Woodrow Wilson proposed a plan for peace after World War 1 that included open diplomacy, free trade, and the League of Nations to maintain order, but the U.S. Senate rejected the Treaty of Versailles and did not join the League. Germany was forced to pay severe reparations after losing the war and blamed for its start, straining Europe's economies, until the Dawes Plan in 1924 lent Germany money to pay reparations to allies who then paid the U.S.