Inside Germany, the United States was another enemy and denounced as a false liberator that wanted to dominate Europe itself. As the war ended, however, the German people embraced Wilsonian promises of the just peace treaty. At the Paris Peace Conference of 1919, Wilson used his enormous prestige and co-operated with British Prime Minister David Lloyd George to block some of the harshest French demands against Germany in the Treaty of Versailles. Wilson devoted most of his attention to establishing the League of Nations, which he felt would end all wars. He also signed a treaty with France and Britain to guarantee American support to prevent Germany from invading France again. Wilson refused all compromises with the Republicans, who controlled Congress, and so the United States neither ratified the Treaty of Versailles nor joined the League of Nations.