The UNO stands for the United Nations Organization, an international peacekeeping organization of member nations that is designed to uphold international law, protect freedoms and human rights, and help resolve international conflicts diplomatically. It was formed in the aftermath of WWII in 1945 to try to prevent such major world wars in the future.
The UNO is composed of five major organs. They are listed and outlined below.
1. The General Assembly is the main deliberative body of the UN. Each member nation has a single representative and a single vote on procedural issues.
2. The Secretariat is the administrative body of the UN. It issues studies and reports of international interest and is headed by the Secretary General of the UN.
3. The International Court of Justice is located in The Hague in the Netherlands (not New York City). It is the major court that rules on international law and it helps solve legal disputes among member nations.
4. The Security Council is the law enforcement arm of the UN that helps keep the peace between nations. It maintains peacekeeping troops that can be deployed anywhere in the world to stop or resolve conflicts.
5. The Economic and Social Council deals with financial and social issues. It maintains human rights and tries to enable member nations to maintain a certain basic living standard for their citizens. It also deals with international issues of public health.
There formerly was a sixth organ, the Trusteeship Council, that oversaw trust territories which were former occupied territories held over from colonial days. All of the former trust territories have since declared independence to become sovereign nations, thus the Trusteeship Council was disbanded in the 1990's.