The demands of participating in the second World War revitalized American industry and made the United States a global leader in production. The enhanced warships and aircrafts provided by the United States were crucial to securing victory for the Allied forces.
American industry provided almost two-thirds of all the Allied military equipment produced during the war: 297,000 aircraft, 193,000 artillery pieces, 86,000 tanks and two million army trucks. In four years, American industrial production, already the world's largest, doubled in size.
The need for labor opened up new opportunities for women and African Americans and other minorities. Millions of Americans left home to take jobs in war plants that sprang up around the nation. Economic output skyrocketed. The war effort on the "Home Front" required sacrifices and cooperation.