A U.S. Army soldier moves tactically up the stairwell of a house. A U.S. Army soldier from Alpha Troop, 2nd Squadron, 1st Cavalry Regiment, 4th Stryker Brigade Combat Team, 2nd Infantry Division moves tactically up the stairwell of a house searching for weapons caches in Kahn Bani Sa'ad, Iraq, on Aug. 29, 2007. SHARE: Download: Full Size (0.03 MB) Credit: VIRIN: 912289-H-MKR93-599.jpg Photo Gallery