The space battle scene: after the US tries to pull off a Big Damn Heroes moment by sending a secretly constructed space battleship against the zeppelin carriers but gets overwhelmed by sheer numbers, a fleet of over a dozen other spacecraft (including the Mir space station!) from various national space programs join the fray. Cue the US president's indignant "OK, who didn't arm their spaceships?!"
Made even funnier by the Finnish ambassador timidly raising his hand, being the only one who does so.
President: Oh, great... great, that's just... great... You all gave me your word!