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
West Africa Squadron courts were established along the African Coast. In 1807, a Vice Admiralty Court was established in Freetown, Sierra Leone. In 1817, several Mixed Commission Courts were established, replacing the Vice Admiralty Court in Freetown. These Mixed Commission Courts had officials from both Britain and foreign powers, with Anglo-Portuguese, Anglo-Spanish, and Anglo-Dutch courts being established in Sierra Leone. Far from the "Pax Britannica" style policing of the 1840s and 1850s, early efforts to suppress the slave trade were often ineffectual due to a desire to keep on good terms with other European powers. The actions of the West Africa Squadron were