A Russian nuclear missile was launched against America. An American nuclear missile was quickly launched against Russia. The two nuclear missile met in the middle of their way. When they met, they say hello to each other. But the Russian nuclear missile invites its American counterpart for a drink. The American nuclear missile agrees and they go to a nuclear bar. At a certain moment, the American nuclear missile gets drunk. At which, the Russian nuclear missile says "Let me help you to get home".
I hope you understood the joke, because I translated it from Romanian (because I heard it in Romanian). I apologize to any pacifistic reader of mine.