Changes

On May 1, 1983, all UDTs were redesignated as SEAL Teams or Swimmer Delivery Vehicle Teams (SDVT). SDVTs have since been redesignated SEAL Delivery Vehicle Teams.  

On May 1, 1983, all UDTs were redesignated as SEAL Teams or Swimmer Delivery Vehicle Teams (SDVT). SDVTs have since been redesignated SEAL Delivery Vehicle Teams.  

Special Boat Units can also trace their history back to WWII. The Patrol Coastal and Patrol Boat Torpedo are the ancestors of today's PC and MKV. Motor Torpedo Boat Squadron THREE rescued General MacArthur (and later the Filipino President) from the Philippines after the Japanese invasion and then participated in guerrilla actions until American resistance ended with the fall of Corregidor. PT Boats subsequently participated in most of the campaigns in the Southwest Pacific by conducting and supporting joint/combined reconnaissance, blockade, sabotage, and raiding missions as well as attacking Japanese shore facilities, shipping, and combatants. PT Boats were used in the European Theater beginning in April 1944 to support the OSS in the insertions of espionage and French Resistance personnel and for amphibious landing deception. While there is no direct line between organizations, NSW embracement is predicated on the similarity in craft and mission.  

Special Boat Units can also trace their history back to WWII. The Patrol Coastal and Patrol Boat Torpedo are the ancestors of today's PC and MKV. Motor Torpedo Boat Squadron THREE rescued General MacArthur (and later the Filipino President) from the Philippines after the Japanese invasion and then participated in guerrilla actions until American resistance ended with the fall of Corregidor. PT Boats subsequently participated in most of the campaigns in the Southwest Pacific by conducting and supporting joint/combined reconnaissance, blockade, sabotage, and raiding missions as well as attacking Japanese shore facilities, shipping, and combatants. PT Boats were used in the European Theater beginning in April 1944 to support the OSS in the insertions of espionage and [[French Resistance]] personnel and for amphibious landing deception. While there is no direct line between organizations, NSW embracement is predicated on the similarity in craft and mission.  

The development of a robust riverine warfare capability during the Vietnam War produced the forerunner of the modern Special Warfare Combatant-craft Crewman. Mobile Support Teams provided combat craft support for SEAL operations, as did Patrol Boat, Riverine (PBR) and Swift Boat sailors. In February 1964, Boat Support Unit ONE was established under Naval Operations Support Group, Pacific to operate the newly reinstated Patrol Torpedo Fast (PTF) program and to operate high-speed craft in support of NSW forces. In late 1964 the first PTFs arrived in Danang, Vietnam. In 1965, Boat Support Squadron ONE began training Patrol Craft Fast crews for Vietnamese coastal patrol and interdiction operations. As the Vietnam mission expanded into the riverine environment, additional craft, tactics, and training evolved for riverine patrol and SEAL support.  

The development of a robust riverine warfare capability during the Vietnam War produced the forerunner of the modern Special Warfare Combatant-craft Crewman. Mobile Support Teams provided combat craft support for SEAL operations, as did Patrol Boat, Riverine (PBR) and Swift Boat sailors. In February 1964, Boat Support Unit ONE was established under Naval Operations Support Group, Pacific to operate the newly reinstated Patrol Torpedo Fast (PTF) program and to operate high-speed craft in support of NSW forces. In late 1964 the first PTFs arrived in Danang, Vietnam. In 1965, Boat Support Squadron ONE began training Patrol Craft Fast crews for Vietnamese coastal patrol and interdiction operations. As the Vietnam mission expanded into the riverine environment, additional craft, tactics, and training evolved for riverine patrol and SEAL support.