What was big three countries which called for the establishment of the league of nations?

The three major countries that called for the establishment of the League of Nations were the United States, the United Kingdom, and France. The League was proposed as part of the Treaty of Versailles after World War I to promote peace and cooperation among nations. While President Woodrow Wilson of the United States was a key advocate for the League, the U.S. ultimately did not join, which affected its effectiveness. The League aimed to prevent future conflicts through collective security and diplomatic dialogue.