The roots of the Nazis’ success lay in the failure of the German political system to produce a viable, nationwide conservative party uniting both Catholics and Protestants on the right; in the historic weakness of German liberalism; in the bitter resentments of almost all Germans over the loss of the war and the harsh terms of the Treaty of Versailles; in the fear and disorientation provoked in many middle-class Germans by the social and cultural modernism of the Weimar years, and the hyperinflation of 1923.