Organization of African Unity (OAU)

established - 25 May 1963

aim - to promote unity and cooperation among African states

members - (50) Algeria, Angola, Benin, Botswana, Burkina,
Burundi, Cameroon, Cape Verde, Central African Republic, Chad,
Comoros, Congo, Djibouti, Egypt, Equatorial Guinea, Ethiopia,
Gabon, The Gambia, Ghana, Guinea, Guinea-Bissau, Ivory Coast,
Kenya, Lesotho, Liberia, Libya, Madagascar, Malawi, Mali,
Mauritania, Mauritius, Mozambique, Niger, Nigeria, Rwanda,
Sahrawi Arab Democratic Republic, Sao Tome and Principe, Senegal,
Seychelles, Sierra Leone, Somalia, Sudan, Swaziland, Tanzania,
Togo, Tunisia, Uganda, Zaire, Zambia, Zimbabwe

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Organization of American States (OAS)

established - 30 April 1948

effective - 13 December 1951

aim - to promote peace and security as well as economic and social development

members - (35) Antigua and Barbuda, Argentina, The Bahamas,
Barbados, Belize, Bolivia, Brazil, Canada, Chile, Colombia, Costa
Rica, Cuba (excluded from formal participation since 1962),
Dominica, Dominican Republic, Ecuador, El Salvador, Grenada,
Guatemala, Guyana, Haiti, Honduras, Jamaica, Mexico, Nicaragua,
Panama, Paraguay, Peru, Saint Kitts and Nevis, Saint Lucia, Saint
Vincent and the Grenadines, Suriname, Trinidad and Tobago, US,
Uruguay, Venezuela