I got news for you, pal. Iraq has already fallen to Iran and they owe it all to us for getting rid of Saddam and the Ba'aths, setting the Kurds up as semi-autonomous and marginalizing the Sunni's. They operate directly against us militarily, train Iraqi's, Shia Iraqi's, in the fine art of blowing things up without killing yourself and hold advanced courses for the same fine folks in the art of the mortar tube in addition to graduate level studies in shaped explosives.
And, as noted by Sec State, their #1 extra governmental goomba spends a fair amount of time in Iran itself just chillin'.
Wonder if we'll get a thank you card?