Under the Treaty of Paris of 10 December 1898, marking the end of the Spanish-American war, the island was ceded to the United States, which established a military protectorate on the island between 1898 and 1900.
1898年12月10日签订《巴黎条约》结束西美战争，该岛被割让给美国；美国于1898年至1900年以该岛为其军事受保护国。