Why was American Samoa important as a U.S. naval base?

American Samoa served as a vital U.S. naval base primarily due to the strategic location of Pago Pago Harbour on the island of Tutuila.

The site was selected in 1872 by Commander R.W. Meade, who recognized the value of the inlet’s geography; it deeply indents the island’s southeast shore, creating an extensive, naturally protected deepwater harbor. Following a treaty in 1878, the United States secured the right to establish a coaling station there, which was essential for supporting naval operations in the Pacific Ocean.123

Under the administration of the U.S. Navy from 1900 to 1951, the territory functioned as a strategic naval base. This presence allowed the United States to maintain a military foothold in the region, though it also meant that local Samoan leaders held little administrative power during the period of naval governance. Control of the territory was eventually transferred to the U.S. Department of the Interior in 1951.13