United States Secretary of Defense Law and Legal Definition

The United States Secretary of Defense is the head of the U.S. Department of Defense (DoD), concerned with the armed services and military matters. This position roughly corresponds to Minister of defense in other countries. The role of the Secretary of Defense is to be the principal defense policy advisor to the President. The Secretary is responsible for the formulation of general defense policy related to all matters of direct and primary concern to the DoD, and for the execution of approved policy. The President with the approval of the Senate appoints the Secretary.