Since the creation of the United Nations in 1945 in the wake of World War II and the failure of the League of Nations, the geo-political world has altered dramatically. The 21st century saw the advent of asymmetrical war, non-state actors, the dissolution of the bi-polar structure of the Cold War Era, and the creation of nuclear weapons. Although the UN has moderately adapted to address these changes, it has not undergone a large reform. It cannot stay static forever. The achievement of a collective security goal, such as the abolishment of nuclear weapons would not only alter the role the UN played on the international stage, but the way in which states interact with one another within the framework of the UN. In the nuclear free world the UNs role would change to address three key issues: 1) the role of international bodies, such as the International Atomic Energy Agency, within the UN in the wake of nuclear weapon abolition, 2) the role the UN will have in implementing future laws and treaties, and 3) the need for verification methods to encourage trust and enforce the treaties that created a nuclear free world. By making these changes the UN will be able to maintain the nuclear weapon free world and address any threats to the maintenance of nuclear abolition. If it does not change, it is unlikely that the world would remain free of nuclear weapons.