United Nations Security Council
Along with the five permanent members, the Security Council of the United Nations has temporary members that hold their seats on a rotating basis by geographic region. Non-permanent members may be involved in global security briefings. In its first two decades, the Security Council had six non-permanent members, the first of which were Australia, Brazil, Egypt, Mexico, the Netherlands, and Poland. In 1965, the number of non-permanent members was expanded to ten.
Permanent members of the United Nations Security Council
There have been proposals suggesting the introduction of new permanent members. The candidates usually mentioned are Brazil, Germany, India, and Japan. They comprise the group of four countries known as the G4 nations, which mutually support one another's bids for permanent seats.