The Soviet occupation of Austria , 1945 – 1955 . At the end of the war , Austria and Vienna were divided into 4 zones of occupation , following the terms of the Potsdam Conference . The Soviet Union expropriated over 450 businesses , formerly German-owned , and established Administration for Soviet Property in Austria , or USIA . This accounted for less than 10 % of the Austrian workforce at the peak in 1951 , and less than 5 % of the Austrian GDP at that time
Potsdam Conference
Potsdam Conference
Military occupations by the Soviet Union