Commodore Admiral was a short lived military rank of the United States Navy that existed for less than 11 months during the year 1982. The rank of Commodore Admiral was established as the Navy's one-star admiral rank after nearly forty years of all Navy captains receiving promotion directly to the two-star position of rear admiral.
The new rank of Commodore Admiral was created both as a means to appease other branches of the military (who felt promoting O-6s directly to O-8 was unfair) and also as a means of distinguishing that Navy one-star admirals were in fact flag officers. This had been a major problem in World War II when cultural mistakes had led to several Navy commodores being regarded as senior captains by members of foreign militaries and in turn denied honors due to a U.S. admiral grade officer.
Upon its establishment, many in the leadership of the U.S. Navy felt that the rank of Commodore Admiral violated over a century of tradition and there were numerous petitions to the Chief of Naval Operations to do away with the rank. As a compromise, the rank of Commodore Admiral was changed simply to "Commodore" at the start of 1983, which itself was abolished as a rank in 1985.
The rank of Commodore Admiral is one of the rarest ranks in the history of United States Navy. Only a handful of officers, mainly those Captains promoted to O-7 during the year 1982, have ever held the position, such as Admiral Leon A. Edney, when promoted while serving as the Commandant of Midshipmen at the U.S. Naval Academy.
|United States commissioned officer and officer candidate ranks|
|Pay grade / Branch of service|| Officer|
|Air Force||Cadet / OT / OC||2d Lt||1st Lt||Capt||Maj||Lt Col||Col||Brig Gen||Maj Gen||Lt Gen||Gen||GAF|||
|Army||CDT / OC||2LT||1LT||CPT||MAJ||LTC||COL||BG||MG||LTG||GEN||GA||GAS|
|Marine Corps||Midn / Cand||2ndLt||1stLt||Capt||Maj||LtCol||Col||BGen||MajGen||LtGen||Gen|||||
|Navy||MIDN / OC||ENS||LTJG||LT||LCDR||CDR||CAPT||RDML||RADM||VADM||ADM||FADM||AN|
|Coast Guard||CDT / OC||ENS||LTJG||LT||LCDR||CDR||CAPT||RDML||RADM||VADM||ADM|||||
|Public Health Service||[OC]||ENS||LTJG||LT||LCDR||CDR||CAPT||RADM||RADM||VADM||ADM|||||
|NOAA Corps||OC||ENS||LTJG||LT||LCDR||CDR||CAPT||RDML||RADM|| VADM|||||||
Unofficial 1945 proposal for General of the Armies insignia; John J. Pershing's GAS insignia: ; George Dewey's AN insignia:
 Rank used for specific officers during World War II and Korea only, not permanent addition to rank structure
 Grade is authorized by the U.S. Code for use but has not been created
 Grade has never been created or authorized
|United States warrant officer ranks|
|Public Health Service|||||||||||
|National Oceanic and|
 Grade is authorized for use by U.S. Code but has not been created
 Grade never created or authorized
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