Julius Lippert was a German Nazi Party politician who served as the Staatskommissar for Berlin from 1933 to 1937 and as its Oberbürgermeister and Stadtspräsident from 1937 to 1940.
Julius Lippert in 1938.
The Black Reichswehr was the unofficial name for the extra-legal paramilitary formation that was secretly a part of the German military (Reichswehr) during the early years of the Weimar Republic. It was formed in 1921 after the government banned the Freikorps that it had relied on until then to supplement the Reichswehr. General Hans von Seeckt thought that the Reichswehr no longer had enough men available to guard the country's borders, but the army could not be expanded because of the manpower restrictions imposed on it by the Treaty of Versailles. In order to circumvent the limitation, Seeckt created the Black Reichswehr as purportedly civilian "labour battalions" attached to regular Reichswehr units. The Arbeitskommandos received military training, provisioning and orders from the Reichswehr, although ultimately they were never involved in military action. The Black Reichswehr reached a peak membership estimated at 50,000 to 80,000 in 1923 and was dissolved the same year after a group of its members launched the failed Küstrin Putsch. Its existence became widely known in 1925 when its practice of Fememord, the extra-judicial killing of "traitors" among its ranks, was revealed to the public.
Armed Freikorps troops in Berlin in 1919: "Tank in the streets of the Reich capital"
General Fedor von Bock, who commanded the Black Reichswehr