The World Trade Organization ("WTO", World Trade Organization - WTO) is headquartered in Geneva, Switzerland on the shores of Lake Leman. The International Olympic Committee (International Olympic Committee - IOC), referred to as the "International Olympic Committee", is headquartered in Lausanne, Switzerland, European Union

(referred to as the European Union, European Union - EU) is headquartered in Brussels, Belgium. The North Atlantic Treaty Organization (NATO), referred to as NATO, is headquartered in Brussels, Belgium. The Organization of Petroleum Exporting Countries -

OPEC), referred to as "OPEC", OPEC's headquarters is located in Vienna, Association of Southeast Asian Nations (ASEAN, referred to as ASEAN), and the ASEAN Secretariat (no title of headquarters) is located in Jakarta, the capital of Indonesia.

The Organization of American States (OAS; Organizacion de los Estados Americanos - OEA) is headquartered in Washington, USA. The African Union (AU) is headquartered in Addis, the capital of Ethiopia.

The League of Arab States - LAS (League of Arab States - LAS) is headquartered in Cairo, Egypt. Additional answers: World Trade Organization IOC Lausanne, Switzerland International Olympic Committee EU Brussels, Belgium EU NATO NATO Geneva, Switzerland OPEC Austria Vienna OPEC ASAN Indonesia

Jakarta ASEAN OAS United States Washington Organization of American States OAU Cairo Egypt African Union LAS Ethiopia Addis Ababa Arab League WTO United States New York United Nations UN continues to ask: It is not complete, such as the World UNESCO, the World Health Organization,

Environment, weather, etc.

.

.

.