1. Selective Service System
The purpose of the selective service system was to expand the draft to allow for a greater number of soldiers in the U.S. military. It required every man in the U.S., age 18 to 25, to register as potential candidates for the military. This got many more young men invloved in war.
2. Women
Women were able to leave the household and work jobs helping soldiers fighting in the war thanks to the Women's Auxiliary Army Corp. Women were able to do just about anything except actually fight on the battefield, including working as nurses to aid injured soldiers and in weapon manufacturing which greatly helped men in the war.
3. Minorities
Minorities were allowed to fight in the army at this point, but they were still plagued with racism and prejudice by white soldiers who considered themselves superior and ordered these minorities around. Although they were given the ability to fight alongside white men, minorities like blacks and mexicans were always allocated into seperate units and often the first to be sent into battle resulting in numerous casualties.
4. Manufacturers
Manufacturing companies would cease to create their usual products whn the war began and instead manufacture things to aid the war effort. They would create things that were similar to what they usually manufactured to increase their efficiency, i.e. a clothing manufacturer may begin making soldiers' uniforms.
5. Office of Scientific Research and Development (OSRD)
The OSRD headed all technological and scientific development at the time and create new state-of-the-art things. These included new weapon designs and improvements on technologies like radar. They also developed substances known as pesticides to repel mosquitoes and other pests from the soldiers.
6 Entertainment industry
Hollywood's new job was to create propagandist films in order to persuade young men viewing them to join the army and to get others to aid in the war effort.
7. Office of Price Administration (OPA)
8. War Production Board (WPB)
9. Rationing