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Fidel Alejandro Castro Ruz (Latin American Spanish: [fiˈðel aleˈhandɾo ˈkastɾo ˈrus] August 13, 1926 – November 25, 2016) was a Cuban communist revolutionary and politician who governed the Republic of Cuba as Prime Minister from 1959 to 1976 and then as President from 1976 to 2008. Politically a Marxist–Leninist and Cuban nationalist, Castro also served as the First Secretary of the Communist Party of Cuba from 1961 until 2011. Under his administration, Cuba became a one-party communist state, while industry and business were nationalized and state socialist reforms were implemented throughout society.
Born in Birán, Oriente as the son of a wealthy Spanish farmer, Castro adopted leftist anti-imperialist politics while studying law at the University of Havana. After participating in rebellions against right-wing governments in the Dominican Republic and Colombia, he planned the overthrow of Cuban President Fulgencio Batista, launching a failed attack on the Moncada Barracks in 1953. After a year's imprisonment, Castro traveled to Mexico where he formed a revolutionary group, the 26th of July Movement, with his brother Raúl Castro and Che Guevara. Returning to Cuba, Castro took a key role in the Cuban Revolution by leading the Movement in a guerrilla war against Batista's forces from the Sierra Maestra. After Batista's overthrow in 1959, Castro assumed military and political power as Cuba's Prime Minister. The United States came to oppose Castro's government and unsuccessfully attempted to remove him by assassination, economic blockade and counter-revolution, including the Bay of Pigs Invasion of 1961. Countering these threats, Castro formed an alliance with the Soviet Union and allowed the Soviets to place nuclear weapons in Cuba, sparking the Cuban Missile Crisis—a defining incident of the Cold War—in 1962.
The longest-serving non-royal head of state in the 20th and 21st centuries, Castro polarized world opinion. His supporters view him as a champion of socialism and anti-imperialism whose revolutionary regime advanced economic and social justice while securing Cuba's independence from American imperialism. Critics view him as a dictator whose administration oversaw human-rights abuses, the exodus of a large number of Cubans and the impoverishment of the country's economy. Castro was decorated with various international awards and significantly influenced various individuals and groups across the world.