Final answer:
The Air Force Agency is responsible for preparing aerospace forces for CCDR requirements as part of the Department of the Air Force outlined by the National Security Act of 1947.
Step-by-step explanation:
The agency responsible for organizing, training, and equipping aerospace forces to meet combatant commander (CCDR) requirements is the Air Force Agency, which operates under the Department of the Air Force. The Air Force is one of the branches of the U.S. armed forces, which also include the Army, Navy, Marine Corps, and more recently, the Space Force. The creation of the Air Force as a separate branch was part of a larger reorganization of the U.S. military under the National Security Act of 1947, aiming to streamline governmental security operations and ensure a robust military defense and offense during the Cold War era.