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–Serbia relations and joint cooperation continued through the Breakup of Yugoslavia, and Angola has expressed its strong support for Serbia on the issue of Kosovo. The Defence minister of Serbia, Dragan Šutanovac, stated in 2011 meeting in Luanda that Serbia is negotiating with the Angolan military authorities for the construction of a new military hospital in the Angola. Angola–Serbia relations Angola–Serbia relations are foreign relations between Angola and Serbia. Both countries maintain diplomatic relations established between Angola and Socialist Federal Republic of Yugoslavia in 1975, following Angola's independence. Angola has an embassy in Belgrade, with ambassador Toko Diakenga Serao, and Serbia has