Nuclear armed countries going to war is supposed to be an extinction level event. That's the whole point. It's supposed to be unthinkable. https://en.wikipedia.

Nuclear armed countries going to war is supposed to be an extinction level event. That's the whole point. It's supposed to be unthinkable. https://en.wikipedia.org/wiki/Mutual_assured_destruction https://en.wikipedia.org/wiki/Mutual_assured_destruction