Members of the 31st Fighter Wing Honor Guard prepare to present the colors during the Prisoner of War/Missing in Action Remembrance Week Missing Man Table tribute ceremony, Sept. 15, 2015, at Aviano Air Base, Italy. According to the Defense POW/MIA Accounting Agency, there are still 83,114 service members, since World War II, who are unaccounted for. (U.S. Air Force photo by Staff Sgt. Evelyn Chavez/Released)