President Vladimir Putin on Tuesday signed a revised nuclear doctrine declaring that a conventional attack on Russia by any nation that is supported by a nuclear power will be considered a joint

President Vladimir Putin approved an update to Russia's nuclear doctrine, widening the scenarios in which it would consider a strike. The move seemed a direct response to events in Ukraine, where the US recently allowed Kyiv to use American weapons for ...

President Vladimir Putin has updated Russia’s nuclear doctrine, two days after his US counterpart Joe Biden granted Ukraine permission to strike targets deep inside Russia with US-made weapons. Under the updated doctrine issued Tuesday,