Colonial rulers may have sowed the seeds of their own destruction by educating leaders in their colonies; these leaders spread the idea of national independence. Then during World War II, some colonial rulers promised independence to their colonies in return for resources and aid needed to fight the war. After the war was over, colonies began to demand independence. Most of the ruling countries were too weak and exhausted from fighting the war to offer much resistance to these demands. In Africa, only South Africa, Ethiopia, Liberia and Egypt were independent. Between 1951 and 1993, more than 50 African colonies achieved independence. In the 1950s 6 colonies received their independence. In 1960 alone 14 colonies became independent nations; by 1968, 16 more African colonies became nations. The Trusteeship Council of the United Nations has the task of being involved in the welfare of colonies and preparing them for independence. African Countries who declared themselves to be socialist states under the MarxistLeninist definition (in the west known as, "Communist states") at some point in their history. The map uses present-day borders. Note that not all of these countries were Marxist-Leninist at the same time. People's Republic of Angola (1975 - 1992) People's Republic of Benin (1975 - 1990) People's Republic of the Congo (1970 - 1992) People's Democratic Republic of Ethiopia (1987 - 1991) Eritrea: under Ethiopian control 1955-1993 People's Republic of Mozambique (1975 - 1990) Somali Democratic Republic (1970 - 1991) Current African Socialist States (non Marxist-Leninist) (retain constitutional references to socialism): Arab Republic of Egypt Great Socialist People's Libyan Arab Jamahiriya Libya United Republic of Tanzania Former African Socialist States: People's Democratic Republic of Algeria Republic of Senegal Burkina Faso Republic of Seychelles Republic of Cape Verde Democratic Republic of Sudan Republic of Ghana Tunisian Republic Tunisia Republic of Guinea Republic of Uganda Republic of Guinea-Bissau Democratic Republic of Madagascar Republic of Mali Democratic Republic of São Tomé and Príncipe The Organization of African Unity (OAU) or Organization de l'Unité Africaine (OUA) was established on 25 May 1963. It was disbanded on 9 July 2002 by its last chairperson, South African President Thabo Mbeki and replaced by the African Union. The OAU’s primary aims: Promote the unity and solidarity of the African states and act as a collective voice for the African continent. This was important to secure Africa's long-term economic and political future. Years of colonialism had weakened it socially, politically and economically. The OAU was also dedicated to the eradication of all forms of colonialism, as, when it was established, there was still a number of states that had not yet won their independence or were minority-ruled. South Africa and Angola were two such countries. The OAU proposed two ways of ridding the continent of colonialism. Firstly, it would defend the interests of independent countries and help to pursue those of still-colonized ones. Secondly, it would remain neutral in terms of world affairs, preventing its members from being controlled once more by outside powers. Ensure that all Africans enjoyed human rights. Raise the living standards of all Africans. Settle arguments and disputes between members – not through fighting but rather peaceful and diplomatic negotiation. OAU members by date of admission (53 states) 1963 : Algeria, Burundi, Cameroon, Central African Republic, Chad, Congo (Brazzaville), Congo (Léopoldville). Dahomey, Egypt, Ethiopia, Gabon, Ghana, Guinea, Ivory Coast, Liberia, Libya, Madagascar, Mali, Mauritania, Morocco, Niger, Nigeria, Rwanda, Senegal, Sierra Leone, Somalia, The Sudan, Tanganyika, Togo, Tunisia, Uganda, Upper Volta, Zanzibar, Kenya 1964-68 : Malawi, Zambia, The Gambia, Botswana, Lesotho, Mauritius, Swaziland, Equatorial Guinea 1973-77 : Guinea-Bissau, Angola, Cape Verde, Comoros, Mozambique, São Tomé and Príncipe , Seychelles, Djibouti 1980-82 : Zimbabwe, Saharan Arab Democratic Republic (Western Sahara) 1990-94 : Namibia, Eritrea, South Africa