Hamburger Hill is a 1987 American war film set during the Battle of Hamburger Hill, a May 1969 assault during the Vietnam War by the U.S. Army's 3rd Battalion, 187th Infantry, 101st Airborne Division, on a ridge of Dong Ap Bia near the Laotian border in central Vietnam. The ridge was a well-fortified position, including trenchworks and bunkers, of the North Vietnamese Army. U.S. military records of the battle refer to the mountain as "Hill 937," its map designation having been derived from the high elevation of the hill at 937 meters (3,074 ft).