U.S. Air Force, Army, and Navy medical personnel, conduct simulated mass casualty aeromedical evacuation drills, while participating in Exercise GLOBAL MEDIC 2012 and Warrior Exercise (WAREX) 91 12-01. GLOBAL MEDIC is a joint field training exercise for theater aeromedical evacuation systems and ground medical components designed to replicate all aspects of combat medical service support. WAREX gives participating units an opportunity to rehearse military maneuvers an tactics such as security, convoy operations and quick reaction drills during simulated enemy attacks.