Why did U.S opposed the Treaty of Versailles?

6, 1919, the Senate rejected the Treaty of Versailles based primarily on objections to the League of Nations. ... the control the league would have over the U.S. There was also a faction of the Senate known as the “irreconcilables,” led by William Borah, who opposed the Treaty of Versailles with or without reservations. read more

Many Americans opposed the Treaty of Versailles because the provision of joining a League of Nations meant an end to America's pre-war isolationism and an ongoing era of global involvement. read more

The U.S. didn’t necessarily oppose the Treaty of Versailles, so much that they did oppose the League of Nations (predecessor to United Nations) for a few reasons. America had always taken a hands-off isolationist approach towards foreign affairs at the time. read more

The U.S never ratified the Treaty of Versailles, President Wilson, although having assisted to compose the treaty, simply did not have enough political influence in U.S. congress. This resulted in the U.S. never signing the Treaty of Versailles and never joining the League of Nations, the U.S. did however, agree to a separate peace treaty with Germany in August 1921 named the Treaty of Berlin. read more