The war is over. Most of the noise these days is from politicians arguing, not bombs going off.What is more, the American presence in the region is increasingly popular.
Iran shows no signs of backing off, and this threatening attitude is why so many Iraqis, including Shia, want American troops to remain. Iran wants them gone, so that Iraq will be more responsive to Iranian threats. The Sunni Arabs, in Iraq and to the south in Arabia, want the U.S. to stay as well, and for the same reason. Keeping the Iranians out is nothing new, it's a local tradition that is thousands of years old.Read about it here.