51st state
Guam (formally the Territory of Guam) is an unincorporated and organized territory of the United States. Located in the western Pacific Ocean, Guam is one of five American territories with an established civilian government.
Boundaries between the continents of Earth
The United States of America controls numerous territories in Oceania, including the state of Hawaii and the territories of Guam, the Northern Mariana Islands and American Samoa.