March 28, 2023

The U.S. has stopped sharing information about its strategic nuclear stockpile with Russia in response to Moscow’s decision last month to suspend its participation in a treaty that limits the deployment of atomic warheads.

The decision was conveyed to Russia on Monday, the Pentagon’s Assistant Secretary of Defense for Space Policy John Plumb told the House Armed Services’ Strategic Forces subcommittee on Tuesday.

The move comes after Russia said it was suspending participation in the post-Cold War nuclear agreement, and throws the future of Washington’s participation in the 2010 New Strategic Arms Reduction Treaty into question at a time of heightened tensions with Moscow. Last weekend, Vladimir Putin said he plans to stage tactical nuclear weapons in Belarus as his troops suffer staggering losses in his 13-month old war in Ukraine.

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