The Cuban president whose socialist leanings angered U.S. leaders for decades was Fidel Castro. He led the Cuban Revolution that overthrew Fulgencio Batista in 1959 and soon reshaped Cuba into a one-party socialist state.
Castro initially emphasized Cuban nationalism and anti-imperialism, but his government nationalized industries, redistributed land, and expanded state control over the economy. In December 1961, he publicly identified himself as a Marxist-Leninist, deepening the break with Washington.
The United States opposed Castro through diplomatic isolation, economic sanctions, covert operations, and support for the failed Bay of Pigs invasion in 1961. Cuba’s alliance with the Soviet Union then made the island central to Cold War tensions, especially during the Cuban Missile Crisis of 1962.
A common mix-up is confusing Fidel Castro with his brother Raúl Castro, who succeeded him as Cuba’s president in 2008. Fidel remained the country’s dominant revolutionary leader for decades and died in 2016.