The military of the Vulcan High Command maintained a rank structure roughly equivalent to that of the Starfleet. (ENT: "Broken Bow")
Administrator
Administrator V'Las in 2154
The administrator of the High Command had the power to authorize military action against foreign governments. (ENT: "Kir'Shara")
- Administrator V'Las
Fleet commander
Fleet commanders reported directly to the High Command. They oversaw and commanded fleet engagements. (ENT: "Kir'Shara")
Captain
A captain in 1957
Captain Oratt in 2152
A captain in 2369
Captain was the rank held by Vulcan starship commanders. (ENT: "Breaking the Ice")
Sub-commander
Sub-Commander Muroc in 2152
Sub-commander was a rank subordinate to a Vulcan captain. In dealing with Starfleet, a sub-commander was considered above the rank of commander and below the rank of captain. (ENT: "Broken Bow")
Major
Major Talok in 2154
Major was a rank held by senior Vulcan field agents. (ENT: "Kir'Shara")
- Major Talok
Subaltern
Subaltern was a rank that existed sometime before 2375. (VOY: "Infinite Regress")
- Subaltern Lorot
Sublieutenant
A sublieutenant in 2154
Sublieutenants were low-ranking members of the High Command, often manning security posts. (ENT: "Kir'Shara")
Rank insignia
Add an image to this gallery| Enlisted personnel | Commissioned officers | Generals and flag officers | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Fleet: | CRM | PO | CPO | MID CDT OC | ENS | LT JG | LT | LT CMDR | CMDR | CAPT | FCAPT | CDORE | RADM | VADM | ADM | FADM | ||||
| Military: | PVT AMN | CPL | SGT | SSGT | MSGT 1SGT | 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 | |||||||||||||||||||
Background information
The Vulcan rank system seems to have been similar to the system used by the Romulans, perhaps suggestive of a common origin. Vulcans and Romulans are the only species in Trek shown to hold the ranks of sub-commander and sublieutenant.
The ranks of commander and lieutenant have never been referenced on-screen, although their existence at some point in Vulcan history can be inferred by their subordinate ranks.
