Soldiers serve Operation Iraqi Freedom in Baghdad

A U.S. Soldier (L) form Bravo Battery, 4th Battalion, 27th Field Artillery Regiment, 2nd Brigade Combat Team, 1st Armored Division and a Sons of Iraq member provide security during a veterinary operation in Baghdad, Iraq on May 11, 2008. Sons of Iraq is a security force comprised of groups of local residents that help maintain security in their own villages and neighborhoods. (UPI Photo/David J. Marshall/U.S. Army)