<P> The designation of the Vietnam Unknown proved to be difficult--with improvements in DNA testing it is possible, though unlikely, that the recovered remains for every unknown soldier killed in the Vietnam War will be identified . </P> <P> The Vietnam Unknown service member was originally designated by Medal of Honor recipient U.S. Marine Corps Sgt . Maj . Allan Jay Kellogg, Jr., during a ceremony at Pearl Harbor, Hawaii, May 17, 1984 . </P> <P> Each branch of the Armed Services took part in the transportation to honor the unknown . The Marines from Marine Barracks Hawaii consisted of an Honor Guard of 9 enlisted men and Lt. Denis Muller . The designated Vietnam Unknown was transported aboard the USS Brewton, where the Marines stood guard over the casket during the voyage to Naval Air Station Alameda, California . At Travis, the debarkation ceremony turned the remains over to the USAF on May 24 . The next day, the remains of were flown from Travis Air Force Base, California, arriving at Andrews Air Force Base, Maryland . Once there the remains were turned over to the US Army, where the remains were taken to Fort McNair for placement upon the horse - drawn wagon which later carried the Unknown to the Capital Rotunda for display before interment . While on display for public viewing, all branches of the US Armed Forces stood in honor, guarding the casket of the Unknown for 2 weeks . </P> <P> Many Vietnam veterans and President Ronald Reagan and Nancy Reagan visited the Vietnam Unknown in the U.S. Capitol . An Army caisson carried the Vietnam Unknown from the Capitol to the Memorial Amphitheater at Arlington National Cemetery on Memorial Day, May 28, 1984 . </P>

Who is buried in the tomb of the unknown in arlington national cemetery