The United Nations is an intergovernmental international organization composed of sovereign countries, which was founded after the Second World War. 1945101On October 24th, the Charter of the United Nations signed in San Francisco came into effect and the United Nations was formally established.

The purposes of the United Nations are: to maintain international peace and security; Develop friendly international relations on the basis of respecting the principle of equal rights and self-determination of all peoples; International cooperation solves international problems of an economic, social, cultural and humanitarian nature and promotes respect for human rights and fundamental freedoms of all mankind.

The United Nations has 193 Member States: 39 in Asia, 54 in Africa, 28 in Eastern Europe and the Commonwealth of Independent States, 23 in Western Europe, 33 in Latin America, and 0/6 in North America and Oceania, including all internationally recognized sovereign countries. There are two observer countries, and international organizations, non-governmental organizations and entities are also invited to participate in United Nations affairs.

The United Nations is headquartered in new york, USA, and has offices in Geneva, Switzerland, Vienna, Austria, Nairobi, Thailand, Addis Ababa, Lebanon and Santiago, Chile.

The United Nations has six working languages: Chinese, English, French, Russian, Arabic and Spanish. The chief executive of the United Nations is the Secretary-General of the United Nations, and antonio guterres is now the chief executive.