Wartime casualties and postwar demobilisation weakened the UDF. Wartime berets were much fuller in cut than postwar berets. They became leaders in the postwar modernist movement. The issue of pardoning men convicted in the postwar era remained controversial. These represented the first planks of the economic infrastructure of the postwar American Lebensraum. Thatcher inherited some of the worst economic statistics of postwar Britain. Tuskegee Airmen were instrumental in postwar developments in aviation. His ideas were influential in postwar governments. During the early postwar years, tensions were high. He was mayor during the postwar British occupation. Roosevelt also raised the issue of postwar decolonization. His sound reflected the optimism of postwar African Americans. This was the first step of its postwar rearmament. This heralded a number of significant postwar European productions. Crosby influenced the development of the postwar recording industry.