United Nations System
There are 15 members of the Security Council, consisting of five veto-wielding permanent members (China, France, Russia, the United Kingdom, and the United States) and 10 elected non-permanent members with two-year terms. This basic structure is set out in Chapter V of the UN Charter. Security Council members must always be present at UN headquarters in New York so that the Security Council can meet at any time.
Reform of the United Nations Security Council
, which joined the UN in 1956, is the second-largest contributor to the UN's regular budget. Its payments had surpassed the sum of those of the United Kingdom, France, China and Russia combined for nearly two decades before 2010. Japan has been one of the largest Official development assistance donor countries. Thus, Japan, along with India, are considered the most likely candidates for two of the new permanent seats. China has stated that it was ready to support India's move for a permanent seat on the UNSC if India did not associate its bid with Japan. This may be contrary to the Indian stand since Japan and India are both members of the G4 and support each other's candidature. Japan has been elected to the Security Council for eleven terms as a non-permanent member.