Why did the United States reject the League of Nations?

The League of Nations was established by the Treaty of Versailles and pushed strongly by President Woodrow Wilson, which was signed at the end of the First World War. To become binding on the United States, it had to be approved by the United States Senate. The purpose of the Treaty and League was to achieve global peace amongst a society of nations. However, the bill that would make America part of the League, died in Congress. People were concerned because every country in the League would be superior in some ways to our government. Many people thought that it would violate American's sovereignty. And we could be brought into wars that we had no real stake in. The upshot is the Congress never approved it.

they were afraid that it would cause another foreign war