As the world inches closer to the expiration of the New START nuclear arms control treaty, a flurry of diplomatic maneuvers, public warnings, and historical echoes have thrust the issue of nuclear weapons—and the global order that tries to contain them—back into the spotlight. On August 27, 2025, Russian President Vladimir Putin extended an offer to U.S. President Donald Trump to renew nuclear arms control talks, a move that comes as the treaty capping the world’s largest nuclear arsenals nears its end date of February 5, 2026. But the path forward is anything but clear, complicated by rising U.S.-China tensions, NATO’s posture in Ukraine, and the shadow of past nuclear crises.
Putin’s overture, reported by Reuters, was made just a day before his summit with Trump in Alaska. The Russian president suggested that Moscow and Washington could strike a deal to extend or reshape the last remaining major nuclear arms control agreement between the two countries. The New START treaty, signed in 2010, currently limits the number of deployed strategic nuclear warheads and their delivery systems for both sides. Together, Russia and the U.S. control about 87% of the world’s nuclear weapons—Russia with roughly 4,300 warheads and the U.S. with approximately 3,700, according to the Federation of American Scientists.
But the backdrop to these talks is fraught with tension. Both countries have been modernizing their arsenals, and mutual distrust runs deep. The U.S. blames Russia for the collapse of several key Cold War-era treaties, including the 1972 Anti-Ballistic Missile Treaty and the 1987 Intermediate-Range Nuclear Forces Treaty. The U.S. formally withdrew from the INF Treaty in 2019, citing Russian violations—an accusation Moscow has denied. Russia, for its part, has expressed alarm over the U.S.'s so-called "Golden Dome" missile defense shield and has warned it would resume nuclear testing if the U.S. did the same.
Amid these strains, President Trump has publicly floated the idea of bringing China—the world’s third largest nuclear power—into the arms control fold. "I think the denuclearization is a very—it's a big aim. But Russia's willing to do it and I think China is going to be willing to do it too," Trump said on August 25, 2025, according to the BBC. "We can't let nuclear weapons proliferate. We have to stop nuclear weapons." Yet, Beijing’s response was swift and unequivocal. On August 27, China’s foreign ministry spokesperson Guo Jiakun declared it "neither reasonable nor realistic" to expect China to join trilateral talks with the U.S. and Russia. "China and the United States are not at the same level at all in terms of nuclear capabilities. The countries with the largest nuclear arsenal should earnestly fulfil their special and primary responsibility for nuclear disarmament," Guo said, as reported by CBS News.
China maintains a much smaller arsenal—about 500 warheads, according to 2024 estimates by the Stockholm International Peace Research Institute, though that number is up by 90 from the previous year. France and Britain trail behind, with 290 and 225 warheads respectively. Beijing insists it keeps its nuclear forces at the "minimum level required for national security" and does not engage in an arms race. It has repeatedly rebuffed U.S. efforts to draw it into negotiations, arguing that the burden of disarmament rests with the superpowers.
The prospect of a three-way negotiation is further complicated by the ongoing war in Ukraine, which has overshadowed virtually every aspect of U.S.-Russian relations. Both Putin and Trump have publicly warned of the risk that World War Three could erupt over the conflict. Putin last year revised Russia’s nuclear doctrine, lowering the threshold for the use of nuclear weapons. The new policy allows for a nuclear response to conventional attacks on Russian territory or its allies. "Aggression of any state from a military coalition (bloc, alliance) against the Russian Federation and (or) its allies will be considered as aggression of this coalition (bloc, alliance)," the doctrine states. In August 2025, Trump responded to Russian threats by ordering two U.S. nuclear submarines to be positioned in "appropriate regions."
These moves have stoked fears of escalation. In 2022, the U.S. reportedly warned Russia about the consequences of using tactical nuclear weapons, underscoring just how close the world has come to a dangerous brink. Meanwhile, Russia has continued to flex its military muscle, with Putin announcing in August 2025 that Moscow had begun production of its newest hypersonic Oreshnik missiles, which the Kremlin says can carry nuclear warheads. Deployment of these missiles to Belarus is planned for later this year.
Arms control, once a stabilizing feature of the international order, is now on shaky ground. In 2023, Putin formally rescinded Russia’s ratification of the Comprehensive Nuclear Test Ban Treaty (CTBT), saying the move would "mirror" the U.S. stance. The U.S. signed but never ratified the CTBT, which was adopted in 1996 to ban all nuclear explosions worldwide but has never been fully implemented. China, India, Pakistan, North Korea, Israel, Iran, and Egypt have also not ratified the treaty.
History offers both warning signs and glimmers of hope. The current standoff between the U.S. and India over tariffs and energy ties with Moscow has revived memories of the sweeping sanctions Washington imposed on New Delhi after its 1998 nuclear tests at Pokhran. Back then, the U.S. terminated aid, suspended defense sales, and cut off financial flows under the Glenn Amendment. Yet, despite dire predictions, India weathered the sanctions, recalibrated its partnerships, and eventually saw most restrictions lifted. The episode ultimately paved the way for the 2008 U.S.-India Civil Nuclear Agreement, transforming a source of conflict into the foundation of strategic cooperation.
Today’s nuclear landscape is even more complex. Supply chains are more integrated, economies are larger, and migration and technology flows are central to national ambitions. While the U.S. and Russia still hold the lion’s share of nuclear arms, China’s steady buildup and refusal to join talks signals a shifting balance. France and Britain, though smaller players, remain part of the nuclear equation.
As the clock ticks toward February 2026, the world watches to see whether the New START treaty can be saved—or whether the unraveling of arms control will accelerate a new era of nuclear uncertainty. The lessons of the past suggest that even the fiercest standoffs can give way to negotiation and renewed engagement. But with public threats, military deployments, and diplomatic stalemates piling up, the stakes for global security have rarely felt higher.