View images from towns across the United States taken during World War II. As the U.S. entered World War II in December 1941, the social and economic makeup of the country was about to change. Industries would need to meet the ambitious goals of the war effort. Women would leave their homes to work in factories to support the war. African Americans would face further discrimination as they sought jobs in factories. Families would ration food, gasoline, and clothing. More than 100,000 Japanese Americans would be relocated from their homes to internment camps.