Cuban intervention in Angola the requested financial assistance (100,000US$) it received from Yugoslavia. Portugal's sudden retreat from Angola and Mozambique in 1975 ended a history of South African military and intelligence cooperation with Portugal against the Angolan and Namibian independence movements dating back to the 1960s, later formalized in a secret alliance codenamed Alcora Exercise. It also ended economic cooperation with regard to the Cunene hydro-project at the Angolan-Namibian border, which South Africa had financed. South African involvement in Angola, subsumed under what it called the South African Border War, started in 1966 when the conflict with the Namibian independence movement, South West Africa
Angola–Cuba Declaration of 1984 declaration of independence. In response, Cuba intervened in favor of the MPLA, which became a flash point for the Cold War. With Cuban support, the MPLA held Luanda and declared independence on 11 November 1975, with Agostinho Neto becoming the first president, though the civil war continued. At this time, most of the half-million Portuguese who lived in Angola – and who had accounted for the majority of the skilled workers in public administration, agriculture, industries and trade – fled the country, leaving its once prosperous and growing economy in a state of bankruptcy. Cuban intervention in Angola is believed