Military ranks are a system of
hierarchical relationships, within
armed forces,
police
The police are a constituted body of persons empowered by a state, with the aim to enforce the law, to ensure the safety, health and possessions of citizens, and to prevent crime and civil disorder. Their lawful powers include arrest and th ...
,
intelligence agencies
An intelligence agency is a government agency responsible for the collection, analysis, and exploitation of information in support of law enforcement, national security, military, public safety, and foreign policy objectives.
Means of informatio ...
or other institutions organized along military lines. The military rank system defines dominance, authority, and responsibility in a military hierarchy. It incorporates the principles of exercising power and authority into the military
chain of command
A command hierarchy is a group of people who carry out orders based on others' authority within the group. It can be viewed as part of a power structure, in which it is usually seen as the most vulnerable and also the most powerful part.
Milit ...
—the succession of commanders superior to subordinates through which command is exercised. The military chain of command constructs an important component for organized collective action.
Uniforms denote the bearer's rank by particular insignia affixed to the uniforms on a number of countries. Ranking systems have been known for most of military history to be advantageous for military operations, in particular with regards to logistics, command, and coordination. As time went on and military operations became larger and more complex, military ranks increased and the ranking systems themselves became more complex.
Rank is not only used to designate leadership, but to establish pay-grade as well. As rank increases, pay-grade follows, but so does amount of responsibility.
Within modern armed forces, the use of ranks is almost universal.
Communist states have sometimes abolished ranks (e.g., the
Soviet Red Army
The Workers' and Peasants' Red Army ( Russian: Рабо́че-крестья́нская Кра́сная армия),) often shortened to the Red Army, was the army and air force of the Russian Soviet Federative Socialist Republic and, afte ...
1918–1935, the
Chinese People's Liberation Army 1965–1988, and the
Albanian People's Army 1966–1991), but they had to re-establish them after encountering operational difficulties of
command and control.
Ancient
Greek
From 501 BC, the
Athenians annually elected ten individuals to the rank of ''
strategos'', one for each of the ten "tribes" that had been created with the founding of the
democracy
Democracy (From grc, δημοκρατία, dēmokratía, ''dēmos'' 'people' and ''kratos'' 'rule') is a form of government in which people, the people have the authority to deliberate and decide legislation ("direct democracy"), or to choo ...
. ''Strategos'' means "army leader" and is usually translated as "
general
A general officer is an officer of high rank in the armies, and in some nations' air forces, space forces, and marines or naval infantry.
In some usages the term "general officer" refers to a rank above colonel."general, adj. and n.". OED ...
". Originally these generals worked together with the old ''
polemarch
A polemarch (, from , ''polemarchos'') was a senior military title in various ancient Greek city states (''poleis''). The title is derived from the words ''polemos'' (war) and '' archon'' (ruler, leader) and translates as "warleader" or "warlord" ...
os'' ("warlord") but over time the latter figure was absorbed into the generalship: each of the ten generals would rotate as ''polemarch'' for one day, and during this day his vote would serve as tie-breaker if necessary.
The ten generals were equal to one another. There was no hierarchy among them, however, a basic form of democracy was in effect: For example, at the
Battle of Marathon
The Battle of Marathon took place in 490 BC during the first Persian invasion of Greece. It was fought between the citizens of Athens, aided by Plataea, and a Persian force commanded by Datis and Artaphernes. The battle was the culmination of ...
in 490 BC, the generals determined the battle plan by majority vote. Particular assignments, however, might have been given to individual generals; inevitably there was a regular division of responsibilities.
The rank that was subordinate to a top general was a ''taxiarchos'' or ''
taxiarhos
Taxiarch, the anglicised form of ''taxiarchos'' or ''taxiarchēs'' ( el, ταξίαρχος or ταξιάρχης) is used in the Greek language to mean "brigadier". The term derives from ''táxis'', "order", in military context "an ordered forma ...
'', something akin to the modern
brigadier
Brigadier is a military rank, the seniority of which depends on the country. In some countries, it is a senior rank above colonel, equivalent to a brigadier general or commodore, typically commanding a brigade of several thousand soldiers. In ...
. In
Sparta
Sparta ( Doric Greek: Σπάρτα, ''Spártā''; Attic Greek: Σπάρτη, ''Spártē'') was a prominent city-state in Laconia, in ancient Greece. In antiquity, the city-state was known as Lacedaemon (, ), while the name Sparta referre ...
