Answer:
In 1898, the Spanish-American War ended. It secured the U.S as a Pacific Power and produced a Peace Treaty that forced Spain to relinquish claims on Cuba, and hand over ownership of Guam, Puerto Rico, and the Philippines to the United States.
In 1902, the United States ended the military occupation of Cuba, formally making it an independent country.
In 1917-22, the U.S had to involve their military against a Cuban power dispute and armed rebellion
In 1930, The U.S. Hawley-Smoot Tariff Act reduced the Cuban share of the U.S. sugar market, making economic conditions on the island worse