ELLSWORTH AIR FORCE BASE, S.D. -- Retired Lt. Col. John Yuill speaks during the Prisoners of War/Missing in Action Remembrance Day luncheon, Sept. 18. Colonel Yuill flew missions over Vietnam from April 1972 until his plane was shot down December 22, 1972 during the Linebacker II campaign. He was captured by enemy forces and held captive until his release March 29, 1973. (U.S. Air Force photo/Airman 1st Class Corey Hook)