As part of the division of Germany into occupation zones in 1945 , Blankenburg district was actually assigned to the British zone in accordance with the Potsdam Conference and London Protocol . But because the larger eastern part of the district was linked to the rest of the British zone only by a road and a railway , the boundary was adjusted and Blankenburg incorporated into the Soviet zone . The largest part of the district thus ended up later in East Germany and became part of the state of Saxony-Anhalt . The main part of the former Free State of Brunswick went to the British zone and thus became part of Lower Saxony
Potsdam Conference
Potsdam Conference
Blankenburg (Harz)