U.S. Army Spc. Michael Guzman from Chicago, Ill., of

U.S. Army Spc. Michael Guzman from Chicago, Ill., of Headquarters and Headquarters Company, 1st Battalion, 24th Infantry Regiment, 1st Stryker Brigade Combat Team, 25th Infantry Division climbs down a cliff in the Udaim River Valley, Dec. 12, 2008. The U.S. Army is partnering with the Iraqi army to clear the Udaim River Valley and disrupt al Qaida networks and weapons caches in the Diyala province of Iraq.