U.S. Air Force Lt. Col. Bonnie Stiffler, front right, a clinical nurse with the 81st Medical Group, Keesler Air Force Base, Miss., describes a tent layout plan with observer-controller-trainers during Joint Readiness Training Center (JRTC) 14-05 training at Fort Polk, La., March 14, 2014. The JRTC provides U.S. military units and personnel with realistic pre-deployment training scenarios in all aspects of armed conflict.