The document provides an overview of the United Nations, including:
1) It was established in 1945 after World War 2 to replace the League of Nations and maintain international peace and security.
2) It has six main organs including the General Assembly, Security Council, Economic and Social Council, Trusteeship Council, International Court of Justice, and Secretariat.
3) The UN aims to promote cooperation between countries and respect for human rights around the world.