US Navy SEALs

The Navy SEALs (Sea, Air, and Land teams) 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.

History
The U.S. Navy SEALs can trace their roots to World War II. The United States Navy recognized the need for the covert reconnaissance of landing beaches and coastal defenses. As a result, the Amphibious Scout and Raider School was established in 1942 at Fort Pierce, Florida. The Scouts and Raiders were formed in September of that year, just nine months after the attack on Pearl Harbor, from the Observer Group, a joint U.S. Army-Marine-Navy unit.