The communist German Democratic Republic was established in the historic "Mitteldeutschland" ( Middle Germany ). Former German territories east of the Oder and Neisse rivers, mainly the Prussian provinces of Pomerania , East Prussia , West Prussia , Upper Silesia , Lower Silesia , the eastern Neumark of Brandenburg , and a small piece of Saxony were thus detached from Germany. To compensate Poland for the USSR's annexation of its eastern provinces, the Allies provisionally established Poland's post-war western border at the Oder–Neisse line at the Yalta Conference (1945). As a result, most of Germany's central territories became the Sowjetische Besatzungszone (SBZ, Soviet Occupation Zone). All other lands east of the Oder–Neisse line were put under Polish administration, with the exception of historic northern East Prussia , which went to the USSR. 
Hitler took a pragmatic position between the conservative and radical factions of the Nazi Party, accepting private property and allowing capitalist private enterprises to exist so long as they adhered to the goals of the Nazi state, but if a capitalist private enterprise resisted Nazi goals, he sought to destroy it.  Once the Nazis achieved power, Röhm's SA launched attacks against individuals deemed to be associated with conservative reaction, without Hitler's authorization.  Hitler considered Röhm's independent actions to be both a violation and a threat to his leadership, as well as a threat to the regime because they alienated both the conservative President Paul von Hindenburg and the conservative-oriented German Army and jeopardized the regime's relationship with them.  This resulted in Hitler purging Röhm and other radical members of the SA in what came to be known as the Night of the Long Knives .