U.S. imperialism had different results in Cuba, the Philippines and Hawaii. A revolution led to a communist form of government in Cuba; the Philippines became an independent country; and Hawaii became a state of the Union.
In Cuba, U.S. imperialism manifested itself mostly in control over the economy. A series of corrupt administrations culminating in Fulgencio Battista's dictatorship led to popular support of the revolution of Fidel Castro, who marched into Havana in 1959 and instituted a communist government based upon that of the Soviet Union. The new regime confiscated U.S. properties and businesses, and in return, the U.S. imposed a trade embargo.
In 1898, the Spanish fleet in Manila Bay was defeated by Admiral Dewey, and through the Treaty of Paris, Spain ceded the Philippines to the United States. The U.S. plan was always for its administration to be temporary. In 1935, under the Tydings-McDuffie Act, the Philippines attained the status of a self-governing commonwealth. On July 4, 1946, just after the end of World War II, the new nation became the independent Republic of the Philippines.
In 1900, the United States annexed the islands of Hawaii. The main activity on the islands was the sugar industry, which dominated the economy until tourism replaced it, according to HawaiiHistory.org. During World War II Hawaii was under martial law. In 1959, it became the 50th state of the United States.