Carta de la ONU

The Charter of the United Nations is the founding international treaty of the organization, and forms the basis of its internal constitution. The document was signed on June 26, 1945 at the United Nations Conference on International Organization in the Veterans Auditorium (now the Herbst Theater) of the War Veterans Memorial in San Francisco, California, United States. , and was signed by 50 of the 51 member states originally represented (Poland, the other original member, which was not represented at the conference, signed it two months later). It entered into force on October 24, 1945, after being ratified by the five permanent members of the Security Council, which are the United States, the French Republic, the United Kingdom, the Republic of China (subsequently replaced by the People's Republic of China ) and the Union of Soviet Socialist Republics (later replaced by the Russian Federation).

In addition, the Charter establishes that the obligations derived from it are placed above the obligations of other treaties (art. 103).1 Most of the countries of the world have already ratified the Charter. A notable exception is the Vatican City State, which has chosen to retain its permanent observer status and is therefore not a full signatory to the Charter.