USA HISTORY

Detailed explanation-1: -As the Cold War settled into détente in the early 1970s, Fidel Castro, following the Soviet line, began to soften his own antagonistic rhetoric against the United States.

Detailed explanation-2: -Fidel Castro held the position from 1976 to 2011, and Raúl Castro held the position from 2011 to 2021. Raúl Castro continued to hold the position of first secretary until the 8th Congress of the Communist Party of Cuba, held 16–19 April 2021, when he retired from office.

Detailed explanation-3: -The political career of Fidel Castro saw Cuba undergo significant economic, political, and social changes. In the Cuban Revolution, Fidel Castro and an associated group of revolutionaries toppled the ruling government of Fulgencio Batista, forcing Batista out of power on 1 January 1959.