, however, the title was "''polemarchos''". Below this was the ''
syntagmatarchis'', which can be translated as "leader of a
regiment
A regiment is a military unit. Its role and size varies markedly, depending on the country, service and/or a specialisation.
In Medieval Europe, the term "regiment" denoted any large body of front-line soldiers, recruited or conscripted ...
" (''syntagma'') and was therefore like a modern
colonel
Colonel (abbreviated as Col., Col or COL) is a senior military officer rank used in many countries. It is also used in some police forces and paramilitary organizations.
In the 17th, 18th and 19th centuries, a colonel was typically in charge of ...
. Below him was the ''
tagmatarches
, in more archaic context transliterated as (, abbreviated as ), anglicized as Tagmatarch, is used in the Greek language to mean " Major". More precisely, it means "commander of a " ().
The rank dates to Antiquity and was also used in the Byzant ...
'', a commanding officer of a ''tagma'' (near to the modern
battalion
A battalion is a military unit, typically consisting of 300 to 1,200 soldiers commanded by a lieutenant colonel, and subdivided into a number of companies (usually each commanded by a major or a captain). In some countries, battalions are ...
). The rank was roughly equivalent to the ''
legatus
A ''legatus'' (; anglicised as legate) was a high-ranking Roman military officer in the Roman Army, equivalent to a modern high-ranking general officer. Initially used to delegate power, the term became formalised under Augustus as the officer ...
'' of a
Roman legion
The Roman legion ( la, legiō, ) was the largest military unit of the Roman army, composed of 5,200 infantry and 300 equites (cavalry) in the period of the Roman Republic (509 BC–27 BC) and of 5,600 infantry and 200 auxilia in the period of ...
. Next was the ''
lokhagos
''Lochagos'' (; abbreviated as Λγος) is used in the Greek language to mean "Captain". More precisely, it means "leader of a '' lochos''". The equivalent term in the Hellenic Army Armour & Cavalry is el, ιλάρχος, ilarchos, "leader of an ...
'', an officer who led an infantry unit called a ''lokhos'' that consisted of roughly a hundred men, much the same as in a modern
company
A company, abbreviated as co., is a Legal personality, legal entity representing an association of people, whether Natural person, natural, Legal person, legal or a mixture of both, with a specific objective. Company members share a common p ...
led by a
captain
Captain is a title, an appellative for the commanding officer of a military unit; the supreme leader of a navy ship, merchant ship, aeroplane, spacecraft, or other vessel; or the commander of a port, fire or police department, election precinct, e ...
.
A Greek cavalry (''hippikon'') regiment was called a ''hipparchia'' and was commanded by an ''
epihipparch
Epihipparch () is an Ancient Greek military title for a cavalry commander of 1,000 horses. They were powerful and respected. This unit was divided into two ''hipparchiai'' of 500. Each of these was commanded by a '' hipparchos''.
Military ranks ...
''. The unit was split into two and led by two ''hipparchos'' or
hipparch
''Hipparchus'', anglicized hipparch ( gr, ἵππαρχος, hipparchos), was the title of an ancient Greek cavalry officer, commanding a ''hipparchia'' (unit of about 500 horsemen); two such units were commanded by an ''epihipparchos
Epihipparc ...
, but Spartan cavalry was led by a ''hipparmostes''. A ''hippotoxotès'' was a mounted archer. A Greek cavalry company was led by a ''tetrarchès'' or ''tetrarch''.
The rank and file of the military in most of the Greek city states was composed of ordinary citizens. Heavily armed foot soldiers were called ''hoplitès'' or ''
hoplite
Hoplites ( ) ( grc, ὁπλίτης : hoplítēs) were citizen-soldiers of Ancient Greece, Ancient Greek Polis, city-states who were primarily armed with spears and shields. Hoplite soldiers used the phalanx formation to be effective in war with ...
s'' and a ''hoplomachos'' was a drill or weapons instructor.
