United Nations Security Council
The Security Council consists of fifteen members. The great powers that were the victors of World War II—the Soviet Union (now represented by Russia), the United Kingdom, France, China, and the United States—serve as the body's five permanent members. These permanent members can veto any substantive Security Council resolution, including those on the admission of new member states or candidates for Secretary-General. The Security Council also has 10 non-permanent members, elected on a regional basis to serve two-year terms. The body's presidency rotates monthly among its members.
United Nations Security Council Resolution 1645
The resolution then set out the composition of the commission, to include seven members of the Security Council, seven members of the United Nations Economic and Social Council, the top five providers to the United Nations budget, the top five providers to United Nations peacekeeping missions, with representation from all regional groups. It also discussed country-specific meetings of the commission, where representatives of the World Bank and International Monetary Fund, among others, could participate. The Peacebuilding Commission was encouraged to co-operate with international organisations as appropriate, and provide advice to the Council in matter with which it is seized.