On December 7, 1941, following the Japanese bombing of Pearl Harbor, the United States declared war on Japan. Three days later, after Germany and Italy declared war on it, the United States became fully engaged in the Second World War.
U.S. involvement in the Second World War was quickly followed by a massive mobilization effort. With millions of men and women serving overseas in the nation's armed forces, most of those who remained at home dedicated themselves to supporting the war effort in whatever means were available to them.
Women, who had worked as homemakers or had held jobs outside military-related industries, took jobs in aircraft manufacturing plants, munitions plants, military uniform production factories, and so on. As the need for steel and other resources increased, American citizens participated in rationing programs, as well as recycling and scrap metal drives.
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