Question

What provision of the Treaty of Versailles brought the most opposition in the United States? joining the League of Nations forcing Germany to pay reparations increasing national self-determination creating more colonies for Great Britain and France

Answer 1

I'd say joining the League. There was backlash in the Senate over that and, ultimately as a result, the US did not sign the Treaty. A separate treaty with Germany was signed instead by the United States (everyone else signed onto the Treaty of Versailles such as France and Great Britain).