The Marine Corps operates within the fleet as an element of a joint or combined force. The Marine Corps' major operating forces are under the operational control of the Atlantic and Pacific fleet commanders.
The Fleet Marine Force (FMF) is a balanced force of combined arms including land, air, and service support elements of the Marine Corps. As prescribed by the National Security Act of 1947 amended in 1952 by Title 10 US Code states that the Marine Corps shall be organized to include- "...not less than three combat divisions, three air wings, and such other land combat, aviation, and other services as may be organic therein... and [to] provide fleet marine forces of combined arms, together with supporting air components, for service with the fleet in the seizure and defense of advanced naval bases and for the conduct of such land operations as may be essential to the prosecution of a naval campaign...[and to] Develop, in coordination with the Army, Navy, and Air Force, the doctrines, tactics, techniques, and equipment employed by landing forces in amphibious operations...In addition, the Marine Corps...shall perform such other duties as the President may direct."
Links to other sites on the Web
Marine Air Ground Task Force
Four Types of MAGTFs
Health Service Support Organization
Medical Officer of the USMC Homepage
Primary References for this section is the "Marine Air-Ground Task Force: A Global Capability" FMFRP 2-12 and "Health Service Support Operations" MCWP 4-11.1 See the Medical Officer of the USMC Homepage's sections on doctrine and general USMC information