Which U.S. Navy base served as the headquarters of the Pacific Fleet at Pearl Harbor in 1941?

Naval Station Pearl Harbor served as the headquarters of the U.S. Pacific Fleet in 1941.

Pearl Harbor was a major naval base on the southern coast of Oahu. Its deep-water harbor, repair facilities, fuel stores, dry docks, and strategic position made it the principal American fleet center in the Pacific. The Pacific Fleet’s presence there made the harbor the central target of Japan’s December 7 attack.

The base was attacked alongside nearby Army Air Forces installations. Japanese planners hoped to cripple American battleships and aircraft long enough to allow Japan to expand across Southeast Asia and the western Pacific.

The name can cause confusion because Pearl Harbor contains several separate military facilities, including the naval air station and submarine base. The headquarters reference concerns the overall naval station and fleet command, not one individual airfield or shipyard.