Former US Ambassador to NATO, Ivo Daalder, joins Ian Bremmer on GZERO World to discuss Russia, NATO, and the countries caught in between. According to Daalder, Russia's invasion of Ukraine has brought the possibility of an armed conflict between two nuclear-armed powers higher than it has been since the Cuban Missile Crisis in 1962. Relations have devolved to the point that Russia sees NATO as an enemy and vice versa. So, is a new Cold War heating up?