drg,
Iraq and Iran have been at war on and off since before they were seperate countries. Also Iran killed as many Iraqi's as they lost themselves (it wasn't millions either). Since the first war with the US and Iraq over Kuwait Iran has been protecting Iraqi assets. Much of the Iraqi air force that survived the first war is still in Iran as they now have a common enemy.
It wouldn't surprise me if the President doesn't suddenly decide that Iraq's chemical weapons are now sitting in Tehran, and instead of pulling out of Iraq they invade Iran.
JS