Once
Athens
Athens ( ; el, Αθήνα, Athína ; grc, Ἀθῆναι, Athênai (pl.) ) is both the capital and largest city of Greece. With a population close to four million, it is also the seventh largest city in the European Union. Athens dominates ...
became a
naval
A navy, naval force, or maritime force is the branch of a nation's armed forces principally designated for naval warfare, naval and amphibious warfare; namely, lake-borne, riverine, littoral zone, littoral, or ocean-borne combat operations and ...
power, the top generals of the land armies had authority over the naval fleets as well. Under them, each
warship
A warship or combatant ship is a naval ship that is built and primarily intended for naval warfare. Usually they belong to the armed forces of a state. As well as being armed, warships are designed to withstand damage and are usually faster a ...
was commanded by a ''trièrarchos'' or ''
trierarch
Trierarch ( gr, τριήραρχος, triērarchos) was the title of officers who commanded a trireme (''triēres'') in the classical Greek world.
In Classical Athens, the title was associated with the trierarchy (τριηραρχία, ''triēr ...
'', a word which originally meant "
trireme
A trireme( ; derived from Latin: ''trirēmis'' "with three banks of oars"; cf. Greek ''triērēs'', literally "three-rower") was an ancient vessel and a type of galley that was used by the ancient maritime civilizations of the Mediterranean S ...
officer" but persisted when other types of vessels came into use. Moreover, as in modern navies, the different tasks associated with running a ship were delegated to different subordinates. Specifically, the ''kybernètès'' was the helmsman, the ''keleustēs'' managed the rowing speed, and the ''trièraulès'' was the flute player who maintained the strike rate for the oarsmen. Following further specialization, the naval ''strategos'' was replaced by a
''nauarchos'', a sea officer equating to an
admiral
Admiral is one of the highest ranks in some navies. In the Commonwealth nations and the United States, a "full" admiral is equivalent to a "full" general in the army or the air force, and is above vice admiral and below admiral of the fleet, ...
.
With the rise of
Macedon
Macedonia (; grc-gre, Μακεδονία), also called Macedon (), was an ancient kingdom on the periphery of Archaic and Classical Greece, and later the dominant state of Hellenistic Greece. The kingdom was founded and initially ruled by ...
ia under
Philip II of Macedon
Philip II of Macedon ( grc-gre, Φίλιππος ; 382 – 21 October 336 BC) was the king ('' basileus'') of the ancient kingdom of Macedonia from 359 BC until his death in 336 BC. He was a member of the Argead dynasty, founders of the ...
and
Alexander the Great
Alexander III of Macedon ( grc, wikt:Ἀλέξανδρος, Ἀλέξανδρος, Alexandros; 20/21 July 356 BC – 10/11 June 323 BC), commonly known as Alexander the Great, was a king of the Ancient Greece, ancient Greek kingdom of Maced ...
, the Greek military became professional, tactics became more sophisticated and additional levels of ranking developed. Foot soldiers were organized into heavy infantry
phalanxes
The phalanx ( grc, φάλαγξ; plural phalanxes or phalanges, , ) was a rectangular mass military formation, usually composed entirely of heavy infantry armed with spears, pikes, sarissas, or similar pole weapons. The term is particularly ...
called ''
phalangites
The Macedonian phalanx ( gr, Μακεδονική φάλαγξ) was an infantry formation developed by Philip II from the classical Greek phalanx, of which the main innovation was the use of the sarissa, a 6 meter pike. It was famously commanded ...
''. These were among the first troops ever to be drilled, and they fought packed in a close rectangular formation, typically eight men deep, with a leader at the head of each column (or file) and a secondary leader in the middle so that the back rows could move off to the sides if more frontage was needed.
A ''tetrarchia'' was a unit of four files and a ''tetrarchès'' or ''tetrarch'' was a commander of four files; a ''dilochia'' was a double file and a ''dilochitès'' was a double-file leader; a lochos was a single file and a ''lochagos'' was a file leader; a ''dimoiria'' was a half file and a ''dimoirites'' was a half-file leader. Another name for the half file was a ''hèmilochion'' with a ''hèmilochitès'' being a half-file leader.
Different types of units, however, were divided differently and therefore their leaders had different titles. For example, under a numbering system by tens, a ''dekas'' or ''dekania'' was a unit of ten led by a ''dekarchos'', a ''hekatontarchia'' was a unit of one hundred led by a ''hekatontarchos'' and a ''khiliostys'' or ''khiliarchia'' was a unit of a thousand led by a ''khiliarchos''.
The cavalry, for which Alexander became most famous (in a military sense), grew more varied. There were heavy cavalry and wing cavalry (''ilè'') units, the latter commanded by an ''ilarchos''.
