Admiral

The admiral military rank usually is amongst the highest rank officers can obtain in a naval service organization amongst several civilizations. The rank below admiral is usually captain, and the difference between the ranks is whereas a captain usually is the commanding officer of one starship, starbase or unit, an admiral is the commanding officer of several starships (or a fleet or armada of ships). In ground-based militaries, the equivalent of this rank would usually be a general. Earth Starfleet, Federation Starfleet, the Romulan Star Empire and the Klingon Empire all use this rank in some form. The Cardassian equivalent is legate.

Ar'nal was a Romulan rank that was roughly equivalent to the rank of admiral used by other militaries. (The Dominion War Sourcebook: The Fires of Armageddon) The equivalent rank in the Rihannsu tongue was enriov. (Bait and Switch: Saith Daepahr hrrafv Llaiirevha glossary)

Starfleet uses several grades of this rank. The different grades are sometimes referred to by the number of "stars" on the respective grade's insignia. (USS Baldwin: "Frontiers")

The grades are:

• rear admiral, lower half or commodore (1 star);
• rear admiral (2 stars);
• vice admiral (3 stars);
• admiral (4 stars); and
• fleet admiral (5 stars).

Starfleet insignia

22nd century	2230s

2250s	2260s-2270s	Early 2270s (Shoulders/Sleeves)	Late 2270s-2350s (Shoulders/Sleeves)

2350s-2360s	2360s-2370s service uniform	2360s-2370s duty uniform	2370s-2380s

Early 2380s	Mid 2380s	2390s
File:ADM early (2380s).png File:Red (early 2380s).png	File:ADM (mid 2380s).png File:Red (mid 2380s).png	File:ADM (2390s).png File:Red (2390s).png

Alternate realities

2250s	2380s-2400s	2390s	29th century

Romulan admiralty

Like Starfleet, the Romulan Star Navy used several grades of the rank. (RIS Bouteina; Romulan names indicated with their Starfleet equivalents in brackets)

• Galae'Enriov (fleet admiral)
• Khre'Enriov (admiral)
• Enriov (vice admiral)
• Khre'Riov (rear admiral; either half)

Romulan insignia

Romulan Star Navy 23rd century	Romulan Star Navy 24th century

		Enlisted ranks					Etc	Officer ranks						Flag ranks
Starfleet Officers Enlisted Misc.		CR CA CN	PO3 PO2 PO1	CPO	SCPO	MCPO CMCPO FMCPO MCPOSF	WO CDT MID REC	ENS	LTJG	LT	LCDR	CDR	CAPT FCAPT	CDRE RDML RADM		VADM	ADM	FADM
Klingon Defense Force (Ground forces & navy)		Bekk	Cpl	Sgt	MSgt	SgtMaj		2nd Lt	1st Lt	Capt (HoH)	Maj	LtCol	Col	Brig ('ech)		LtGen	Gen (Sa')
			PO2	PO1	CPO	MCPO		ENS	LTJG	LT (Sogh)	LCDR	CDR (la')	CAPT (HoD)	CDRE (totlh)		VADM	ADM
Romulan ranks (Ground forces, Navy & Tal Shiar)		Trooper	Sergeant					SubLt	Lt	Capt	Maj		Cent Col	Gen				MajGen
		Uhlan	Petty officer							Cent	SCdr		Cdr	Cgen		Adm (Ar'nal)
								2nd Lt	1st Lt	Capt	Maj		Col	Gen
			Decurion					ACent (erein)	SubLt (erei'arrain)	Lt (arrain)	Cent (enarrain)	SCdr (erei'riov)	Cdr (riov)	SAdm (khre'riov)	VAdm (erei'enriov)	Adm (enriov)	HAdm (rahaen'enriov)	FAdm (khre'enriov)
Kellarian System Defense Force (Navy & Ground forces) (Star Trek: Remington)		CR CN	PO2 PO1	CPO	SCPO	MCPO		ENS	SLT	LT	SCDR	CDR	CAPT	CDRE	VADM		ADM	FADM
		PVT PFC	CPL SGT	SSG	MSG	SGM		3LT	2LT	1LT	MAJ	LTCOL	COL	MGEN	LGEN		GEN	CGEN
So'ja High Command		REC CN PVT	PO3 PO2 PO1	CPO	MC			CPL	SGT	LT	MAJ	LTCOL	COL	ADM			MADM	SADM

External links

• Admiral article at Memory Alpha, the canon Star Trek wiki.
• Admiral article at Wikipedia, the free encyclopedia.