Russia has repeatedly said it will only use nuclear weapons if it threatens its very existence. Russia has said it does not need it in the current context of Ukraine. The exodus intensified as Russian aggression intensified in the populated area of Mariupol. Ukraine has again rejected a Russian offer to end the attack and surrender. Land and air strikes will intensify in the coming days. The U.S. has said there is no evidence that weapons have arrived in Russia from China since the war began.
