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Union Colonial Marine Special Forces Operational Command
(UCMSFOC)

Raiders
Union Marine Commandos
Orbit and Surface Strike Reconnaissance

Union Colonial Marine Main Combat Forces Command
(UCMMCFC)

Marine Expeditionary Forces Group
Marine Mechanized Corps
Marine Naval Infantry Group
Marine Infantry Corps

Union Colonial Marine Artillery Group
(UCMAG)

Marine Self Propelled Corps
Marine Surface to Surface Rocket Corps
Marine Missile Corps
Marine Aerospace Defense Group

Union Colonial Marine Aerospace Command Group
(UCMACG)

Marine Aerospace Fighter Combat Group
Marine Aerospace Attack Combat Group
Marine Aerospace Combat Transport Group