TF117, RIVDIV 13, RIVRON 132, R132-1

Task Force 117, also known as the Mobile Riverine Force, was a joint U.S. Navy and Army unit established during the Vietnam War to conduct operations in the Mekong Delta’s complex riverine environment. River Division 13 (RIVDIV 13) was one of the subordinate units within TF117, operating heavily armed Patrol Boat, River (PBR) and Armored Troop Carrier (ATC) craft to patrol and secure waterways. Within RIVDIV 13, River Squadron 132 (RIVRON 132) and its component River Section 132-1 (R132-1) played key roles in interdiction, troop transport, and fire support missions. These units faced frequent enemy ambushes yet contributed significantly to disrupting Viet Cong supply lines and supporting ground operations throughout the delta region.