Flag of Guam Guam is an organized, unincorporated territory (insular area) of the United States. It's residents are known as Guamanians. It was ceded from Spain to the United States in 1898, after the Spanish-American War. It was occupied by the Japanese in World War 2. Retrieved from "https://1991-new-world-order.fandom.com/wiki/Guam?oldid=119220" Categories: Organized unincorporated territories of the United States Guam Add category Cancel Save Community content is available under CC-BY-SA unless otherwise noted.