Political map of Europe & the Mediterranean 11 November 1918 (Armistice Day): Following the German Revolution of November 1918, a republic (Weimar Republic) was proclaimed and the Kaiser (Kaiser Wilhelm II) fled the country. On November 11, the new German government signed an armistice (Armistice with Germany) with the Allies (Allies of World War I). The Great War (World War I) was at an end, but chaos still reigned across much of Europe.