to reduce their strategic weaponry, which included ballistic missile defenses, submarine-launched ballistic missiles, and intercontinental ballistic missiles.

In 1987, Ronald Reagan and Mikhail Gorbachev signed the INF Treaty. Additionally, they established inspection procedures to make sure both parties followed the agreement. Due to the treaty, 2,600 missiles were destroyed, marking a significant Cold War breakthrough. Despite decades of arms control, the US and Russia still field the largest nuclear forces. Although it is challenging to determine the exact extent of their stockpiles, the Stockholm International Peace Research Institute (SIPRI) estimates that the US possesses 5,328 warheads, while Russia has 5,580.

In August 2025, Russia declared it would no longer fulfil its commitments under the INF Treaty, citing increasing threats from the United States and other Western nations. When the US withdrew from the INF Treaty in 2019 because of Russian noncompliance with treaty limitations, Moscow stated that it would not use such weapons as long as Washington did not. This may have served as an effective ruse, but it served a purpose.

Questions are increasing about the utility of nuclear proliferation, the threat of arms racing, and the future of nuclear deterrence following the decision of Russia to fully abrogate the INF Treaty. The collapse of the INF Treaty represents a significant shift in the trajectory of international arms control.

The situation took a more dramatic turn as President Donald Trump announced that the US would move two of its nuclear-armed submarines closer to Russia in reaction to the “inflammatory statements” issued by former Russian President Dmitry Medvedev. This action highlights the challenge that arises when arms control breaks down—the potential for misunderstandings and overreactions increase.

Among nuclear-armed states, communication, predictability, and a certain measure of self-control are essential elements of nuclear deterrence. They were shaped by the INF Treaty, which placed verifiable limitations on missile sites. With the failure of the INF Treaty, useful tools were removed.

The future deployment of intermediate-range systems in regions that were shielded from them may prove an urgent strategic issue. Once at the epicenter of Cold War nuclear worries, Europe may have to host such weapons once more, but with improved accuracy, shorter travel times, and, perhaps, lower yields.

Deterrence dynamics in the Asia-Pacific are more difficult, especially between the US, China, and Russia, after the INF Treaty. The great powers are now accelerating nuclear modernization, while non-nuclear states are reconsidering their nonproliferation commitments. A replay of the Cold War–era European missile crisis has emerged with the collapse of the treaty.

Now, both Russia and the US are free to use and develop short-, medium-, and intermediate-range missiles without any official restraints. One more issue concerns the intentions of other governments, who may be influenced by the deterioration of controls on nuclear systems. States that did not previously possess nuclear weapons may choose to acquire them. Modern arms racing may be fast, less predictable, and more destabilizing due to technological advancements, such as autonomous delivery systems, hypersonic weapons, and AI-assisted targeting.

There are limited prospects for cooperative tools to mitigate these risks of escalation between the US and Russia. The two largest nuclear powers have a special duty to control and limit the scope of their competition.

Measures that encourage openness, trust, and communication between nuclear and non-nuclear governments will be crucial. In the absence of a global treaty, regional security accords, tailored to today’s security challenges, can effectively restrict risky deployments and restrain great powers from further modernizing their nuclear arsenals.

Nations in the Asia-Pacific can, for example, agree to mutual missile deployment restrictions similar to those in the INF Treaty’s verification procedures, which include regular inspections and satellite monitoring by mutual compliance. This would prevent insecure military build-ups in the region and reduce mistrust between states. Whatever course nations take, the importance of preventing escalation to nuclear use is foremost.

Nazia Sheikh is a Research Officer at the Centre for International Strategic Studies, AJK. Views expressed in this article are the author’s own. 

The Uncertain Future of Nuclear Deterrence and Proliferation 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.

This single-missile attack was launched from the Sary Shagan missile test complex near Astrakhan, almost 700 kilometers from the target. In remarks later that day, Vladimir Putin identified the delivery vehicle as an intermediate-range ballistic missile known as Oreshnik. The missile has been linked, variously, by the Pentagon to a terminated project, likely an intermediate-range multiple-warhead missile project known as Rubezh, and by the Ukrainian intelligence service to a future replacement for the SS-27 Mod 2 ICBM known as Kedr (translated as Cedar) that is just entering engineering development.

Further, at least one component identified in the debris from the missile had markings associated with the Bulava submarine-launched ballistic missile (SLBM). These missiles (Rubezh, Kedr, and Bulava) are designed by the Moscow Institute of Thermal Technology, as is likely the case with Oreshnik. Rubezh and a version of the SS-27 Mod 2 were tested with a new warhead deployment concept in which each warhead is called an “independent dispersal unit” (Russian acronym BIR) with its own deployment motor rather than being deployed from a single warhead bus in a more traditional multiple independently targetable reentry vehicle (MIRV) configuration. This feature, along with flight in a more fuel-consuming depressed trajectory, may make the warheads more difficult to intercept.

