Barksdale Honor Guard members present the colors during the 36th Annual Veterans, Prisoner of War, Missing in Action and Purple Heart Luncheon on Barksdale Air Force Base, La., April 18, 2014. The luncheon was held to honor those who served, are missing in action and have been prisoners of war. (U.S. Air Force photo/Staff Sgt. Sean Martin)
Barksdale Honor Guard members present a sword cordon for veterans during the 36th Annual Veterans, Prisoner of War, Missing in Action and Purple Heart Luncheon on Barksdale Air Force Base, La., April 18, 2014. More than 83,000 Americans are missing from World War II, the Korean War, Cold War, Vietnam War and the 1991 Gulf War. (U.S. Air Force photo/Staff Sgt. Sean Martin)
Retired Marine Gunnery Sgt. Michael Eubank, Vietnam War veteran, renders a salute during the playing of the Marine Corps Song, during the 36th Annual Veterans, Prisoner of War, Missing in Action and Purple Heart Luncheon on Barksdale Air Force Base, La., April 18, 2014. Eubank is a three-time Purple Heart recipient. (U.S. Air Force photo/Staff Sgt. Sean Martin)
Retired Army Gen. Charles ?Hondo? Campbell applauds veterans in attendance during the 36th Annual Veterans, Prisoner of War, Missing in Action and Purple Heart Luncheon on Barksdale Air Force Base, La., April 18, 2014. During his speech, Campbell spoke about the sacrifices men and women of the Armed Forces have gone through over the years. (U. S. Air Force photo/Staff Sgt. Sean Martin)