U.S. Air Force Academy, Colo., cadets unload a mock patient during litter training conducted by 435th Contingency Aeromedical Staging Facility personnel, Ramstein Air Base, Germany, June 16, 2009. The cadets are participating in Operation Air Force, a summer program which provides exposure to real-world Air Force base environments and prepares the cadets for the transition from academy life to active duty. (U.S. Air Force photo by Staff Sgt. Chenzira Mallory)