What was the organizational structure of the US army in ww2?

During World War II, the U.S. Army was organized into several key components, including the Army Ground Forces, Army Air Forces, and Army Service Forces. The Army Ground Forces were primarily responsible for land operations, while the Army Air Forces handled aerial combat and support. The structure was hierarchical, with the Chief of Staff of the Army at the top, followed by various commands and divisions that coordinated different aspects of military operations. The Army also utilized a system of corps and divisions to manage tactical units effectively across multiple theaters of war.