The United States has acquired new territory through cession, purchase, and occupation, according to the U.S. Department of the Interior's Office of Insular Affairs. The U.S. also leased the Panama Canal Zone from 1903 to 1999.
It would be the "Midway Atoll" that is is south of the Hawaiian Islands in the Pacific Ocean, and this was the location of one of the most pivotal battles between the US and Japan in World War II.
