Which event occurred after the US Senate failed to pass the Treaty of Versailles?

The Treaty of Versailles included the creation of the League of Nations, but the U.S. Senate did not ratify the treaty, so the United States never joined the League. Without U.S. participation and support, the League was significantly weakened. World War I had already ended before the Senate’s decision, and the Senate rejected Wilson’s approach rather than agreeing with it.

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