Marine Corps Body Bearers, Bravo Company, Marine Barracks Washington D.C., stand at attention during a full honors funeral for three formerly unaccounted for Vietnam veterans at Arlington National Cemetery, Arlington, Va., Sept. 27, 2018. Capt. John A. House II, Cpl. Glyn L. Runnels, Jr. and Lance Cpl. John D. Killen III were accounted for on Dec. 22, 2015 and buried together in Arlington. The Marines died when their CH-64A Sea Knight helicopter was struck by enemy fire and crashed, June 30, 1967. House, who piloted the helicopter, was attempting to insert eight members of Company A, 3rd Reconnaissance Battalion, 3rd Marine Division, into hostile territory in Thau Thien-Hue Province, Vietnam, when enemy forces attacked from a surrounding tree line. Lance Cpl. Merlin R. Allen and Navy Hospital Corpsman Michael B. Judd also died during the crash and were individually identified in 2013. (U.S. Marine Corps photo by Sgt. Robert Knapp/Released)