Participants run the final leg of the Joint Base Langley-Eustis, Va., 24-hour Prisoner of War/Missing in Action vigil at Langley Air Force Base, Va., Sept. 18, 2015. This year marked the 6th annual JBLE POW/MIA Recognition Day run/walk to remember U.S. Service members captured in time of war, who paid the ultimate sacrifice and those still unaccounted for. (U.S. Air Force photo by Senior Airman Kimberly Nagle/Released)