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.
Legal status of Germany
Since April 30, the US State Department had been actively pressuring all neutral countries that had retained diplomatic relations with Germany to prepare to close down German embassies and hand over their archives and records to the embassies of the Western Allies; and some had done so even before May 8. However, as the military capitulation of the German High Command was taken as constituting the extinction of the German state and the assumption of all state authority by the Allied Powers, all embassies remaining in neutral countries were immediately ordered by the Western Allies to be closed down, their diplomatic staff recalled and their records taken over into one or another Allied embassy. Those neutral countries that had been nominated as protecting powers in respect of Germany and the Allies under the Geneva Conventions were notified that this function had now been terminated, and were requested by the State Department to hand all embassy records and German state property in their trust over to the western Allies. All the protecting powers complied fully with the Allied demands, formally breaking off diplomatic relations; consequently the German state ceased as a diplomatic entity on 8 May 1945.