Portuguese language in Africa as a second language, in countries like Angola and Mozambique, where Portuguese is an official language, but also in countries like South Africa and Senegal, thanks to migrants coming from Portuguese speaking countries. Some statistics claim that there are over 30 million Portuguese speakers in the continent. Like French and English, Portuguese has become a post-colonial language in Africa and one of the working languages of the African Union (AU) and the Southern African Development Community (SADC). Portuguese co-exists in Guinea-Bissau, Cape Verde, and São Tomé and Principe with Portuguese-based creoles (Upper Guinea and Gulf of Guinea Creoles), and in
South West Africa fighting for independence, particularly after the formation of the South West Africa People's Organisation (SWAPO) in 1960. In 1966, the General Assembly passed resolution 2145 (XXI) which declared the Mandate terminated and that the Republic of South Africa had no further right to administer South West Africa. In 1971, acting on a request for an Advisory Opinion from the United Nations Security Council, the ICJ ruled that the continued presence of South Africa in Namibia was illegal and that South Africa was under an obligation to withdraw from Namibia immediately. It also ruled that all member states of the United