How'd World War 2 end the great depression in the US?

World War II helped end the Great Depression in the U.S. by significantly boosting industrial production and creating millions of jobs. The war effort required vast amounts of materials and manpower, leading to increased government spending and investment in factories. This economic mobilization reduced unemployment and stimulated consumer demand, ultimately revitalizing the economy. The combination of wartime production and innovation laid the groundwork for post-war prosperity.