Militaries were frequently divided into separate services or branches with differing operational expertise. Military personnel were usually organized hierarchically, rank often indicated by distinct uniforms and insignia.
- note: Listed as members are the most senior officers as established in canon.
Fire team • Squad • Platoon
Battery/Company • Battalion/Unit/Squadron • Regiment
Flotilla/Wing • Division/Legion • Corps
|Enlisted personnel||Commissioned officers||Generals and flag officers|
|ENS||LT JG||LT||LT CMDR||CMDR||CAPT||FCAPT||CDORE||RADM||VADM||ADM||FADM|
|2nd LT||1st LT||CAPT||MAJ||LT COL||COL||BRIG||MAJ GEN||LT GEN||GEN||MARSHAL|
|Positions:||Boatswain • Chief • Corpsman • Engineer's mate • Specialist • Technician • Yeoman||TAC • SO • 3rd • 2nd • 1st • CO • DD||Portmaster • Chief of Staff • CinC|
|Services:||Andorian • Bajoran • Cardassian • Ferengi • Jem'Hadar • Klingon • Romulan • SS • United Earth MACO • United Earth/Federation Starfleet • United States • Vulcan|
Mirror universe: Terran Empire Starfleet • Terran Empire MACO
- Bajoran Military Academy
- Cardassian Military Academy
- Imperial War College
- Romulan Intelligence Academy
- Starfleet Academy
- West Point
A line of dialogue from the first draft script of ENT: "Shadows of P'Jem" (written while the episode had the working title "Untitled Andorians Return") mentioned an army on the planet Coridan, led by Chancellor Kalev. While interrogating Jonathan Archer, Traeg asked if phase-pistols which Archer and T'Pol had been carrying were intended to be gifts for "the chancellor's army," but Archer replied they were "defensive weapons."
It was not until the second season of Star Trek: Discovery that it was established that prime universe Section 31 also possessed military capabilities as early as the 23rd century. The military capabilities of alternate reality Section 31 were already established in Star Trek Into Darkness.