Portuguese language in Africa more recent migrations of refugees (some of whom speak Portuguese) to neighbouring countries such as Democratic Republic of Congo, Namibia, Zambia and South Africa. Other migrations involved returning Afro-Brazilian ex-slaves to places such as Nigeria, Benin, Togo, Angola and Mozambique. There are also some returning white Portuguese African refugees and their descendants from Brazil, Portugal, and South Africa to their former African controlled territories, mostly to Angola (up to 500,000) and Mozambique (350,000), and most importantly, there is the arrival of Portuguese post-colonial expatriates in Angola in the recent years, because of Portugal's economic interests and the Angolan economic boom.
South West Africa Nations were under an obligation not to recognise as valid any act performed by South Africa on behalf of Namibia. South West Africa became known as Namibia by the UN when the General Assembly changed the territory's name by Resolution 2372 (XXII) of 12 June 1968. SWAPO was recognised as representative of the Namibian people and gained UN observer status when the territory of South West Africa was already removed from the list of Non-Self-Governing Territories. In 1977, South Africa transferred control of Walvis Bay back to the Cape Province, thereby making it an exclave. The territory became the independent