U.S. Navy SEAL Teams: Origins and Evolution 1942-1962 | Defense Media Network

UDT Small Submersible Navy SEALs trace their capability origins back to four formidable legacy units formed during World War II. They were the Amphibious Scouts and Raiders, formed in August 1942 for amphibious reconnaissance and commando operations in Europe and the South Pacific; Naval Combat Demolition Units (NCDUs), assault demolitioneers formed in June 1943 and trained almost exclusively for beach obstacle-clearance operations at Normandy and Southern France; Underwater Demolition Teams (UDTs), combat swimmers formed in December 1944 to conduct hydrographic reconnaissance and demolition of obstacles before amphibious landings throughout the Pacific; and the maritime operators of the Office of Strategic Services (OSS). Source: U.S. Navy SEAL Teams: Origins and Evolution 1942-1962 | Defense Media Network