Upon the outbreak of the Third World War, NATO aided the Allies of the Third World War, fighting in Europe. After the Soviet Union used the Nuclear Bomb on Anchorage, NATO and its allies held the Montpelier Conference on the possibility of peace with the Soviet Union. The United States and Canada opposed withdrawal, as they had both been attacked directly, while the coalition for peace was mostly unharmed. It was resolved at the conference to make peace with the Soviet Union, and together the members of NATO attended the Sao Paulo Peace Accords.
As the terms of the Peace Accords dictated territorial concessions to the Soviet Union, the United States and Canada withdrew from NATO, calling it an "Organization of Traitors," as said by U.S. President Harry Truman. The main leadership of NATO then fell to the United Kingdom and France, jointly.
Throughout the Cold War, NATO became increasingly irrelevant in a world increasingly dominated by the Soviet Union, being merely a European alliance. The first major NATO act after the Third World War was at the beginning of the Fourth World War, when the nations of Western Europe went along with Confederate President Mike Huckabee in declaring war on the Soviet Union. NATO was dissolved after the Soviet victory and the Geneva Peace Accords.