World War I ended largely due to the US joining the Allies. Defeat of the Central Powers was inevitable. The Paris Peace Conference (in Paris) was overseen by the Allied leaders. From it came the Treaty of Versailles and formalized terms of peace for the defeated Central Powers. The British and the French wanted to punish Germany so they could never wage war again and to get back what they spent to fight the war. Many groups that helped win were not included in the Treaty of Versailles for several reasons and it was primarily Great Britain, France, and the U.S. who decided what the post-WWI world would look like. The League of Nations was one of the fourteen points which was actually followed, but because the U.S. Congress did not approve the country's admittance, the U.S. did not join it. Many of the other Fourteen Points were ignored completely.