Airmen salute the American flag as it is lowered by the Ellsworth Air Force Base Honor Guard during a Prisoner of War, Missing in Action Remembrance retreat ceremony at Ellsworth Air Force Base, S.D., Sept. 22, 2012. Events throughout the day were dedicated to remembering America’s POWs and MIAs. (U.S. Air Force photo by Airman 1st Class Zachary Hada/Released)