U.S. Army Spc. Ethan Russel assigned to Foxtrot Company,

U.S. Army Spc. Ethan Russel assigned to Foxtrot Company, 7-158, 11th Theater Aviation Regiment twirls a chemical light stick to signal his position to a medical evacuation helicopter during a training scenario in support of Warrior Exercise 91 12-05 and Global Medic 2012, Fort Hunter Liggett, Calif., June 17, 2012. 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. 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.