The Nuclear Issue in the Cold War

The notion that somehow Ukraine can get Russia to a place of vulnerability that would militarily require them to use nuclear weapon responses, ridiculous. That's like a deterrence. But on the other hand, if he were to lose something like Crimea and it would be so politically damaging or personally damaging, we don't exactly know how to predict how he'll react. And I think that's probably a very low probability event, but one we have to keep in mind.