U.S. Army Spc. Richard Cavasug, assigned to the 3rd Brigade, 215th Brigade Support Battalion, 1st Cavalry Division, drills a hole to replace a hinge on a Humvee door at a base mechanic shop at Forward Operating Base Marez in Mosul, Iraq, on July 7, 2009. DoD photo by Petty Officer 1st Class Carmichael Yepez, U.S. Navy. (Released)