German Empire
The high command under Paul von Hindenburg and Erich Ludendorff increasingly controlled the country, but in October after the failed offensive in spring 1918, the German armies were in retreat, allies Austria-Hungary and the Ottoman Empire had collapsed, and Bulgaria had surrendered. The Empire collapsed in the November 1918 Revolution with the abdications of its monarchs. This left a postwar federal republic and a devastated and unsatisfied populace, which later led to the rise of Adolf Hitler and Nazism.
Kapp Putsch
After Germany had lost World War I (1914–1918), the German Revolution of 1918–1919 ended the monarchy and the German Empire was abolished and a democratic system, the Weimar Republic, was established in 1919 by the Weimar National Assembly. Right-wing nationalist and militarist circles opposed the new republic and promoted the stab-in-the-back myth, claiming that the war had only been lost because the brave efforts of the undefeated German military had been undermined by civilians at home.