NASIRIYAH, IRAQ – DECEMBER 18: Iraqis wave behind a U.S. flag on the dashboard of a Mine Resistant Ambush Protected (MRAP) vehicle from the 3rd Brigade Combat Team, 1st Cavalry Division as part of the last U.S. military convoy to leave Iraq on December 18, 2011 near Nasiriyah, Iraq. All U.S. troops were scheduled to have departed Iraq by December 31st, 2011. At least 4,485 U.S. military personnel died in service in Iraq. According to the Iraq Body Count, more than 100,000 Iraqi civilians have died from war-related violence. (Photo by Lucas Jackson-Pool/Getty Images)