LANGLEY AIR FORCE BASE, Va. -- Airman 1st Class Jordan Tompkins, 71st Fighter Squadron crew chief, sprays the Vietnam Wall Memorial in Washington, D.C., May 19 in support of the Air Force Sergeant Association's annual effort to honor those who have perished in the line of duty. (U.S. Air Force photo/Airman 1st Class Jarrod R. Chavana)