In the Federation Starfleet, there were three distinct divisions, each of which was a grouping of officers and crewmen sharing similar skillsets and occupations. Starfleet officers wore uniforms or insignia of varying colors that identified them as belonging to one division or another. (Star Trek: The Original Series; Star Trek: The Next Generation; Star Trek films; DS9: "The Way of the Warrior", "Trials and Tribble-ations")
- Until 2270, this was known as Engineering and Support Services division. (Star Fleet Technical Manual)
Within each division were departments. Between at least the mid-22nd and the late 24th century, the composition of each division changed.
- In the 21st-century U.S. Navy, the terms were the reverse, with department being the larger unit, and division the sub-unit of the former.
In the Lyran Starfleet, the concept of division as a grouping of officers and crewmen sharing similar skillsets and occupations also existed, only that there were six divisions rather than three. (Star Trek: The Stoneship Files, Star Trek: False Vacuum)
- Command division
- Engineering division
- Medical division
- Operations division
- Sciences division
- Security division
Cardassian Union[]
A jhorgator (division) in the Cardassian military was comprised of 20,000 soldiers and was commanded by a arjagul, the Cardassian equivalent of a general. (The Dominion War Sourcebook: The Fires of Armageddon)
Dominion[]
A division in the Dominion was a fleet organisation of on average 650 starships, though the figure ranged between 500 and 1,000 ships. Command of a division was given to a Vorta Sadok'toran. (The Dominion War Sourcebook: The Fires of Armageddon)
There also existed a division in the Dominion's ground forces. Commanded by a Hentek'atorn a division was comprised of three regiments and numbered 19,684 Jem'Hadar. It was the largest unit of organisation used by the Dominion during the Dominion War. (The Dominion War Sourcebook: The Fires of Armageddon)
Klingon Defense Force[]
A division in the Klingon Defense Force during the Dominion War was comprised of 10,000 warriors under the command of a Sa' (general). (The Dominion War Sourcebook: The Fires of Armageddon)
Lyran Starfleet Security[]
A division in the Lyran Starfleet Security ground forces during the ISC War of Pacification comprised 7,000-10,000 soldiers and was commanded by a major general. (Star Trek: False Vacuum)
Romulan Star Empire[]
A Keth'val (division) in the Romulan military was commanded by a general and comprised of 20,000-30,000 soldiers. (The Dominion War Sourcebook: The Fires of Armageddon)
Starfleet Ground Forces[]
A division in the Starfleet Ground Forces was made up of between two and five brigades, numbering between 25,000 to 40,000 troops. A division was commanded by a General. (The Dominion War Sourcebook: The Fires of Armageddon)
Starfleet Marine Corps[]
A division in the Starfleet Marine Corps consisted of two or more brigades. There were seven divisions in the SFMC. (Starfleet International)
| United Federation of Planets Starfleet Marine Corps elements |
|---|
  SFMC Divisions • Marine brigades • Marine regiments • Marine battalions • Marine Companies • Marine expeditionary units • Marine Strike Groups |
External link[]
- Division article at Memory Alpha, the canon Star Trek wiki.