U.S. Airmen with the 60th Medical Group provide medical assistance to military and civilian volunteers and mannequins in a simulated urban earthquake in the U.S. Southern Command area of responsibility during an Air Force Expeditionary Medical Support (EMEDS) health response team exercise at Travis Air Force Base in California Feb. 9, 2011. The mission of an EMEDS team, which includes physicians, nurses and a variety of medical technicians, is to rapidly deploy and provide forward stabilization, primary care and dental services to support a population at risk of 3,000 to 5,000 people. (U.S. Air Force photo by Tech. Sgt. Dennis J. Henry Jr./Released)