Why is the Iraqi "government" telling the United States to leave ?

This past week all the news has been about the so called Iraqi government telling the United States that it needs to either set up a time table for withdrawal or withdraw immediately. At first I didn't know what to think; could it be that the Maliki government really isn't a puppet government after all and it got the balls to tell the US that it needs to leave ?
But then I realized that couldn't be further removed from reality. I think this is more of a case of Bahgdad taking orders from Washington, who themselves are taking orders from Tel Aviv, to get as many troops out as possible in order to attack Iran as soon as possible. One of the main a reasons given that the United States couldn't attack Iran now is because too many troops are bogged down in Iraq. Well there you go; take out a 100,000 or so troops and you'll be ready to liberate the shit of Iran in no time.
They're running out of patience in that shitty little country. They know they themselves can't attack Iran, they would have done so already if they thought they could get away with it without taking too much of a hit. So the time has come again, for the United States to do their dirty work for them.