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
Trade unions in Angola Trade unions in Angola Before 1975, while under Portuguese rule, Trade unions in Angola existed primarily as "occupational syndicates" - operating welfare services, but banned from collective bargaining and strike action. Independent African trade unions were illegal, however, some underground or exiled unions existed, and were involved in the struggle for Angolan independence. When the Movimento Popular de Libertação de Angola (MPLA) came to power in 1975 the National Union of Angolan Workers (UNTA) became the sole national trade union centre. There is now an independent trade union centre as well, the General Centre of Independent and Free Unions of