Fallout faction overhaul project
The United Nations was an organization comprised of many of the world countries prior to 2052 and was an organization created in order to settle international disputes.
The United Nations entered into force of its Charter on October 24, 1945. In May 2052, the United Nations began to collapse, due to the start of the Resource Wars following the European Commonwealth's military intervention in the Middle East. The oil-rich states of the Middle East had raised crude oil prices to near confiscatory levels in light of the growing global petroleum shortage. Facing an economic disaster because of European nations' heavy reliance on imported Middle Eastern oil, the European Commonwealth had invaded the Middle East to force its states to lower oil prices or to seize their remaining reserves of petroleum. The United Nations actively tried to restore the peace with nothing to show for their efforts. As natural resource pressures grew and the United Nations' impotence to maintain a stable international order became clear, many member nations withdrew from the organization, prepared to use military force to defend what was theirs or seize what was somebody else's. The United Nations General Assembly finally disbanded the organization on July 27, 2052 after the majority of its member-states had withdrawn from it. Its last Secretary-General was a Japanese diplomat, Sakugama Okiri. It's former headquarters in New York were then sold to a major toy retailer to be transformed into a superstore. 
- Fallout Bible 0#Timeline repair: Second strike: "2052 May-July The United Nations, already suffering, begins to collapse. In a series of heated debates, many nations withdraw from the organization as the UN tries to keep the peace. At the end of July, the United Nations is disbanded."