U.S. President Donald Trump has called for a new nuclear agreement with Russia following the expiration of the New START treaty, the last active arms control pact between the two nations. The treaty, originally signed in 2010 and later extended, had limited the number of deployed nuclear warheads by both countries. Trump described the previous deal as poorly negotiated and seriously violated, urging a 'new, advanced, and modern' agreement that would remain effective for a long period.

White House spokesperson Karoline Leavitt said there is no formal understanding between Washington and Moscow to continue adhering to the old treaty’s terms. Russia had earlier suspended inspection activities under the agreement amid deteriorating relations with the U.S. and has now declared it is no longer bound by warhead limits. Despite the deadlock, the Trump administration has recently increased diplomatic engagement with Moscow, including inviting President Vladimir Putin to Alaska and resuming military dialogue after talks in Abu Dhabi.

Arms control advocates have warned that the end of New START could trigger a renewed global nuclear arms race and urged both sides to maintain previous restrictions until a new deal is reached.