United Kingdom
View country profileWhat has the NWS done so far (prior to the current Review Cycle)?
What is the NWS doing on this action in the current Review Cycle?
Sources
United States
View country profileWhat has the NWS done so far (prior to the current Review Cycle)?
To maintain compliance with the central limits of the New START Treaty, by February 2018 the United States had removed 50 intercontinental ballistic missiles (ICBMs) from their silos, made four launch tubes on each of the United States’ 14 SSBNs incapable of launching ballistic missiles, and converted 41 B-52 heavy bombers to conventional-only roles. In addition, the United States de-MIRVed its intercontinental ballistic missile force such that each ICBM now carries only a single warhead.
The United States fully abided by the treaty’s verification regime, which included more than 320 on-site inspections and the exchange of more than 23,000 data notifications relating to the treaty between the United States and Russia. In 2021, the United States worked with Russia to successfully extend the treaty by the maximum of five years, until February 2026.
What is the NWS doing on this action in the current Review Cycle?
During the Review Cycle, the United States continued to fully abide by the central limits and inspection regime; however, in response to Russia’s violations of New START, the United States took lawful reciprocal countermeasures and ceased to provide its updated data as of 1 March 2023. On 1 June 2023, the United States also began to withhold treaty notifications regarding the status of treaty-accountable items.
The United States has repeatedly expressed that it is ready to negotiate a new arms control treaty to replace New START after its expiry in February 2026, provided that Russia engages in good faith. In September 2025, however, President Putin offered to voluntarily maintain the New START limits if the United States reciprocates, and as of December 2025 Russia stated that it had yet to receive a “formal answer” from the United States.
Sources
United States of America. "Actions 5, 20 and 21 of the Action Plan of the 2010 Review Conference of the Parties to the Treaty on the Non-Proliferation of Nuclear Weapons: Report Submitted by the United States of America." NPT/CONF.2020/47. Tenth Review Conference of the Parties to the Treaty on the Non-Proliferation of Nuclear Weapons, United Nations, New York, August 1–26, 2022. https://docs.un.org/en/NPT/CONF.2020/47.
U.S. Department of State. 2024 Report to Congress on Implementation of the New START Treaty. Washington, DC: U.S. Department of State, January 17, 2025. https://2021-2025.state.gov/wp-content/uploads/2025/01/UNCLASS_NST-Implementation-Report_2024-FINAL-Updated-Accessible-01.17.2025.pdf.
Faulconbridge, Guy, and Lucy Papachristou. “Russia says it awaits an answer from the US on New START as nuclear treaty ticks down.” Reuters, December 10. https://www.reuters.com/world/china/russia-says-it-awaits-an-answer-us-new-start-nuclear-treaty-ticks-down-2025-12-10/
France
View country profileWhat has the NWS done so far (prior to the current Review Cycle)?
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What is the NWS doing on this action in the current Review Cycle?
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Sources
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