President Vladimir Putin said on Thursday that Russia would use all weapons at its disposal against Ukraine if Kyiv were to acquire nuclear arms.

Intelligence assessments over the past seven months have shown that a nuclear escalation is unlikely to result from a decision to ease restrictions on Ukraine's use of U.S. weapons.

U.S. intelligence reports suggest that Russia is unlikely to use nuclear weapons, even after Washington decided to let Ukraine strike deeper into Russian territory using American-made weapons. According to Reuters on November 27,

The U.S. decision to allow Ukraine to fire American weapons deeper into Russia has not increased the risk of a nuclear attack, which is unlikely, despite Russian President Vladimir Putin's increasingly bellicose statements,