After the war, Vienna was part of Soviet-occupied Eastern Austria until September 1945. As in Berlin, Vienna in September 1945 was divided into sectors by the four powers: the US, the UK, France, and the Soviet Union and supervised by an Allied Commission. The four-power occupation of Vienna differed in one key respect from that of Berlin: the central area of the city, known as the first district, constituted an "international zone" in which the four powers alternated control on a monthly basis. The control was policed by the four powers on a "de facto" day-to-day basis, the famous "four soldiers in a jeep" method. The Berlin Blockade of 1948 raised Western concerns that the Soviets might repeat the blockade in Vienna. The matter was raised in the UK House of Commons by MP Anthony Nutting, who asked: "What plans have the Government for dealing with a similar situation in Vienna? Vienna is in exactly a similar position to Berlin."