upper portion of an add-on armor kit as it is lowered onto the cab section of an M931 truck tractor at Balad Air Base, Iraq, on Jan. 13, 2006. The add-on armor kit provides the driver and gunner added protection against weapons fire and improvised explosive devices. Hild is deployed to the 732nd Expeditionary Logistics Squadron at Balad Air Base. DoD photo by Master Sgt. Lance Cheung, U.S. Air Force. (Released)