Revolution Leader Fidel Castro Breaks Ties with U.S. and Allies Himself with the Soviet Union
The U.S. initially welcomed what looked like a democratic Cuba, but within a few months, Castro established military tribunals for political opponents and jailed hundreds. Castro disavowed Cuba's 1952 military pact with the U.S., confiscated U.S. assets, and established Soviet-style collective farms. The U.S. broke relations with Cuba on Jan. 3, 1961, and Castro formalized his alliance with the Soviet Union. Thousands of Cubans fled the country.