This is a comprehensive list of all known UNSC Military Units, individual military units of the United Nations Space Command and United Nations Space Command Defense Force and their respective suborganizations. For further information on how UNSC Military units are organized, see UNSC Military Organization.
This list does not include individual starships, but a List of Starships is available.
Combatant Fleet
- 23rd Naval Air Squadron[1]
- Battlegroup 4
- Battlegroup D
- Battlegroup Phi
- Battlegroup Stalingrad
- Epsilon Eridani Defense Fleet
- Home Fleet[2]
Non-Combatant Fleet
UNSC Marine Corps
Armored
Aircraft Units
Infantry
- 9th Marine Expeditionary Force
- 405th
- 17th Marine Regiment
- 77th Marine Regiment
- Blue Five
- Blue Six
- E2-BAG/1/7
- S4/BRT/1/7
Orbital Drop Shock Troopers
- 19th Shock Troops Battalion
- 105th Drop Jet Platoon
- 105th ODST Division
- 340th ODST Combat Training Unit