U.S. Army soldiers participate in the exercises Global Medic 2011 and Warrior 91-11-01 at Fort Hunter Liggett, Calif., on May 17, 2011. Global Medic is a joint field training exercise for theater aeromedical evacuation system and ground medical components designed to replicate all aspects of combat medical service support. Warrior 91-11-01 is an exercise designed to give participating units an opportunity to rehearse military maneuvers and tactics.