Saar Protectorate (light blue) in the west under the control of France.
Berlin is the quadripartite area shown within the red Soviet zone.
The powers at Potsdam approved the detachment from 'Germany as a whole' of the German eastern territories east of the Oder–Neisse line; with the exact line of the boundary to be determined at a final German Peace Treaty.
The Soviet Military Administration in Germany was headquartered in Berlin-Karlshorst.
At the end of the Second World War, 75,000 Belgian soldiers were serving in the Allied armies in Germany, mostly within military units raised after Liberation of Belgium in September 1944.
This treaty was expected to confirm the "shifting westward" of Poland's borders (back to approximately as they were before 1722), as the United Kingdom and the United States committed themselves to support in any future peace treaty the permanent incorporation of former eastern German territories into Poland and the Soviet Union.
From March 1945 to July 1945, these former eastern territories of Germany had been administered under Soviet military occupation authorities, but following the Potsdam Conference they were handed over to Soviet and Polish civilian administrations and ceased to constitute part of Allied-occupied Germany.