Which of the following represents the correct top-to-bottom order of the service chain of command?

Which of the following represents the correct top-to-bottom order of the service chain of command?

• A. Commandant; Sec Navy; Sec Defense; President
• B. President; Sec Defense; Sec Navy; Commandant
• C. Sec Navy; Commandant; Sec Defense; President
• D. Commandant; Sec Defense; Sec Navy; President

Answer: (B)

The service chain of command flows from the civilian leadership down through the military services. The President is the Commander-in-Chief, giving overarching authority. Below the President, the Secretary of Defense oversees the entire Department of Defense. Next is the Secretary of the Navy, who runs both the Navy and the Marine Corps, and finally the Commandant of the Marine Corps, the senior Marine Corps officer who reports to the Secretary of the Navy. So the correct top-to-bottom order is President → Secretary of Defense → Secretary of the Navy → Commandant of the Marine Corps. This respects the chain where the top civilian authority issues orders that pass through the defense secretary, the service secretary, and then to the service’s senior officer. Orders or policy directions never flow upward from the Commandant to the Secretary of Defense; that would reverse the established hierarchy.

The service chain of command flows from the civilian leadership down through the military services. The President is the Commander-in-Chief, giving overarching authority. Below the President, the Secretary of Defense oversees the entire Department of Defense. Next is the Secretary of the Navy, who runs both the Navy and the Marine Corps, and finally the Commandant of the Marine Corps, the senior Marine Corps officer who reports to the Secretary of the Navy. So the correct top-to-bottom order is President → Secretary of Defense → Secretary of the Navy → Commandant of the Marine Corps. This respects the chain where the top civilian authority issues orders that pass through the defense secretary, the service secretary, and then to the service’s senior officer. Orders or policy directions never flow upward from the Commandant to the Secretary of Defense; that would reverse the established hierarchy.