The UN is an international organization founded on 24 October 1945 with the purpose of maintaining global peace and security. The UN operates with a consensus-based system. The membership is divided into permanent members and rotational members. The Permanent Membership is made up of member states with the right to veto and an annual budget of nearly US$35 billion. The main organs of the UN are the General Assembly, the Security Council, and the Economic and Social Council. The UN has an estimated total resources of around US$1.3 trillion.