To date, no official damage assessments for the Pivdenmash facility are published. Putin compared the effect of a conventional Oreshnik strike to that of a nuclear weapon. However, reporting in the UK Daily Mail five days after the attack indicated that the damage was not as extensive as advertised. Ukrainian press reporting was similarly dismissive. The Kyiv Post reported that satellite imagery did not show the expected damage and recounted Russian war blogger expressions of disappointment or disbelief of the Russian official claims. American and NATO experts are said to be investigating the site, but no statements have been released yet.

Putin indicated that Oreshnik was not a weapon of mass destruction, in that it was not nuclear-armed. Examination of debris at the site indicated that the submunitions did not appear to carry high explosives; their effect was purely kinetic. At the reported impact velocity of Mach 11 (3,740 meters/second at sea level), the kinetic energy of an incoming projectile is about 7 mega-joules per kilogram (MJ/kg), which is almost 70 percent higher than the chemical energy content of TNT at 4.2 MJ/kg.

The choice of using 36 relatively large mass submunitions dispersed from the independent warheads may not have been the optimal choice for such an attack. A more effective approach may be more like systems researched and tested by the US that have been described as a “big shotgun shell.” Through the controlled use of conventional explosives to scatter fragments, one can place a desired fragment pattern on a target by selecting a height of burst appropriate to the incoming speed of the warhead and the expected fragment sizes.

Two examples are instructive. First, consider metal fragments of 50 grams each, roughly equivalent to a .50 caliber bullet; at Mach 11, each fragment has roughly ten times greater kinetic energy. The number of such fragments expected from an 800-kilogram payload (not counting structure and controls) would be 16,000.

First, if the height of burst is set to disperse 1 fragment per square meter, then the radius of the “shotgun” pattern is about 70 meters. Consequently, a fully fragmented warhead could theoretically cover about 4 acres in one shot, which would probably have produced far more devasting surface effects on the Pivdenmash complex, which is assumed to be a relatively soft target.

Second, for an increased fragment mass of 100 grams, the mass of a 25-millimeter (mm) cannon armor-piercing round, then the kinetic energy for an intermediate range ballistic missile (IRBM) -delivered, Mach 11 100-gram fragment is about 7 times higher than a cannon-fired round. Such energies raise the likely prospect of even penetrating ceilings and floors to vulnerable basement spaces. The parameters can be varied to maximize effectiveness, but at 1 fragment per square meter, the affected area will be reduced to about 1 acre.

Because of the hypersonic velocities of ballistic missile–delivered fragmenting munitions, fragment energies delivered by an IRBM will, in virtually every case, deposit significantly more energy than similarly sized munitions fired from rifles and cannons.

Conventionally armed Oreshnik allows Putin the option of shifting away from a strategy of repeated nuclear threats and reducing the need to violate the so-called nuclear taboo, for which the consequences are unknown following the first breach. It provides Russia an additional high-speed delivery option on the conventional side of the conventional-nuclear integration space. Nevertheless, given that a Russian IRBM can also be designed to carry a nuclear payload, and deliver it at transcontinental range, it also provides an additional high-speed nuclear option.

Col. (Ret.) David Rehbein is a former US Army FA52 and consultant for the National Strategic Research Institute. John Swegle, PhD, spent his career at Sandia National Laboratories, Lawrence Livermore National Lab, and Savannah River National Lab. He is also a consultant for the National Strategic Research Institute and a Senior Fellow at the National Institute for Deterrence Studies. Views expressed are their own.

Russian Use of IRBMs in Ukraine was originally published on Global Security Review.

Despite pressure from the Biden administration, the Indian government stuck to its position and, instead, bought Russian oil at discount prices only to refine it and sell it to Europe. The Indians also continued to buy arms from Russia and have sought to rebuild the defense arsenal and civilian scientific sector with Russian technology. Why have the Indians stuck to the Russians despite a warming relationship with the United States? What are the implications of India’s continued relationship with Russia?

The Military Linkage

First and foremost, India sees Russia as the source of weaponry, military technology, and the provider of systems that the West is unwilling to sell. Thus, the Indians leased nuclear submarines from the Russians which proved invaluable in training personnel for India’s own domestically manufactured nuclear boats. Negotiations continue for the lease of another Akula/Nerpa nuclear submarine from Russia although the international sanctions imposed on Moscow following the invasion of Ukraine have made payments difficult.

Similarly, the Su-30 MKI now forms the backbone of the Indian Air Force (IAF) fleet (with over 270 aircraft). The Indian government has proposed the purchase of 12 more Sukhois to help replenish India’s declining strength in air combat squadrons. The government officially authorizes 42 squadrons, but the IAF is down to roughly 31 squadrons against a continued two-front threat from Pakistan and China.

