A soldier cleans a housing unit to be turned over to the Iraqis while preparing to depart from Iraq at...
A soldier from the 3rd Brigade, 1st Cavalry Division cleans a housing unit to be turned over to the Iraqis while preparing to depart from Iraq at Camp Adder, now known as Imam Ali Base, near Nasiriyah, Iraq December 17, 2011. The last convoy of U.S. soldiers pulled out of Iraq on Sunday, ending their withdrawal after nearly nine years of war and military intervention that cost almost 4,500 American and tens of thousands of Iraqi lives. Picture taken December 17, 2011. REUTERS/Mario Tama/Pool (IRAQ - Tags: CIVIL UNREST CONFLICT POLITICS)