River Division 535

River Division 535 was a unit of the United States Navy’s “Brown Water Navy” during the Vietnam War. Activated in the mid-1960s, the division was part of Task Force 116 and operated Patrol Boat, River (PBR) craft, conducting riverine patrols and interdiction missions primarily in the Mekong Delta. Its missions included disrupting Viet Cong supply routes, providing fire support for ground forces, and supporting SEAL operations. River Division 535 played a crucial role in Operation Game Warden, helping to secure vital waterways until its deactivation as the U.S. military presence in Vietnam drew down in the early 1970s.