Airman 1st Class Jonathan Guzman (right) attaches tape to Army Spc. Jeremy Gary's head to indicate the time and date he received a tourniquet during a combat lifesaver course on Joint Base Balad, Iraq, Nov. 12. The Army, Air Force and Navy conducted a mass casualty exercise as the final training scenario of a joint CLS course. Airman Guzman, a security forces apprentice with the 532nd Expeditionary Security Forces Squadron, is deployed from Lackland Air Force Base, Texas. Gary, a joint node network operator maintainer, is assigned to the 51st Expeditionary Signal Battalion, deployed from Fort Lewis, Wash. (U.S. Air Force photo/Airman 1st Class Jason Epley)