Angola–Cuba Declaration of 1984 which was called the Colonial War. The principal protagonists included the People's Movement for the Liberation of Angola (MPLA), founded in 1956, the National Front for the Liberation of Angola (FNLA), which appeared in 1961, and the National Union for the Total Independence of Angola (UNITA), founded in 1966. After many years of conflict that weakened all of the insurgent parties, Angola gained its independence on 11 November 1975, after the 1974 coup d'état in Lisbon, Portugal, which overthrew the Portuguese régime headed by Marcelo Caetano. Portugal's new revolutionary leaders began in 1974 a process of political change at home
1970s in Angola the week before independence. While Cuban officers led the mission and provided the bulk of the troop force, 60 Soviet officers in the Congo joined the Cubans on November 12. The Soviet leadership expressly forbid the Cubans from intervening in Angola's civil war, focusing the mission on containing South Africa. In 1975 and 1976 most foreign forces, with the exception of Cuba, withdrew. The last elements of the Portuguese military withdrew in 1975 and the South African military withdrew in February 1976. On the other hand, Cuba's troop force in Angola increased from 5,500 in December 1975 to 11,000 in