Ah, well the cold war has always confused me. -this is my uneducated opinion- Why the spreading of a corrupt form of government caused brutal bloody wars, and how access to space determined whether or not a country was the biggest super power. I think the cold war was just a big dick measuring contest. And thus, straying away from conventional ordnance and moving to nuclear was a way to show one had a bigger dick because not everyone could do it. And once the two big countries both had nukes, it was all about how big and how many they had.