Ultimates, The (2002 series) #11

Keliser explains to the captured Wasp the Chitauri plan to infiltrate and absorb all of humanity in their plan to conquer the galaxy. To Kleiser's surprise, the entire Chitauri warfleet suddenly arrives on Earth; they've been defeated elsewhere in the universe and need to escape. Kleiser prepares to destroy the Earth with a massive nuclear device. To Kleiser's even greater surprise, the Ultimates arrive, having survived the nuclear blast by means of Iron Man's force field. As the Ultimates attack, Captain America rallies the US military to rise up against the invaders.