I think you need to do a little historical investigation, the reason for chaos in Iraq is BECAUSE OF OUR PRESENCE. Iraq has been raped for the past century by Britain and then by the U.S. Saddam was a CIA asset until we decided it was bad that he invaded Kuwait, even after giving assurances that we did not look unfavorably upon that act.  No one likes imperialist goons in their country trying to impose their will on them. There will be no peace with the U.S. in Iraq.