The four core elements of a Marine Air–Ground Task Force are: • The
Command Element (CE), a
headquarters unit organized into a MAGTF (MEU, MEB, MEF) headquarters (HQ) group, that exercises command and control (management and planning for manpower, intelligence, operations and training, and logistics functions) over the other elements of the MAGTF. The HQ group consists of
communications, intelligence, surveillance, and law enforcement (i.e., military police) detachments, companies, and battalions, and reconnaissance (Force Reconnaissance), and liaison (ANGLICO) platoons, detachments, and companies. • The
Ground Combat Element (GCE), composed primarily of
infantry units (infantry battalions organized into battalion landing teams, regimental combat teams, and Marine divisions). These organizations contain a headquarters unit that provides command and control (management and planning for manpower, intelligence, operations and training, and logistics functions) as well as scout/
sniper,
aviation liaison/forward air controller, NBC defense, communications, service (supply, motor transport, weapons maintenance, and dining facility), and Navy combat medical and chaplain's corps personnel. The GCE also contains combat support units, including
artillery,
armor (
tank, assault amphibian, and light armored reconnaissance),
combat engineer (including EOD), and
reconnaissance units. At the division level, the GCE also contains limited organic combat service support, including a truck company, a military police/law enforcement company, and the division band. • The
Aviation Combat Element (ACE), which contributes the
air power to the MAGTF includes all aircraft (
fixed wing,
helicopters, tiltrotor, and UAV) and aviation support units. The units are organized into detachments, squadrons, groups, and wings, except for low altitude air defense units, which are organized into platoons, detachments, batteries, and battalions. These units include
pilots, flight officers, enlisted aircrewmen, aviation logistics (aircraft
maintenance, aviation electronics, aviation ordnance, and aviation supply) and Navy aviation medical and chaplain's corps personnel, as well as ground-based air defense units, and those units necessary for command and control (management and planning for manpower, intelligence, operations and training, and logistics functions), aviation command and control (tactical air command, air defense control, air support control, and air traffic control), communications, and aviation ground support (e.g., airfield services, bulk fuels/aircraft refueling, crash rescue, engineer construction and utilities support, EOD, motor transport, ground equipment supply and maintenance, local security/law enforcement, and the wing band). • The
Logistics Combat Element (LCE), organized into battalions, regiments, and groups, has its own headquarters element for command and control (management and planning for manpower, intelligence, operations and training, and logistics functions) of its subordinate units and contains the majority of the
combat service support units for the MAGTF, including: heavy
motor transport, ground
supply, heavy engineer support, ground equipment maintenance, and advanced
medical and dental units, along with certain specialized groups such as
air delivery, EOD, and landing support teams. The four core elements describe types of forces needed and not actual military units or commands. The basic structure of the MAGTF never varies, though the number, size, and type of Marine Corps units composing each of its four elements will always be mission dependent. The flexibility of the organizational structure allows for one or more subordinate MAGTFs to be assigned.
Seabees of the
U.S. Navy may be deployed in support of a MAGTF. ==Types==