If allowed to spread and escalate, however, the Ukraine-Russia war might trigger World War III. So, how does the United States deal with this dilemma? Another, more daring approach is to look at what causes war and then address the root cause of war. But in some parts of the world, we have replaced war with law and government. The world’s nations can begin this process by invoking Article 109 of the UN Charter to call for a global conference to craft a new, more effective United Nations.