United Nations Security Council
The UN officially came into existence on 24 October 1945 upon ratification of the Charter by the five then-permanent members of the Security Council and by a majority of the other 46 signatories. On 17 January 1946, the Security Council met for the first time at Church House, Westminster, in London, United Kingdom.
Permanent members of the United Nations Security Council
At the UN's founding in 1945, the five permanent members of the Security Council were the French Republic, the Republic of China, the Soviet Union, the United Kingdom, and the United States. There have been two seat changes since then, although not reflected in of the United Nations Charter as it has not been accordingly amended:Additionally, France reformed its provisional government into the French Fourth Republic in 1946 and later into the French Fifth Republic in 1958, both under the leadership of Charles de Gaulle. France maintained its seat as there was no change in its international status or recognition, although many of its overseas possessions eventually became independent.