Roman
The use of formalized ranks came into widespread use with the
Roman legion
The Roman legion ( la, legiō, ) was the largest military unit of the Roman army, composed of 5,200 infantry and 300 equites (cavalry) in the period of the Roman Republic (509 BC–27 BC) and of 5,600 infantry and 200 auxilia in the period of ...
s after the reforms by
Marius. Comparisons to modern ranks, however, can only be loose because the Roman army's command structure was very different from the organizational structure of its modern counterparts, which arose from the early modern, Thirty Years' War mercenary companies, rather than from the writings of fourth-century Roman writer
Vegetius
Publius (or Flavius) Vegetius Renatus, known as Vegetius (), was a writer of the Later Roman Empire (late 4th century). Nothing is known of his life or station beyond what is contained in his two surviving works: ''Epitoma rei militaris'' (also r ...
and
Caesar
Gaius Julius Caesar (; ; 12 July 100 BC – 15 March 44 BC), was a Roman people, Roman general and statesman. A member of the First Triumvirate, Caesar led the Roman armies in the Gallic Wars before defeating his political rival Pompey in Caes ...
's commentaries on his conquest of
Gaul
Gaul ( la, Gallia) was a region of Western Europe first described by the Romans. It was inhabited by Celtic and Aquitani tribes, encompassing present-day France, Belgium, Luxembourg, most of Switzerland, parts of Northern Italy (only during ...
and the civil war.
Military command properly so-called was a political office in Rome. A commander needed to be equipped with
imperium
In ancient Rome, ''imperium'' was a form of authority held by a citizen to control a military or governmental entity. It is distinct from ''auctoritas'' and ''potestas'', different and generally inferior types of power in the Roman Republic an ...
, a politico-religious concept. The
king
King is the title given to a male monarch in a variety of contexts. The female equivalent is queen, which title is also given to the consort of a king.
*In the context of prehistory, antiquity and contemporary indigenous peoples, the tit ...
who possessed it (the ''
rex sacrorum'') was strictly forbidden to have it to avoid a return to the monarchy. In the republic, commanding was confined to
consul
Consul (abbrev. ''cos.''; Latin plural ''consules'') was the title of one of the two chief magistrates of the Roman Republic, and subsequently also an important title under the Roman Empire. The title was used in other European city-states throug ...
s or (seldom) to ''
praetors
Praetor ( , ), also pretor, was the title granted by the government of Ancient Rome to a man acting in one of two official capacities: (i) the commander of an army, and (ii) as an elected '' magistratus'' (magistrate), assigned to discharge vario ...
'', or in cases of necessity a
dictator
A dictator is a political leader who possesses absolute power. A dictatorship is a state ruled by one dictator or by a small clique. The word originated as the title of a Roman dictator elected by the Roman Senate to rule the republic in times ...
. ''
Proconsuls
A proconsul was an official of ancient Rome who acted on behalf of a consul. A proconsul was typically a former consul. The term is also used in recent history for officials with delegated authority.
In the Roman Republic, military command, or ' ...
'', after the establishment of the office, were used. In imperial times, each legion was commanded by the emperor, who was technically either consul or proconsul.
The commander could appoint a deputy, a so-called ''
legate
Legate may refer to:
*Legatus, a higher ranking general officer of the Roman army drawn from among the senatorial class
:*Legatus Augusti pro praetore, a provincial governor in the Roman Imperial period
*A member of a legation
*A representative, ...
'' (''legatus''). The association of "''legatus''" with "legion" is
folk etymology
Folk etymology (also known as popular etymology, analogical reformation, reanalysis, morphological reanalysis or etymological reinterpretation) is a change in a word or phrase resulting from the replacement of an unfamiliar form by a more famili ...
, as the meaning of ''legatus'' is "proxy" or "envoy". Legates were typically drawn from the
Roman Senate
The Roman Senate ( la, Senātus Rōmānus) was a governing and advisory assembly in ancient Rome. It was one of the most enduring institutions in Roman history, being established in the first days of the city of Rome (traditionally founded in ...
for three-year terms. The political nature of high military command was even reflected here, in that legions were always subordinate to the
governor
A governor is an administrative leader and head of a polity or political region, ranking under the head of state and in some cases, such as governors-general, as the head of state's official representative. Depending on the type of political ...
, and only the second and further legions stationed in a province had their own ''legatus legionis''. The real commanders and the legates together were, in modern terms, the
general officers
A general officer is an officer of high rank in the armies, and in some nations' air forces, space forces, and marines or naval infantry.
