The Organization of African Unity was formed in 1963, 18 years after the United Nations in 1945. Four African states – Egypt, Ethiopia, Liberia and South Africa, were founding members of the UN.
As more African states became independent, they asserted their sovereignty and independence by joining the United Nations. Thus the UN African Group increased exponentially. 29 member states- Libya, Morocco, Sudan, Tunisia, Ghana, Guinea, Benin, Burkina Faso, Cameroon, Central African Republic, Chad, Congo, Cote d’Ivoire, Democratic Republic of Congo, Gabon, Madagascar, Niger, Somalia, Togo, Mali, Senegal, Nigeria, Sierra Leone, Mauritania, Tanzania, Burundi, Rwanda, Algeria and Uganda joined the UN between its formation and the creation of the OAU