Photo G0155-2 & 3: B Company, 720th MP Battalion, & 458th US Army Transportation Company PBR crewmen provided assistance loading casualties into a Dust-Off helicopter. The casualties were crew from the Army Tug "El Cid" (ST2122), U.S. Army 5th Transportation Company (Heavy Boat), that was ambushed on the Dong Nai River south of the Buong River in Bien Hoa Province, Military Region III, South Vietnam on 18 May 1970 . Courtesy of SP/5 Robert C. Bogison, B Company, 720th MP Battalion, 89th MP Group and 188th MP Company, 504th MP Battalion, 16th MP Group, July 1969-September 1970.