American Samoa is an unincorporated territory of the United States located in the South Pacific Ocean, southeast of the island country of Samoa. It consists of five main islands and two coral atolls; the largest and most populous island is Tutuila, with the Manu'a Islands, Rose Atoll and Swains Island also included in the territory. The population of American Samoa is approximately 45,443 people in 2022.

National Marine Sanctuary of American Samoa is located in the cradle of Polynesia’s oldest culture. The sanctuary protects extensive coral reefs, including some of the oldest and largest Porites coral heads in the world, along with deep-water reefs, hydrothermal vent communities, and rare marine archaeological resources.