U.S. Army medical personnel cover a patient from fierce prop wash as a medic arrives to retrieve the patient during an aeromedical evacuation training exercise at Fort Hunter Liggett, Calif., June 18, 2012, in support of Global Medic 2012 and Warrior 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.