U.S. Air Force Staff Sgt. Erin Smith, left, an aeromedical service journeyman with the 34th Aeromedical Evacuation Squadron, gives a preflight safety brief to simulated patients aboard a C-17 Globemaster III aircraft during Joint Readiness Training Center (JRTC) 14-05 training in Alexandria, La., March 13, 2014. The JRTC provides U.S. military units and personnel with realistic pre-deployment training scenarios in all aspects of armed conflict.