Photo G3036: Members of an EOD unit examine a pressure type trigger devise that was wired to a U.S. 81 mm mortar round charge in the roadway between B Company Outpost-1 and 2 in the 720th MP Battalion, 89th MP Group, 18th MP Brigade Tactical Area of Responsibility, Bien Hoa Provence in Vietnam sometime during November-December 1968. Courtesy of 1LT Edward R. Mendez, B Company, 720th MP Battalion, 89th MP Group, 18th MP Brigade, Long Binh Post, 1968-1969. Courtesy of 1LT Edward R. Mendez, B Company, 720th MP Battalion, 89th MP Group, 18th MP Brigade, Long Binh Post, Vietnam 1968-1969.