Who was a direct effect of World War 1 on America?

A direct effect of World War I on America was the significant economic boom that occurred due to increased production for the war effort. This led to a rise in industrial jobs and contributed to the Great Migration, as many African Americans moved to northern cities for better employment opportunities. Additionally, the war catalyzed changes in women's roles, as they entered the workforce in greater numbers to fill the gaps left by men who went off to fight.