UNSC military organization
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The United Nations Space Command armed forces organize their fighting forces into manageable sizes of manpower for use in combat operations. For a complete list of all known UNSC military units, see list of UNSC military units.
UNSC Unified Ground Command[edit]
- Main article: UNSC Marine Corps
The large-unit structure of the UNSC Marine Corps appears to mirror the organizational structure of the United States Marine Corps in most distinguishable ways, however the small-unit structure is more unique and in some ways still unclear. A nearly complete chart showing the sourced known structure of the UNSC Marine Corps units can be seen below. As in the case of the United States Marine Corps, the UNSC Marines appear to have a very flexible organization depending on the needs of the mission. The Expeditionary force is listed as the largest deployable unit above a division, but marines also deploy in Marine Expeditionary Brigades (MEB: commanded by a brigadier general and about 16,000 marines and sailors strong) and Marine Expeditionary Units (MEU: commanded by a colonel and about 2,200 marines and sailors strong).
Similarly to the expeditionary force, they each contain a ground combat element, an air combat element, a logistics element, and a command element. The Marine Expeditionary Brigade's Ground Combat Element consists of an infantry regiment reinforced by an artillery battalion, a tank company, a combat engineer company, and reconnaissance company. Its Air Combat Element is a composite air group (the level below air wing) commanded by a colonel and a combat logistics regiment (the level below logistics group) commanded by a colonel. The Marine Expeditionary Unit's Ground Combat Element consists of an infantry battalion reinforced by an artillery battery (the equivalent of a company), a tank platoon, a combat engineer platoon, and a reconnaissance platoon. Its Air Combat Element consists of a composite air squadron (level below air group) commanded by a lt. col. Its Logistics Combat Element consists of a composite logistics battalion (level below logistics regiment) commanded by a lt. col.|rut
To be clear, Divisions, Regiments, Battalions, and corresponding air and logistics units are not permanently assigned to marine expeditionary forces, brigades, and units, but rather formed for specific task forces for a mission. For example, say the UNSC wanted to establish a base on a moon or asteroid but a force or brigade was too large for the job. It would detach an infantry battalion, tank platoon, etc. from its mother infantry division and assign these units to the MEU HQ. After the mission was over they could possibly remain with the MEU or it could be disbanded. Another possibility would be to rotate units out of the MEU back to their parent unit after some time and replace it with a fresh unit. The flexibility and adaptability of the system clearly shown here helps to explain why it has survived for centuries.
Current Halo canon focuses heavily on small unit interactions, with units at any strength higher than a battalion being only occasionally mentioned and never elaborated upon. This has caused a lack of information regarding the specifics of larger UNSC Marine commands. Small units structure is often referenced indirectly. The below chart shows unit strength and specifics that can be applied to all (as of yet ) known units.
| Name | No. of personnel | No. of subordinate units | Unit leader | Identification Scheme |
|---|---|---|---|---|
| Expeditionary Force[1] | 40,000-50,000 | 1 Infantry Division, 1 Air Wing (Major Gen), 1 Logistics Group (Brigadier Gen), 1 Headquarters Element[1] | Lieutenant General | Designated with a number, all Expeditionary Forces in the UNSC are on the same number system. (eg- 9th Marine Expeditionary Force) |
| Division[1] | 20,000 | 3 Infantry Regiments + 1 Artillery Regiment, 1 Headquarters Battalion, 1 Tank Battalion
1 Reconnaissance Battalion, 1 Combat Engineer Battalion |
Major General | Designated with a number, all Divisions in the UNSC are on the same number system. (eg- 21st Marine Division, 105th ODST Division) |
| Brigade | 5,000 | Unknown | Brigadier General/Colonel | Designated with a number, all Brigades in the UNSC are on the same number system. (eg- 34th Infantry Brigade, 8th Armored Brigade) |
| Regiment[2] | 3,200 | 3 Infantry Battalions, 1 Headquarters and Service Company | Colonel | Designated with a number, all Regiments in the UNSC are on the same number system. (eg- 77th Marine Regiment, 506th Tank Regiment) |
| Battalion[3] | 800-1,000 | 3 Rifle Companies, 1 Weapons Company, 1 Headquarters and Service Company | Major[4]-Lieutenant Colonel[1] | Receive a numbering within the Regiment, or an independent number for special forces units (eg- 7th ODST Battalion) |
| Company[5] | 130[6]- 250[7] | 3 [7]-6 Platoons[8] | Captain[9]-First Lieutenant | Designated with a letter from the Phonetic Alphabet. (eg- Tango Company, Alpha Company) |
| Platoon[10] | 25[citation needed]-48[7] | 3 [7]- 4 Squads [8] | Gunnery Sergeant,[11] Second Lieutenant,[12] or First Lieutenant[6] | Numbered within a Company (eg- First Platoon) |
| Combat Team[13] | 10-12[14] | 2 Squads[8] | Sergeant or Staff Sergeant | Designated within Platoon by letter in Phonetic Alphabet |
| Squad[11] | 5[15][16]-8[8] | 3 Fireteams[7][14] | Corporal[17]-Staff Sergeant[7] | Numbered (using the word, not the number) within a Platoon. (eg- First Squad, Second Squad) |
| Fireteam[13] | 2[18][19]-5[13] | N/A | Corporal[20]-Staff Sergeant[7] | Designated with a letter from the phonetic alphabet within a squad, (eg- Alpha Team, Fireteam Charlie) |
Exceptions[edit]
The above system seems to fit most stated units of the UNSC armed forces, but not all unit designations are clear. Specifically, the use of unit abbreviation codes make it particularly difficult to properly identify units. An example of this is the unit 3/1 Bravo, which could possibly stand for "Bravo Company, 1st Battalion, 3rd Marine Regiment", however, "Fireteam Bravo, First Squad, Third Platoon" is just as reasonable a translation of the code. More complicated codes arose in Halo 3<