If Putin goes nuke, it’s all over for all of us. ANY nuclear attack anywhere will quickly lead to a feedback loop of escalation that will culminate in Armageddon within a few hours or days, and war gamers are fooling themselves to imagine otherwise. It’s just human nature: if you get into a fistfight in a bar and your adversary, cornered and beaten, pulls out a hidden gun, you’re dead, and he faces a long prison sentence. If you or your friends also have a gun, he’s dead as well. Likewise, If Putin nukes Kiev or anywhere else, he’s dead but so are all the rest of us.