Fact Check: Is the Pentagon Spending $15M a Year to Kill Brown Tree Snakes on Guam? On 3/17/21 at 5:54 PM EDT The Western Pacific island of Guam was trending on Twitter after Representative Marjorie Taylor Greene (R-Ga.) referred to the U.S territory as a foreign land, like China and Russia, in a video. The island was a major U.S. Naval and Air Force base during World War II, and the Guam Organic Act of 1950 made Guam an unincorporated territory of the United States, transferring jurisdiction from the U.S. Navy to the Department of the Interior (DOI). Anyone born in Guam is automatically a U.S. citizen.