In the operational chain of command, who follows the President?

In the operational chain of command, the Secretary of Defense follows the President. This position serves as the principal assistant to the President in all matters related to the Department of Defense and is responsible for the formulation and implementation of defense policy. The Secretary of Defense acts as a bridge between the President and the military leadership, ensuring that presidential directives are carried out by the armed forces.

The Secretary of Defense has the authority to direct military operations and oversees the Combatant Commanders, who are responsible for specific operational theaters. By having the Secretary of Defense in this key role, the structure ensures that there is a clear line of authority and accountability from the President down through the military ranks.