Constitution of Angola to remain president until 2022. Angola was a colony of Portugal for more than 400 years from the 15th century. Demands for independence picked up momentum during the early 1950s. The principal protagonists included the MPLA, founded in 1956, the National Front for the Liberation of Angola (FNLA), which appeared in 1961, and the UNITA, founded in 1966. After many years of conflict that weakened all of the insurgent parties, Angola gained independence on 11 November 1975, after the Carnation Revolution in Portugal overthrew the Portuguese regime headed by Marcelo Caetano. A fight for dominance broke out immediately between the
1970s in Angola governments of Angola, Zambia, and Zaire signed a non-aggression pact. 1970s in Angola The 1970s in Angola, a time of political and military turbulence, saw the end of Angola's War of Independence (1961–1975) and the outbreak of civil war (1975–2002). Agostinho Neto, the leader of the People's Movement for the Liberation of Angola (MPLA), declared the independence of the People's Republic of Angola on November 11, 1975, in accordance with the Alvor Accords. UNITA and the FNLA also declared Angolan independence as the Social Democratic Republic of Angola based in Huambo and the Democratic Republic of Angola based in Ambriz.