Photo G2413: 504th MP Battalion, 16th MP Group, 18th MP Brigade compound Da Nang, Vietnam, in the spring or summer of 1971. Taken from one of the perimeter bunkers. Courtesy of SP/4 Ron Luchka, 188th MP Company, 504th MP Battalion, 16th MP Group, 18th MP Brigade, Vietnam, November 1970 to July 1971.