U.S. Navy Adm. James A. Winnefeld Jr., the vice chairman of the Joint Chiefs of Staff, salutes during the annual National POW/MIA Recognition Day event at the Pentagon in Arlington, Va., Sept. 19, 2014. Winnefeld joined Secretary of Defense Chuck Hagel in hosting the event, which served to honor Americas POW/MIAs who have returned and those who are still missing. (DoD photo by Staff Sgt. Sean K. Harp, U.S. Army/Released)