Even at the most basic level, after years of trying to indigenize the development and production of an assault rifle, the Indians set up a factory to build the Kalashnikov variant, the AK-203. For a country that has both internal and external security concerns, having a capable assault rifle for both its military and security forces remains a priority.

The more important factor is not just the ability to replenish the military supplies of the country but rather the fact that the Russians are providing the technologies India seeks to become a technologically advanced nation in the production of weaponry.

The India-Russia collaboration has led the country to jointly develop the Brahmos supersonic missile. The next generation of the weapon is supposed to have a hypersonic capability. That would put India in the same league as the United States, Russia, and China in terms of its missile capabilities.

Equally important is the fact that the Indians secured an export order from the Philippines for the Brahmos. Discussions are ongoing to sell the missile to Indonesia. This fulfills a long-term Indian ambition to become an arms exporting nation. While India seeks to sell its indigenously developed Tejas fighter to countries as varied as Argentina, Egypt, Nigeria, and the Philippines, it has not met with success. It will also be interesting to see if the United States permits a plane with an American engine to be sold to countries that are potential customers for American aircraft.

Similarly, India’s space program, which has impressive accomplishments like missions to Mars and the Moon, was built on Russian heavy launch engines. Now, the Indians are negotiating for the next generation of cryo-engine from Russia to further their ambitions in space.

On the other hand, there are problems in the mechanics of the relationship that lead, on the Indian side, to a degree of frustration. Spare parts remain a problem, although India has started to use its domestic industry to reverse engineer Russian systems. There are also delays in getting completed systems from the Russians as witnessed by the lengthy delays in acquiring the Gorshkov aircraft carrier because the shipyard could not carry out the retrofit in a timely manner.

The other problem is that post-Ukraine sanctions make it difficult to purchase weaponry from Russia. This is not a problem for heavily sanctioned countries like North Korea and Iran, but India sees itself as a part of the international community and a supporter of a rules-based international order. Consequently, New Delhi walks a fine line between purchasing weapons systems while not disregarding international concerns. This complicates the purchase of the S-400 anti-missile system from Moscow as India has troubles working out how to make the payment through internationally acceptable rules.

Although the Russians are careful about how India uses the nuclear technology it provides (asking for full-scope safeguards), it does not sanction the Indian use of Russian conventional systems and allows New Delhi to use Russian systems to carry strategic weaponry. Thus, the Su-30 can be used to carry nuclear weapons.

In contrast, all weapon sales from the United States lack guarantees that, in the event of a conflict Washington opposes, weapons are sanction- and embargo-free. This is one of the reasons India preferred the Rafale over the F-16—since the former could be used as a nuclear delivery system. For a country that is far from self-sufficient in weapons production, this is a major factor in deciding arms purchases.

Diplomatically, the Indians are getting closer to the United States. However, New Delhi does not want to antagonize Russia or China, especially because the American relationship, as discussed, comes with its own set of constraints and limitations. Thus, while the Indians see China as an existential threat, they are careful not to cross the point of no return with Beijing by pressing for a full-blown conflict. Similarly, when it comes to the supply of raw materials, Russia remains an important partner.

Even though India’s largest trading partners are China and the United States, the economic link with Russia remains vital to Indian developmental interests. American sanctions on Tehran forced India to wean itself off Iranian oil. The Russian supply of oil has been beneficial to India. Not only did it reduce import costs, but it allowed India to refine the crude and sell it on the international market—particularly to Europe.

In the short to medium term, the oil supply chain from Russia cannot be disrupted since India has few alternatives. This is of importance because Middle East oil becoming more expensive due to production cutbacks.

Lastly, a negative factor shapes the desire to keep open ties with Russia. New Delhi worries that if Moscow and Beijing get too close, it narrows India’s maneuvering space in the international system.

In a post-Ukraine war world, Moscow will likely give up its aspiration of being considered a western power and, instead, is highlighting its identity as a Eurasian nation with close ties to China. A Russia that sides with China against India would be New Delhi’s worst nightmare. This problem is compounded if Washington takes an even-handed approach to an India-China confrontation as Trump did, when, in 2020, he offered to mediate after Indian and Chinese forces engaged in fisticuffs along the border. Thus, India will continue the relationship with Russia until guaranteed military and economic alternatives are provided to India by the West.

Amit Gupta is a Senior Advisor on Peace and Conflict Resolution to the Forum of Federations, Ottawa. The views in this article are his own. He can be reached at agupta1856@gmail.com.

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It Is Difficult to Break the Russia-India Link was originally published on Global Security Review.