Soldiers run up the staircase of a building. Soldiers of Alpha Troop, 27th Cavalry Regiment, 4th Brigade Combat Team, run up the staircase of a building to establish over watch positions during a mission in Mosul, Iraq, on Sept. 19, 2007. SHARE: Download: Full Size (0.04 MB) Credit: VIRIN: 075375-S-SXF51-096.jpg Photo Gallery