Final answer:
After the US won control over Puerto Rico, it established a military government and implemented policies for assimilation. The Foraker Act of 1900 established a civil government. Puerto Ricans gained full US citizenship in 1917.
Step-by-step explanation:
After the US won control over Puerto Rico in 1898, it established a military government on the island. This government enacted a series of policies aimed at assimilating Puerto Rico into American society, including the imposition of English as the official language and the introduction of American laws and institutions. The Foraker Act of 1900 established a civil government for Puerto Rico, with a governor appointed by the US President and a partially elected legislature. However, Puerto Ricans were not granted full US citizenship until 1917.
Learn more about US control over Puerto Rico