After the Carnation Revolution in Portugal, the Portuguese dictator António de Oliveira Salazar was overthrown in Lisbon in 1974. So the colonies of Portugal began to seek their independence, many of them achieved it unexpectedly, the case of Angola was a very conflictive case, since in the search for independence, three parties / groups sought the power of Angola, some of these groups were supported by USSR and others by USA. The parties were " the Movimento Popular de Libertação de Angola (MPLA) (supported by USSR and the Cuban army), communist guerrilla led by Agostinho Neto; the Frente Nacional de Libertação de Angola (FNLA), nationalist guerrilla commanded by Holden Roberto and the União Nacional para a Independência Total de Angola (UNITA) (financially supported by the United States, Brazil and South Africa), guerrilla formed mostly by people of the Ovimbundu ethnic group, led by Jonas Savimbi, who went from sympathizing with Maoism to being anti-communist. "The power vacuum caused these three fronts to confront each other politically and militarily, in the search for complete power in Angola.
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