Post-New START Treaty Era: Impact on Nuclear Arms Control in Europe
The expiration of the New START Treaty on February 5, 2026, eliminates binding nuclear arsenal limits for the U.S. and Russia. This development signifies a significant shift in nuclear security dynamics, threatening the stability established since the Cold War.

As of February 5, 2026, the New START Treaty will expire, resulting in no binding restrictions on U.S. and Russian strategic nuclear arsenals for the first time since the 1970s. This situation reflects a broader decline in the post-Cold War arms control framework, with significant implications for international nuclear security.
Concurrently, the non-proliferation regime faces challenges, as dissatisfaction with disarmament progress and the Treaty on the Prohibition of Nuclear Weapons (TPNW) increase tensions within Europe. The dissolution of these agreements may lead to destabilization and a heightened risk of nuclear escalation among major powers, necessitating urgent diplomatic engagement.




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