Global Nuclear Arms Race Fears Intensify as US-Russia Treaty Expires
The last remaining nuclear arms control pact between the United States and Russia has officially ended, triggering significant international alarm about the potential for a dangerous new global atomic weapons race. The termination of the 15-year-old New Strategic Arms Reduction Treaty (New START) represents what experts describe as the worst possible timing for global peace and security.
A Grave Moment for International Security
United Nations Secretary General António Guterres has characterised this development as "a grave moment for international peace and security". He has urgently called upon both Russia and the United States to engage in negotiations "without delay" to establish a new framework. The treaty, which originally came into force in 2010 with the goal of reducing the threat of catastrophic nuclear war, expired at midnight, effectively concluding decades of arms control cooperation between Washington and Moscow that helped stabilise the post-Cold War era.
Guterres issued a stark warning about the consequences of operating without this agreement: "we face a world without any binding limits on the strategic nuclear arsenals" of the nations that hold the overwhelming majority of the planet's nuclear weapons stockpile. He emphasised that the risk of a nuclear weapon being used is now at its highest point in decades and urged both superpowers to "reset and create an arms control regime fit for a rapidly evolving context".
Key Provisions Lost and Political Stalemate
The New START treaty established crucial limitations and transparency measures, including:
- Capping the number of deployed strategic nuclear warheads for each nation at 1,550.
- Implementing a system for regular data exchanges between the two countries.
- Providing for on-site inspections to verify compliance with the agreed limits.
These verification inspections were suspended in 2020 due to the COVID-19 pandemic and never resumed. The political landscape surrounding the treaty's extension remains fraught. Russian President Vladimir Putin has declared Russia's readiness to extend the treaty for an additional year, but only if Washington agrees to do the same. Conversely, US President Donald Trump has maintained a noncommittal stance. While White House officials have indicated Trump's general interest in maintaining nuclear limits and potentially involving China in future arms control talks, they have stated the President will make decisions "on his own timeline".
Experts Warn of Unconstrained Arms Race
Arms control advocates have long expressed deep concern about the treaty's expiration. Daryl Kimball, executive director of the Arms Control Association in Washington, explained the dire implications: "We're at the point now where the two sides could, with the expiration of this treaty, for the first time in about 35 years, increase the number of nuclear weapons that are deployed on each side."
Kimball further warned that this situation "would open up the possibility of an unconstrained, dangerous three-way arms race, not just between the U.S. and Russia, but also involving China, which is also increasing its smaller but still deadly nuclear arsenal." Beijing has consistently resisted any restrictions on its growing nuclear capabilities, complicating the diplomatic landscape.
Historical Context and Recent Escalations
The New START treaty was signed in 2010 by President Barack Obama and Russian President Dmitry Medvedev. It restricted each side to a maximum of 1,550 deployed nuclear warheads on no more than 700 missiles and bombers. Originally set to expire in 2021, it received a five-year extension. However, cooperation deteriorated significantly following Russia's invasion of Ukraine in 2022. Putin has repeatedly referenced Russia's nuclear capabilities during the conflict, warning of readiness to use "all means" to protect Russian security interests.
In a concerning move in 2024, Putin signed a revised nuclear doctrine that effectively lowered the threshold for potential nuclear weapons use. Furthermore, in February 2023, Moscow suspended its participation in the treaty's inspection protocols, citing the hostile stance of the US and NATO allies regarding the war in Ukraine. The Kremlin insisted it was not withdrawing entirely and would continue to respect the warhead caps, but the suspension critically undermined the treaty's verification mechanisms.
A More Dangerous World Ahead
Kremlin spokesman Dmitry Peskov has acknowledged that the world becomes "more dangerous" without limits on American and Russian nuclear stockpiles. This sentiment is echoed by global leaders, including Pope Leo XIV, who recently called for efforts to ensure the treaty's "concrete and effective continuation."
The expiration of New START follows the earlier collapse of the 1972 Anti-Ballistic Missile Treaty, from which the US withdrew in 2001. Russia has consistently viewed subsequent US missile defence developments as a direct threat to its nuclear deterrent. In response, Putin has ordered the advancement of new strategic weapons systems, such as the nuclear-powered Burevestnik cruise missile and the Poseidon underwater drone, both of which Russia claims to have successfully tested and is preparing for deployment.
The end of this pivotal treaty marks a critical juncture. The international community now watches anxiously to see if diplomatic channels can be reopened to prevent a destabilising and costly new chapter in the nuclear arms race, or if the world will indeed enter an era of unconstrained nuclear competition.
