Russian president, Vladimir Putin has warned he could engage in nuclear war. Russia is in a diplomatic standoff with the West after amassing more than 100,000 soldiers on the Ukrainian border while ramping up military exercises. Russia continues to deny any plans to launch an invasion, instead pointing the finger at NATO for its expansion in Eastern Europe, however, a video has now emerged showing Putin threatening to engage in nuclear war if Ukraine joins NATO and seeks to regain control of Crimea, the peninsula annexed by Russia in 2014. New footage appears to show the deployment of ‘unstopp…