The United Nations is the most representative international intergovernmental organization in the contemporary international society. Since the establishment of 1945, the United Nations has experienced more than 60 ups and downs. The United Nations is not a "world government" and has its limitations in maintaining peace and promoting development. 1946 65438+ 10/0 February 14, the first UN General Assembly was held in London. 5 1 representatives of founding Member States attended the meeting, and the United Nations organizational system officially began to operate. The purpose of the United Nations is 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; In order to carry out international cooperation to solve international problems of an economic, social, cultural and humanitarian nature and promote respect for human rights and fundamental freedoms of all mankind, the United Nations has six main organs: the General Assembly, the Security Council, the Economic and Social Council, the Trusteeship Council, the International Court of Justice and the Secretariat. The United Nations General Assembly is composed of all Member States and holds a regular session every year. The new regular session opens in September every year and usually lasts until the middle and late February of 65438+. The General Assembly may decide to adjourn temporarily during a session and resume later, but it must close before the opening of the next regular session. According to the Charter, the General Assembly has the right to discuss any issue or matter within the scope of the Charter and make recommendations to Member States and the Security Council. The Security Council consists of five permanent members: China, France, Russia, Britain and the United States, and 10 non-permanent members elected according to the principle of regional distribution. According to the Charter, the Security Council has the primary responsibility for maintaining international peace and security. The Secretariat consists of the Secretary-General and United Nations staff. Its duty is to serve the United Nations and its subsidiary bodies and to implement the programmes and policies formulated by these bodies. The Secretary-General is the highest administrative head of the United Nations, and the current Secretary-General is Kofi Annan of Ghana. In addition, the United Nations has established many different boards, committees or other bodies as required. The headquarters of the United Nations is located in new york, USA.