He just got off the phone from talking to Mossad and it's clinched for the coming fall.
Remember, they only want to destroy America in order to save it.
Sure, that's it.
Notice how it "only cost 300 lives" to intervene in Gulf War I, but it was worth it. He's willing to fight to the last goy for what's right. He'll bring up the rear with the First Israeli Typing Corps from his Easyboy monitoring the battle from his living room with a remote control.