On which two major powers did the league of nations depend on?

The League of Nations primarily depended on the support of the United States and the United Kingdom to enforce its resolutions and maintain peace. The absence of the U.S., which never joined despite President Wilson's advocacy, significantly weakened the League's influence. The United Kingdom, as a major member, played a crucial role in its operations, but its own colonial interests often conflicted with the League's goals. Ultimately, the reliance on these powers was a key factor in the League's limited effectiveness in preventing conflicts.