Annexation of the Philippines becomes a target of opportunity in the closing days of war. The United States also invades and annexes Puerto Rico, an unincorporated but strategic island territory. There is fierce Senate debate over the Treaty of Pari...
The United States declares war on Spain in April of 1898. Anti-imperialists in Congress attach the Teller Amendment to the war resolution stating that the U.S. will not annex Cuba. The support of Cuban guerillas and Spain's lack of military prowess ...