Department of Defense

The Federation Department of Defense (DoD) was an executive agency of the Federation government charged with defending the United Federation of Planets, as well as its worlds and outposts from foreign aggression and domestic threats. 
The Federation Department of Defense was headed by the Federation Secretary of Defense, a cabinet-level head who reported directly to the President of the United Federation of Planets. Beneath the Department of Defense were two subordinate military department: the Federation Army and the Federation Starfleet. 
== History ==
== Organizational structure ==
The secretary of defense, appointed by the president with the advice and consent of the Federation Council, is by law the head of the department of defense.
The Department of Defense is composed of the Office of the Secretary of Defense, the Joint Chiefs of Staff, the Joint Staff, the Office of the Inspector General, the Combatant Commands, and the Military Departments (Department of the Army, and Department of Starfleet).
=== Office of the Secretary of Defense ===
The Office of the Secretary of Defense (OSD) is the secretary and their deputy's civilian staff.
OSD is the principal staff element of the secretary of defense in the exercise of policy development, planning, re