U.S. Air Force Tech Sgt. Nathan Williamson, a C-17 Globemaster III loadmaster with the 728th Airlift Squadron, listens to U.S. Air Force Tech Sgt. Ken MacArthur (foreground), a Survival Evasion Resistance Escape instructor with the 446th Operations Support Flight, as he explains the proper way to use a reflective mirror to signal for help or start a fire. Flight crew members with the 446th Airlift Wing are required to complete SERE training every three years. (U.S. Air Force photo by Staff Sgt. Grant Saylor)