Organization for the Prohibition of Chemical Weapons (OPCW): established - 29 April 1997

aim - to enforce the Convention on the Prohibition of the Development, Production, Stockpiling and Use of Chemical Weapons and on Their Destruction; to provide a forum for consultation and cooperation among the signatories of the Convention

members - (174) Afghanistan, Albania, Algeria, Argentina, Armenia,
Australia, Austria, Azerbaijan, The Bahamas, Bahrain, Bangladesh,
Belarus, Belgium, Benin, Bhutan, Bolivia, Bosnia and Herzegovina,
Botswana, Brazil, Brunei, Bulgaria, Burkina Faso, Burma, Burundi,
Cambodia, Cameroon, Canada, Cape Verde, Central African Republic, Chad,
Chile, China, Colombia, Comoros, Democratic Republic of the Congo,
Republic of the Congo, Cook Islands, Costa Rica, Cote d'Ivoire,
Croatia, Cuba, Cyprus, Czech Republic, Denmark, Djibouti, Dominica,
Dominican Republic, Ecuador, El Salvador, Eritrea, Equatorial Guinea,
Estonia, Ethiopia, Fiji, Finland, France, Gabon, The Gambia, Georgia,
Germany, Ghana, Greece, Grenada, Guatemala, Guinea, Guinea-Bissau,
Guyana, Haiti, Holy See, Honduras, Hungary, Iceland, India, Indonesia,
Iran, Ireland, Israel, Italy, Jamaica, Japan, Jordan, Kazakhstan,
Kenya, Kiribati, South Korea, Kuwait, Kyrgyzstan, Laos, Latvia,
Lesotho, Liberia, Liechtenstein, Lithuania, Luxembourg, The Former
Yugoslav Republic of Macedonia, Madagascar, Malawi, Malaysia, Maldives,
Mali, Malta, Marshall Islands, Mauritania, Mauritius, Mexico, Federated
States of Micronesia, Moldova, Monaco, Mongolia, Morocco, Mozambique,
Namibia, Nauru, Nepal, Netherlands, NZ, Nicaragua, Niger, Nigeria,
Norway, Oman, Pakistan, Panama, Papua New Guinea, Paraguay, Peru,
Philippines, Poland, Portugal, Qatar, Romania, Russia, Rwanda, Saint
Kitts and Nevis, Saint Lucia, Saint Vincent and the Grenadines, Samoa,
San Marino, Saudi Arabia, Senegal, Seychelles, Sierra Leone, Singapore,
Slovakia, Slovenia, South Africa, Spain, Sri Lanka, Sudan, Suriname,
Swaziland, Sweden, Switzerland, Tajikistan, Tanzania, Thailand, Togo,
Trinidad and Tobago, Tunisia, Turkey, Turkmenistan, Uganda, Ukraine,
UAE, UK, US, Uruguay, Uzbekistan, Venezuela, Vietnam, Yemen,
Yugoslavia, Zambia, Zimbabwe

Organization of African Unity (OAU): established - 25 May 1963

aim - to promote unity and cooperation among African states

members - (53) Algeria, Angola, Benin, Botswana, Burkina Faso, Burundi,
Cameroon, Cape Verde, Central African Republic, Chad, Comoros,
Democratic Republic of the Congo, Republic of the Congo, Cote d'Ivoire,
Djibouti, Egypt, Equatorial Guinea, Eritrea, Ethiopia, Gabon, The
Gambia, Ghana, Guinea, Guinea-Bissau, Kenya, Lesotho, Liberia, Libya,
Madagascar, Malawi, Mali, Mauritania, Mauritius, Mozambique, Namibia,
Niger, Nigeria, Rwanda, Sahrawi Arab Democratic Republic, Sao Tome and
Principe, Senegal, Seychelles, Sierra Leone, Somalia, South Africa,
Sudan, Swaziland, Tanzania, Togo, Tunisia, Uganda, Zambia, Zimbabwe

Organization of American States (OAS): established - 14 April 1890 as the International Union of American Republics; 30 April 1948 adopted present charter; effective - 13 December 1951

aim - to promote regional 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

observers - (50) Algeria, Angola, Austria, Azerbaijan, Belgium, Bosnia
and Herzegovina, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark,
Egypt, Equatorial Guinea, EU, Finland, France, Germany, Ghana, Greece,
Holy See, Hungary, India, Ireland, Israel, Italy, Japan, Kazakhstan,
South Korea, Latvia, Lebanon, Morocco, Netherlands, Norway, Pakistan,
Philippines, Poland, Portugal, Romania, Russia, Saudi Arabia, Spain,
Sri Lanka, Sweden, Switzerland, Thailand, Tunisia, Turkey, Ukraine, UK,
Yemen