Portuguese language in Africa Angola, Mozambique, and Guinea-Bissau with autochthonous African languages (mainly Niger–Congo family languages). In Africa, the Portuguese language experiences pressure and possibly competition from French and English. Cape Verde, Guinea-Bissau and São Tomé and Príncipe are all members of La Francophonie and Mozambique is a member of the Commonwealth of Nations and has observer status at La Francophonie. Conversely, Equatorial Guinea has announced its decision to introduce Portuguese as its third official language, in addition to Spanish and French, and has made a request for membership in the CPLP. Mauritius and Senegal have also joined the CPLP as associate observer members.
South West Africa land taken from the northern border of Bechuanaland, extending as far as the Zambezi river, was added to the colony. It was named the Caprivi Strip ("Caprivizipfel") after the German Chancellor Leo von Caprivi. In 1915, during South West Africa Campaign of World War I, South Africa captured the German colony. After the war, it was declared a League of Nations Class C Mandate territory under the Treaty of Versailles, with the Union of South Africa responsible for the administration of South West Africa. From 1922, this included Walvis Bay, which, under the South West Africa Affairs Act, was governed