A Russian captain and an American captain debate which country builds the best submarines... They are standing at a harbor and they've been arguing for hours. The American says "Our subs have such efficient air filter systems that they can stay underwater for months at a time". The Russian replies:"A few months? Laughsble. Our Russian subs have such advanced air filters that they can stay submerged for up to a year" As the American opens his mouth to voice his reply, he's suddenly interrupted as a massive submarine surfaces right in front of them.A man steps out, looks at them and screams: "Heil Hitler, have we won ze war?"