League of Nations: was an organization made to resolve international conflicts to help create peace, Woodrow created it. Argentina, Australia, Belgium, Bolivia, the British Empire, Canada, Chile, China, Colombia, Cuba, Czechoslovakia, Denmark, El Salvador, France, Greece, Guatemala, Haiti, Honduras, India, Italy, Liberia, and so on joined the league of nations. The U.S, Saudi Arabia, Yemen, Mongolia, Nepal, and Bhutan did not join.