US Participation in World War II and its Transformation of American Society

The bombing of Pearl Harbor shattered American isolationism.
World War II, like World War I, was a total war, leveraging all national assets.
Federal spending increased dramatically (approximately 1000%).
Wartime mobilization increased GDP by 15%, effectively ending the Great Depression.
Private industries were repurposed for wartime production via the War Production Board and the Office of War Mobilization.
- Automobile factories produced planes and tanks.
- Other factories manufactured war munitions.
The US transitioned from crippling unemployment to a labor shortage.

The federal government encouraged women to work in factories to address labor shortages.
The "Rosie the Riveter" campaign presented women workers as strong and essential.
This marked a significant shift, as women were generally discouraged from industrial work before the war.
This was an overnight transformation of the American economy.

Approximately 1,000,000 black Americans joined the military.
They aimed to address racial issues and improve their status at home.
The NAACP promoted the "Double V Campaign": victory in the war and victory against racism.
Despite their efforts, black regiments remained segregated.
Some black units, like the Tuskegee Airmen, served with distinction, flying almost 1,600 combat missions.

Approximately 300,000 Mexican Americans served in the war.
Many were agricultural workers, leading to labor shortages in the fields.
The Bracero Program (1942) allowed Mexican farmworkers to enter the US for planting and harvesting without standard immigration procedures.

Almost 15,000,000 Americans served in the war.
The Selective Service Act (1940) was the first peacetime military draft in US history.

Large population of Japanese Americans, who were American citizens, lived on the West Coast.
Fear and suspicion arose due to the war with Japan.
Executive Order 9066 authorized the relocation of over 100,000 Japanese Americans to internment camps.
This applied to both immigrants and American-born citizens.
The government confiscated much of their personal property.

Fred Korematsu refused to comply with the internment order and was arrested.
The American Civil Liberties Union (ACLU) argued that forced removal violated the Fifth Amendment.
- The Fifth Amendment protects Americans from answering for crimes without the indictment of a grand jury.
The Supreme Court ruled that the Japanese relocation was constitutional based on "martial necessity" due to the perceived danger of espionage and sabotage.