History of Germany during World War I
In November 1918, with internal revolution, a stalemated war, Bulgaria and the Ottoman Empire suing for peace, Austria-Hungary falling apart from multiple ethnic tensions, and pressure from the German high command, the Kaiser and all German ruling princes abdicated. On 9 November 1918, the Social Democrat Philipp Scheidemann proclaimed a Republic, in cooperation with the business and middle classes, not the revolting workers. The new government led by the German Social Democrats called for and received an armistice on 11 November 1918; in practice it was a surrender, and the Allies kept up the food blockade to guarantee an upper hand. The war was over; the history books closed on the German Empire. It was succeeded by the democratic, yet flawed, Weimar Republic.
Prussia
The Kingdom ended in 1918 along with other German monarchies that collapsed as a result of the German Revolution. In the Weimar Republic, the Free State of Prussia lost nearly all of its legal and political importance following the 1932 coup led by Franz von Papen. Subsequently, it was effectively dismantled into Nazi German "Gaue" in 1935. Nevertheless, some Prussian ministries were kept and Hermann Göring remained in his role as Minister President of Prussia until the end of World War II. Former eastern territories of Germany that made up a significant part of Prussia lost the majority of their German population after 1945 as the People's Republic of Poland and the Soviet Union both absorbed these territories and had most of its German inhabitants expelled by 1950. Prussia, deemed "a bearer of militarism and reaction" by the Allies was officially abolished by an Allied declaration in 1947. The international status of the former eastern territories of Germany was disputed until the Treaty on the Final Settlement with Respect to Germany in 1990, while its return to Germany remains a topic among far right politicians, the Federation of Expellees and various political revisionists.