Written by Tom Cooper of ACIG (who does wonders with OSINT - see http://www.acig.info/forum/ )

It would seem depressing that throughout the 1970s and beyond that there was some kind of war in Angola. In 1975 the decades long war seemed was still short of any conclusion This was not helped by the fact there were three rebel movements fighting for supremacy with South Africa, America, Zaire, Cuba, and the Soviet Union being involved as well. The South African intervention in Angola, and the Cuban involvement are perhaps the most well known, however the CIA were actively trying to destabilise the country, in part to recoup some prestige following the event in Vietnam. This book concentrates on the lesser known period of the final stages of withdrawal by the Portuguese Colonial forces, the build up of the three insurgent forces; and the initial intervention by Cuban forces in the region.
https://www.britmodeller.com/forums/...MuZSPsBwSg9yTM

For additional readings on this topic, see also
“[The United States’ goal in Angola] was not to keep out the Cubans and Soviets but to make their imperial efforts as costly as possible to prove that, after Vietnam, we were still capable of response, however insane. It is the story that has been told, and in impressive and convincing detail, by John Stockwell, the former chief of the CIA’s Angola ‘task force.’ His book should not be missed. Since strategic thought survives by ignoring experience, it has a highly professional interest in avoiding accounts such as this. By the same token, all who are alarmed about the tendency toward such strategic thinking should strongly welcome Mr. Stockwell’s book.” ―John Kenneth Galbraith, New York Review of Books
https://www.amazon.com/Search-Enemie...ZnoAtVa9Aq5QOg