profession, so medical graduates had good job prospects. After the war, the United States Strategic Bombing Survey concluded Germany had obtained 104 billion Reichsmarks in the form of occupation costs and other wealth transfers from occupied Europe, including two-thirds of the gross domestic product of Belgium and the Netherlands. Germany regained control of the Saarland through a referendum held in 1935 and annexed Austria in the Anschluss of 1938. "Declaration Regarding the Defeat of Germany and the Assumption of Supreme Authority with Respect to Germany and Supplementary Statements". The Nazis used propaganda to promulgate the concept of Rassenschande race defilement to justify the need for racial laws.