• Russia and the United States have officially exchanged diplomatic notes, extending the New START Treaty without changes until February 5, 2026, just two days before its original expiration.
  • The extension fulfills a five-year agreement from 2021, preserving limits on deployed strategic nuclear warheads, missiles, and bombers, though Russia's suspension of participation in 2023 remains in effect.
  • With the treaty set to expire tomorrow, the short-term compliance provides stability, but experts warn of a looming arms race if no successor framework emerges, amid stalled strategic talks and transparency concerns.

A Last-Minute Diplomatic Move

In a move that caught many observers by surprise, the Russian Foreign Ministry announced on February 3, 2026, that Russia and the United States have formally extended the New START Treaty, with the diplomatic notes exchanged just hours before the pact was due to lapse. This fulfills a five-year extension agreed in 2021, maintaining critical caps on deployed strategic nuclear arsenals. According to people familiar with the matter, the extension entered into force after both sides completed domestic procedures, prompted by a January 26 presidential phone call between the two nations. Russia emphasized hopes for overcoming U.S. policies that it claims undermine arms control, while committing to comply with quantitative limits and launch notifications during the treaty's lifecycle.

No new modifications were added to the extension, despite Russia's prior suspension of participation in February 2023. That suspension, which cited U.S. violations like unverified conversions of over 100 strategic arms and a "fundamental change" in security due to Ukraine tensions, remains in place but is reversible if de-escalation occurs. The U.S., for its part, views the extension as vital for monitoring Russian forces, even as inspections have been halted. Efforts to restructure the treaty's verification mechanisms have hit a snag, with no progress on including China in trilateral talks as previously discussed.

Implications for Global Stability and Defense Budgets

While New START has minimal direct economic impact, it supports global stability by capping nuclear arsenals, potentially easing defense spending pressures amid high U.S.-Russia military budgets. Signed in 2010 and entering force in 2011, the treaty limits each side to 1,550 deployed warheads and related delivery systems; both met 2018 reduction goals. However, without a deal beyond tomorrow's expiration, the world could face its first gap in nuclear arms control since 1972, sparking concerns of a strategic buildup. Experts urge the U.S. to insist on full verifications and counting new Russian systems, such as the Burevestnik and Poseidon, for any successor framework.

Public and expert reactions highlight the risks of escalation without renewal, with calls for reinstating inspections to address transparency concerns. Broader strategic stability talks have stalled since 2022, and related issues like no constraints on non-strategic nukes or hypersonics remain unresolved. In a brief statement, a Russian official noted that the extension "bolsters international security for global stakeholders," but declined to comment on future negotiations. Attempts to reach U.S. officials for additional remarks were unsuccessful at press time.

As the treaty expires on February 5, 2026, short-term compliance continues, but the long-term absence of a new framework could lead to increased military expenditures and heightened geopolitical tensions. The extension, while a temporary relief, underscores the fragile state of U.S.-Russia relations and the urgent need for diplomatic breakthroughs in the coming months.