Which was a direct affect of world war 1 on America?

A direct effect of World War I on America was the significant economic boom that the country experienced due to increased production and demand for goods to support the war effort. This led to a shift from a predominantly agrarian economy to an industrial one, fostering urbanization and creating jobs. Additionally, the war spurred social changes, including the Great Migration of African Americans from the rural South to industrial cities in the North, seeking better opportunities. The war also catalyzed the U.S.'s emergence as a global power and increased its involvement in international affairs.