US and Russia engage in nuclear arms control negotiations amidst tensions.

The US has revoked the visas of Russian nuclear inspectors, denied pending applications for new monitors, and canceled standard clearances for Russian aircraft to enter US airspace in response to Russia's suspension of the New START nuclear treaty. The State Department said it was taking those steps and others in response to Russia's "ongoing violations" of New START, the last arms control treaty remaining between the two countries, which are currently at severe odds over the Russian invasion of Ukraine.