The island of Cuba was inhabited by various Amerindian cultures prior to the arrival of the explorer Christopher Columbus in 1492. After his arrival, Spain conquered Cuba and appointed Spanish governors to rule in Havana. The administrators in Cuba were subject to the Viceroy of New Spain and the local authorities in Hispaniola. In 1762–63, Havana was briefly occupied by Britain, before being returned to Spain in exchange for Florida. A series of rebellions between 1868 and 1898, led by General Máximo Gómez, failed to end Spanish rule and claimed the lives of 49,000 Cuban guerrillas and 126,000 Spanish soldiers. However, the Spanish–American War resulted in a Spanish withdrawal from the island in 1898, and following three-and-a-half years of subsequent US military rule, Cuba gained formal independence in 1902.

The Cuban Revolution was a military and political effort to overthrow the government of Cuba between 1953 and 1959. It began after the 1952 Cuban coup d'état which placed Fulgencio Batista as head of state. After failing to contest Batista in court, Fidel Castro organized an armed attack on the Cuban military's Moncada Barracks on July 26, 1953. The rebels were arrested and while in prison formed the 26th of July Movement (M-26-7). After gaining amnesty the M-26-7 rebels organized an expedition from Mexico on the Granma yacht to invade Cuba. In the following years the M-26-7 rebel army would slowly defeat the Cuban army in the countryside, while its urban wing would engage in sabotage and rebel army recruitment. Over time the originally critical and ambivalent Popular Socialist Party would come to support the 26th of July Movement in late 1958. By the time the rebels were to oust Batista the revolution was being driven by the Popular Socialist Party, 26th of July Movement, and the Revolutionary Directorate of March 13.