U.S. Air Force Combat Controller Senior Airman Adam Griffen assigned to the 22nd Special Tactics Squadron, McCord Air Force Base, is silhouetted my the sun setting, while he uses his a radio to guide a C-130 on to a dirt runway in support of Exercise GLOBAL MEDIC 2012 and Warrior Exercise 91 12-01 at Fort Hunter Liggett, Calif., June 19, 2012. 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. Warrior Exercise gives participating units an opportunity to rehearse military maneuvers an tactics such as security, convoy operations and quick reaction drills during simulated enemy attacks.