U.S. Air Force Airmen from the 42nd Aerial Port Squadron, Westover, Mass., assemble tents in preparation for the arrival of exercise participants at Fort Hunter Liggett, Calif., May 7, 2011, in support of Global Medic 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.