Roles in the Corps

There are hundreds of ways to serve, and every Marine trains in an area of expertise that contributes to the success of our missions.
Whatever their expertise or field of training, Marines are ready to transition from mission to mission at a moment's notice.

Air Intelligence Officer

Air Intelligence Officers function in a variety of intelligence billets located within the air wing. Billets include Targeting Officer, Collections Officer, Dissemination Officer, S-2 Officer of a fixed-wing or rotary-wing squadron and Intelligence Officer at an intelligence battalion.

Specialized Training
  • Aviation Intel Officer Course
    Dam Neck, VA
    8 weeks
  • Weapons & Tactics Instructor Course*
    Yuma, AZ
    6 weeks
  • Joint Targeting School*
    Dam Neck, VA
    2 weeks
  • Intel Collection Manager's Course*
    Bolling, VA
    5 weeks
  • SERE School*
    Brunswick, ME
    2 weeks

* Desired but not required for MOS.

Within the MAGTF

The Air Intelligence Officer is the primary staff officer of the Aviation Combat Element (ACE) and serves as the principal advisor to the ACE Commanding Officer. The Air Intelligence Officer researches and briefs on various topics from weather forecasts to enemy air defenses. Marines who excel in this MOS have strong analytical, public speaking, and computer skills.

Beyond Your First Tour

Upon augmentation and three or more years of intelligence experience, all Marine Corps Intelligence Officers are redesignated as MAGTF Intelligence Officers. The MOS is granted upon attending the MAGTF Intelligence Officer Course (MIOC) at NMITC in Dam Neck, Virginia. After qualification, the officer can be assigned to any level of the Marine Corps, external billets (mostly US Navy billets), joint intelligence tours and national intelligence agencies. There are also several opportunities to command intelligence organizations and units within the Marine Corps.



MAGTF refers to the unique four-part structure that organizes Marine Corps operating forces. This framework brings together Aviation, Ground and Logistics Combat elements under a central Command element. The result is a flexible, combined-arms unit with the capabilities to conduct the Marine Corps' full range of operations, from humanitarian aid and disaster relief to projection of power from the sea. 

Many Roles. One Mission.

The Marine Corps is only as capable as each and every Marine. That's why all Marines have a specific role for which they are optimally trained, in support of the overall mission.



A MEU, or Marine Expeditionary Unit, is the smallest type of MAGTF, often providing the most substantial response in the shortest amount of time. 2,200 Marines that are trained in hundreds of areas of expertise serve on a MEU. Here is the breakdown of a MEU's makeup:

Command Element – Approximately 200 Marines. Responsible for command and control of the entire MEU.

Ground Combat Element – Approximately 1,200 Marines. A Battalion Landing Team that includes three rifle companies, a weapons company, a battery of artillery and platoons of the following: combat engineers, light armored reconnaissance, tanks, Force Reconnaissance and amphibious assault vehicles.

Aviation Combat Element – Approximately 500 Marines. A MEU's ACE is built around a medium tilt-rotor squadron, reinforced by CH-53E heavy lift helicopters, light attack helicopters and Harrier attack jets. The result is a squadron of 25 to 30 aircraft.

Logistics Combat Element – Approximately 300 Marines. Provides supply, transportation, maintenance and additional support for the MEU.


MEUs deploy aboard an Amphibious Ready Group (ARG): Three naval ships specifically designed to provide the Marines with a mobile base of operations. See here what serving aboard a MEU entails.