Tech. Sgt. Matthew Dekeyser, 512th Aerospace Medicine Squadron medical readiness technician, treats simulated-wounded patient Master Sgt. Sean Dial, also a medical readiness technician with the squadron, during a mass casualty exercise at Dover Air Force Base, Del., April 13, 2012. (U.S. Air Force photo by Capt. Marnee A.C. Losurdo)