United States Navy SEALs – A History Part 1

The United States Navy’s “Sea, Air, and Land” Teams, commonly abbreviated as the Navy SEALs, are the U.S. Navy’s primary special operations force and a component of the Naval Special Warfare Command. Among the SEALs’ main functions are conducting small-unit maritime military operations that originate from, and return to, a river, ocean, swamp, delta, or coastline. The SEALs are trained to operate in all environments (sea, air, and land) for which they are named.


The roots of the modern-day U.S. Navy SEALs can be traced back to World War II. The US Navy determined a need for a team of specially trained covert recon level sailors whose primary role was beach landings and coastal defense strategies. In 1942, the Amphibious Scout and Raider School was established at Fort Pierce in Florida. Early SEALs were first called Scouts and Raiders.

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Underwater Demolition Teams (UDTs)

The Underwater Demolition Teams began during World War 2 in the Pacific Theatre. The US Navy’s amphibious assault expert Rear Admiral Turner – saw the need for Frogmen as he saw the failings during the invasion of Tarawa. The US Marines were not able to get to the beach due to surrounding coral reefs.

The Navy had to find a way to be able to navigate any underwater obstacles and get recconaissance information back to the Navy Command for planning.

The Navy The personnel for these teams were mostly local Seabees or others that had started out in the Naval combat demolition units (NCDU’s) were the ‘‘frogmen’’ of World War 2.

UDT training was at the Waipio Amphibious Operating Base, located in Pearl Harbor, Hawaii. Most of the instructors and trainees were graduates of the Fort Pierce NCDU or Scouts and Raiders schools, Seabees, Marines, and Army soldiers.

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