What was a primary mission of the Navy Combat Demolition Units (NCDUs)?

The primary mission of the Navy Combat Demolition Units (NCDUs) was to clear obstacles on beaches. Formed during World War II, NCDUs played a critical role in amphibious assaults by conducting reconnaissance and demolition operations to remove underwater and beach obstacles that could impede landing forces. This capability was essential as it allowed for a safer approach for landing craft and troops, enabling successful operational landings.

The emphasis on clearing obstacles was vital, particularly in the Pacific Theater, where enemy defenses often included barbed wire, mines, and other barriers designed to thwart invasion efforts. The actions of NCDUs directly contributed to the success of various landings, including those at Normandy and at Tarawa, where they faced adverse conditions and enemy fire while conducting their missions. This role set the groundwork for future special operations in naval warfare and established a precedent for what would eventually evolve into the Navy SEALs.