The United Nations was established in 1945 with 51 founding member countries committed to maintaining international peace and security through cooperation. The UN has 192 member countries and four basic principles: maintaining peace, developing friendly relations between nations, international cooperation, and respect for human rights. The UN is not a world government and all member states have an equal voice and vote. The main UN bodies are the General Assembly, Security Council, Economic and Social Council, Trusteeship Council, Secretariat, and International Court of Justice.