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–Vietnam relations Angola–Vietnam relations Angola–Vietnam relations were established in August 1971, four years before Angola gained its independence, when future President of Angola Agostinho Neto visited Vietnam. Angola and Vietnam have steadfast partners as both transitioned from Cold War-era foreign policies of international communism to pro-Western pragmatism following the fall of the Soviet Union. In February 1974, the National Liberation Front of South Vietnam (NLFSV) commended the 1961 attack on Cassanje, the first battle of Angola’s war of independence. In January 1975, Nguyễn Hữu Thọ, the leader of NLFSV, gave his "warmest greetings" to the leaders of the (People's Movement for the