World War II led to significant changes to Australian society. Economically, the war accelerated the development of Australia's manufacturing industry and led to a large fall in unemployment. The impact of World War II changed Australian society, and contributed to the development of a more cosmopolitan society in which women were able to play a larger role. The war also resulted in a greater maturity in Australia's approach to international affairs, as demonstrated by the development of a more independent foreign policy and the encouragement of mass immigration after the war.