a Transmit communications between the NCA and combatant commands
b Review plans and programs for adequacy and feasibility
(d) The functions of the Military Service Chiefs are to offer advice to the President, NSC, and
Secretary of Defense. As chiefs of their respective services, each is responsible to the service secretary for the
management of the service. The service chiefs serve for four years. By custom, the vice-chiefs of the service are
delegated authority to act for their chiefs in most matters having to do with the day-to-day operation of the
services.
(e) The Office of the Joint Chief of Staff has a Joint Staff to support them. The National Security
Act of 1986 restricted the size of that staff to 1,627 military and civilian personnel. This allocation is divided
equally between the Army, Navy, and Air Force. The Marine Corps traditionally takes approximately 20 percent
of the Navy's allocation. The Chairman, OJCS appoints a Director, Joint Staff to assist in managing the staff.
1 The Joint Staff assists the Chairman with:
a Unified strategic direction of the combatant forces
b Unified operation of the combatant commands
c Integration into an efficient team of land, naval and air forces.
2 The staff is organized into 10 directorates:
Manpower and Personnel Directorate (J-1)
Operations Directorate (J-3)
Logistics Directorate (J-4)
Strategic Plans and Policy Directorate (J-5)
Command, Control and Communications Directorate (J-6)
Operational Plans and Interoperability Directorate (J-7)
Force Structure, Resource, and Assessment Directorate (J-8)
Directorate of Information and Resource Management
Advisor for Mapping, Charting, and Geodesy Support
Office of the Inspector General
In addition to these directorates, the Directorate for JCS Support of the Defense Intelligence Agency supplies the
Joint Staff and the Chairman with intelligence support, but is not a member of the Joint Staff.
(f) Organizations reporting to the Secretary of Defense through the Chairman, JCS.
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