The New START nuclear arms control treaty, a cornerstone agreement limiting strategic nuclear weapons held by the United States and Russia, is scheduled to expire on February 5, 2026, raising concerns about the future of global nuclear stability.

The treaty, which came into force in 2011, places caps on the number of deployed intercontinental ballistic missiles, submarine-launched ballistic missiles, heavy bombers, and nuclear warheads. It also includes verification measures such as data exchanges and on-site inspections aimed at maintaining transparency between the two nuclear powers.

Growing Uncertainty Over Arms Control

With the expiration date approaching, experts warn that the absence of a replacement agreement could remove the last remaining limits on the world’s two largest nuclear arsenals. Diplomatic relations between Washington and Moscow have remained strained, making negotiations on a successor treaty uncertain.

Since inspections and formal dialogue under the treaty have been limited in recent years, analysts fear that the lapse of New START could increase mistrust, miscalculation, and the risk of a renewed arms race.

Global Security Implications

Arms control advocates stress that New START has played a crucial role in maintaining strategic stability for more than a decade. Its expiration without a follow-up framework may have broader consequences for international security and nuclear non-proliferation efforts worldwide.

Several global leaders and policy experts have called for renewed diplomatic engagement to preserve transparency and reduce nuclear risks ahead of the 2026 deadline.

What Lies Ahead

As February 2026 draws closer, the future of nuclear arms control remains uncertain. Whether through an extension, a new treaty, or alternative confidence-building measures, the decisions taken in the coming months are expected to shape global security for years to come.