June 26: The United Nations Charter is signed in San Francisco in 1945.

The UN Charter is the founding treaty of the United Nations, signed in San Francisco on June 26, 1945, by 50 of the 51 original members. Poland signed the Treaty two months later. It's actually a constituent treaty to which all members are obliged to respect and fulfill their items.

Peter Fraser signs the UN Charter, 1945

The Treaty states that the United Nations prevail over any other treaty, commitment or obligation, which is purchased by some of its members out of the obligations of the Charter of the United Nations.

UN Charter

In other words, there should be an international treaty that exceeds its obligations by signing the UN Charter. There are now 193 member countries of the UN, with the exception of the Vatican State who has chosen to be a permanent observer disenfranchised.

World War II poster from the United States on the UNITED NATIONS – PREAMBLE TO THE CHARTER OF THE UNITED NATIONS

The Organization's fundamental principle of sovereignty and equality among all nations: a country one vote in the General Assembly.

Chairman of the Delegation from Brazil, signing the UN Charter at a ceremony held at the Veterans' War Memorial Building on June 26, 1945.

Chapter 5 of the Charter contains provisions that establish the Security Council with five permanent members: China, United States, France, Russia and the United Kindom. Besides, there are 10 attending members who are not permanently elected by the General Assembly to serve a term of two years, without the possibility of immediate re-election.

The Treaty emphasizes the contribution of its members with the maintenance of international peace and security. Furthermore supposedly it seeks "equitable geographical distribution", etc...

Birth Of United Nations 26 June 1945, Representatives of 50 countries sign the charter of the United Nations at a conference in San Francisco UN officially