
Nuclear Arms Control After New START: The World Has No Rulebook
The official expiration of the New Strategic Arms Reduction Treaty (New START) on February 5, 2026, marks a historic collapse of the bilateral nuclear arms control framework. For the first time since 1969, the world’s two largest nuclear powers operate without legally binding limits on their strategic arsenals. This analysis explores the risks posed by this legal vacuum, including heightened unpredictability, the erosion of transparency mechanisms, and the challenges of integrating emerging technologies—such as AI and hypersonics—into a future arms control architecture. With no formal successor agreement currently under negotiation, the global security landscape faces a precarious shift toward an unconstrained nuclear environment.










