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.
Armscor (South Africa) of SA.316 helicopters and Panhard armoured cars from South Africa to supplement their own limited resources had to be routed through the French Minister of Armies, Pierre Messmer. The Portuguese contacted Messmer and achieved his written blessing on the condition that the loan was kept secret. Only then could South Africa agree. However, it became increasingly difficult for suppliers to exert control over indigenous weapons produced under licence. Once established, Armscor absorbed the Atlas Aircraft Corporation. The Atlas Aircraft Corporation of South Africa (also known as Atlas Aviation) was established in 1965 to manufacture sophisticated military aircraft and avionics equipment