Persons born in Guam and the Northern Mariana Islands are United States Citizens. There are no more U.S. trust territories. The last one, the Trust Territory of the Pacific Islands (TTPI), evolved (some might say "devolved") into three "Freely Associated States" of the United States: the Republic of Belau (Palau), the Federated States of Micronesia (Yap, Chuuk/Truk, Pohnpei/Ponape, and Kosrae), and the Republic of the Marshall Islands (home to the Kwajelin missile range and Bikini Atoll) in the late 1970s or early 1980s. Inhabitants of American Samoa (of which Swain's Island is a part) are the only persons left who are born as U.S. noncitizen nationals. Thanks to David Link.