US to stop exchanging nuclear data with Russia after Moscow's treaty suspension

FILE PHOTO: The U.S national flag flies in front of the U.S. Embassy in Moscow, Russia February 13, 2023. REUTERS/Evgenia Novozhenina

The United States has told Russia it will cease exchanging some data on its nuclear forces following Moscow's refusal to do so, the White House said on Tuesday, calling this a response to Russia's suspending participation in the New START nuclear arms treaty.

While Russian President Vladimir Putin has not formally withdrawn from the treaty, which limits the two sides' deployed strategic nuclear arsenals, his Feb. 21 suspension imperils the last pillar of U.S.-Russian arms control.