» This article's about the Island of Guam and the United States territory of Guam. For the Mariana Archipelago, see Mariana Islands. For the Commonwealth of the Northern Mariana Islands, see Northern Mariana Islands. » For GUAM, an eastern European international organization, see GUAM Organization for Democracy and Economic Development. Guam (; Chamorro: ),'s an island in the western Pacific Ocean and's an organized, unincorporated territory of the United States. It's one of five U.S. territori… (More on Guam)