How did WWII impact the economy of the US?

World War II significantly boosted the U.S. economy by ending the Great Depression, as the war effort increased industrial production and created millions of jobs. The demand for military supplies led to innovations in technology and manufacturing, which stimulated economic growth. Additionally, the U.S. emerged from the war as a global economic leader, with a strong manufacturing base and increased consumer spending, leading to a post-war economic boom.