Spc. Chris Caldwell mans a gun turret. U.S. Army Spc. Chris Caldwell of Charlie Troop, 1st Squadron, 10th Calvary Regiment, 2nd Brigade Combat Team, 4th Infantry Division mans a gun turret while traveling in a convoy to Mahawil, Iraq, on Dec. 14, 2008. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 182150-D-NVQ04-846.jpg Photo Gallery