Guam (Chamorro: Guåhan) is an island in Micronesia in the Pacific Ocean and is a U.S. territory.[1] This means that it is part of the United States and citizens of Guam are citizens of the United States as well. Guam is not an independent country, but like all populated U.S. territories, it enjoys a greater degree of autonomy than U.S. states. The Chamorro people are the native people from Guam. The capital city of Guam is the city of Hagåtña and the largest city is Dededo. Guam has important United States Air Force and Naval bases, which occupy a major part of Guam's land area. Guam is also a popular tourist destination.
Guam is one of two U.S. territories where the metric system is officially used and is dominant. (The other is Puerto Rico, which was also a Spanish colony. The metric system was introduced to both territories, before they became U.S. territories.)[2]