

entry into World War II accelerated war production, which necessitated centralized direction on a massive scale. Millions without work once again found jobs and relative prosperity.

Lend-lease aid to Britain and the Soviet Union also expanded the economy.

With the Two Ocean Navy Act, however, which authorized the doubling of the fleet and plans to increase the Army Air Force, U.S. Over ten million Americans were unemployed and the country was operating at only one-third of its industrial capacity. When World War II broke out in 1939, the American economy lay stagnant. It brought America out of the Great Depression, accelerated the migration from rural to urban areas, and provided unprecedented opportunities for African Americans and women. World War II irrevocably changed American society.
