About this Unit
River Division 571 (RIVDIV-571) was a component of the U.S. Navy’s Mobile Riverine Force during the Vietnam War. Established in the late 1960s, the unit operated Patrol Boat, River (PBR) craft to patrol and secure the waterways of the Mekong Delta, a region vital for both military operations and local commerce. RIVDIV-571 conducted interdiction missions, troop insertions and extractions, and provided fire support to ground forces, often facing intense enemy ambushes and challenging riverine conditions. The division played a crucial role in disrupting Viet Cong supply lines and contributing to the overall effectiveness of allied riverine operations in South Vietnam.
Historical Facts
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Formation and Role: River Division 571 (RIVDIV-571) was a unit of the U.S. Navy's Mobile Riverine Force during the Vietnam War, specializing in riverine warfare and patrol operations in the Mekong Delta.
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Part of Task Force 117: RIVDIV-571 was one of several divisions that made up Task Force 117, also known as the Mobile Riverine Force (MRF), which combined U.S. Army infantry and Navy river assault craft.
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Primary Vessels: The unit was equipped with Patrol Boat, River (PBRs), which were small, fast, and highly maneuverable boats designed for patrolling the shallow and narrow waterways of Vietnam.
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Mission Objective: Their main mission was to interdict Viet Cong supply lines, transport troops, provide fire support, and secure riverine areas from enemy ambushes and mines.
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Dangerous Duty: RIVDIV-571 patrols frequently encountered ambushes, mines, and sniper fire. The Mekong Delta’s dense foliage and maze of waterways made every mission hazardous.
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Decorations: Members of RIVDIV-571 earned numerous individual and unit commendations, including Bronze Stars, Navy Commendation Medals, and Presidential Unit Citations.
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Notable Engagements: RIVDIV-571 participated in several significant operations, such as Operation Giant Slingshot and Operation Game Warden, which targeted VC and NVA infiltration routes.
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Innovation: The unit pioneered riverine combat tactics, using PBRs for rapid reaction and adapting to guerrilla warfare environments, influencing naval riverine doctrine worldwide.
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Brotherhood and Morale: Due to the small crew size of PBRs (typically four men), strong bonds and camaraderie developed among crew members, often credited with saving lives during intense firefights.
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Legacy: The experiences of RIVDIV-571 and other riverine units inspired books and films, such as "Apocalypse Now," and their tactics continue to inform modern riverine and littoral warfare training.