Puerto Rican citizenship
A 1918 official report from the American colonial governor of Puerto Rico to the U.S. Secretary of War, this one after the Jones Act of 1917, had become law, states that the "passports...[are used to] prove a person's nationality," thus making clear that Puerto Rican citizenship and Puerto Rican nationality were one and the same. The United States government also recognizes this status in its own records. For example, the CIA World Fact Book, states that the nationality of Puerto Ricans is not "American" but, in fact, ""Puerto Rican"." The Spanish Government also recognizes Puerto Ricans as a people with Puerto Rican, "and not American," citizenship. It also provides Puerto Rican citizens privileges not provided to citizens of several other nations, such as Haití, Jamaica, Trinidad y Tobago y Guyana. Since 2007, the Government of Puerto Rico has been issuing "Certificates of Puerto Rican Citizenship" to anyone born in Puerto Rico or born outside of Puerto Rico with at least one parent who was born in Puerto Rico.
Puerto Rican women in the military
Spain ceded Puerto Rico to the United States in accordance with the agreement reached in the 1898 Treaty of Paris, which officially ended the Spanish–American War. On March 2, 1917, with the advent of World War I, U.S. citizenship was imposed upon Puerto Ricans as a result of the passage if the Jones–Shafroth Act (the Puerto Rican House of Delegates rejected US citizenship). Two months later, when Congress passed the Selective Service Act, conscription was extended to the island. Those who were eligible, with the exception of women, were expected to serve in the military. About 20,000 Puerto Rican men were drafted during World War I.