US Monitors Global Nuclear Activity 24/7 Post-New START Expiration
US Secretary of Energy Chris Wright confirmed that the United States is conducting round-the-clock monitoring of all global nuclear activities following the expiration of the New Strategic Arms Reduction Treaty (New START) with Russia. Speaking at a Senate Armed Services Committee hearing, Wright stated that US space-based sensors detect nuclear detonations worldwide, with particular focus on combat and conflict zones. He affirmed that this surveillance operates continuously, 24/7, though he declined to discuss specific new capabilities in an open forum. The New START treaty officially expired on February 5, 2026, after the US did not reciprocate Russian President Vladimir Putin’s September proposal to extend adherence to the treaty’s restrictions for another year. This development marks a significant shift in arms control dynamics between the two nuclear powers. Additionally, US Under Secretary of State Thomas DiNanno previously suggested the possibility of future joint policing of global nuclear arsenals by the US, Russia, and China, although no formal agreements have been established since the treaty's lapse.
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