U.S. Army Spc. Cynthia Hedrick, combat medic, with Charlie Company, 701st Brigade Support Battalion, Fort Riley, Kan., checks the pulse of a simulated patient during a field exercise at the Joint Readiness Training Center (JRTC), Fort Polk, La., March 15, 2014. Service members at JRTC 14-05 are educated in combat patient care and aeromedical evacuation in a simulated combat environment. (U.S. Air Force photo by Staff Sgt Joseph Araiza/Released)