In some usages the term "general officer" refers to a rank above colonel."general, adj. and n.". OED O ...
.
Immediately beneath the commander (or his legate) were six
military tribune
A military tribune (Latin ''tribunus militum'', "tribune of the soldiers") was an officer of the Roman army who ranked below the legate and above the centurion. Young men of Equestrian rank often served as military tribune as a stepping stone to ...
s (''tribuni militum''), five of whom were young men of
equestrian
The word equestrian is a reference to equestrianism, or horseback riding, derived from Latin ' and ', "horse".
Horseback riding (or Riding in British English)
Examples of this are:
* Equestrian sports
*Equestrian order, one of the upper classes i ...
rank and one of whom was a nobleman who was headed for the senate. The latter is called ''laticlavian'' tribune (''tribunus laticlavius'') and was second in command. If in modern
divisions the deputy commander is a
brigadier general
Brigadier general or Brigade general is a military rank used in many countries. It is the lowest ranking general officer in some countries. The rank is usually above a colonel, and below a major general or divisional general. When appointed ...
, the ''
laticlavian tribune'' can perhaps be translated with this rank, though he commanded no formation of his own. The other tribunes are called ''tribuni angusticlavii'' and are equivalent to staff officers in both senses of the term: of ranks
major
Major (commandant in certain jurisdictions) is a military rank of commissioned officer status, with corresponding ranks existing in many military forces throughout the world. When used unhyphenated and in conjunction with no other indicators ...
,
lieutenant colonel
Lieutenant colonel ( , ) is a rank of commissioned officers in the armies, most marine forces and some air forces of the world, above a major and below a colonel. Several police forces in the United States use the rank of lieutenant colone ...
,
colonel
Colonel (abbreviated as Col., Col or COL) is a senior military officer rank used in many countries. It is also used in some police forces and paramilitary organizations.
In the 17th, 18th and 19th centuries, a colonel was typically in charge of ...
, and with administrative duties. They did not command a formation of their own. The term ''military tribune'' is even sometimes translated into English as "colonel"—most notably by the late classicist
Robert Graves
Captain Robert von Ranke Graves (24 July 1895 – 7 December 1985) was a British poet, historical novelist and critic. His father was Alfred Perceval Graves, a celebrated Irish poet and figure in the Gaelic revival; they were both Celtic ...
in his ''
Claudius
Tiberius Claudius Caesar Augustus Germanicus (; 1 August 10 BC – 13 October AD 54) was the fourth Roman emperor, ruling from AD 41 to 54. A member of the Julio-Claudian dynasty, Claudius was born to Nero Claudius Drusus, Drusu ...
'' novels and his translation of
Suetonius
Gaius Suetonius Tranquillus (), commonly referred to as Suetonius ( ; c. AD 69 – after AD 122), was a Roman historian who wrote during the early Imperial era of the Roman Empire.
His most important surviving work is a set of biographies ...
' ''Twelve Caesars''—to avoid confusion with the political "
tribune
Tribune () was the title of various elected officials in ancient Rome. The two most important were the tribunes of the plebs and the military tribunes. For most of Roman history, a college of ten tribunes of the plebs acted as a check on the ...
s of the people"; in addition, they must not either be confused with the "military tribunes with consular authority", who in early republican times could replace the consuls.
The third highest officer of a legion, above the ''angusticlavian'' tribunes, was the ''
praefectus castrorum
The ''praefectus castrorum'' ("camp prefect") was, in the Roman army of the early Empire, the third most senior officer of the Roman legion after the legate (''legatus'') and the senior military tribune (''tribunus laticlavius''), both of whom w ...
''. He, too, would have a colonel's rank in modern armies, yet he differed much from the tribunes in that his office was not part of the rather administrative ''cursus'', but normally filled by former centurions. (Modern armies have a
similar distinction on a lower scale—i.e., between commissioned and non-commissioned officers.)
The fighting men in the legion were formed into "ranks", rows of men who fought as a unit. Under Marius's new system, legions were divided into ten
cohorts (''cohortes'') (roughly equivalent to
battalion
A battalion is a military unit, typically consisting of 300 to 1,200 soldiers commanded by a lieutenant colonel, and subdivided into a number of companies (usually each commanded by a major or a captain). In some countries, battalions are ...
s and immediately subject to the legion), each consisting of three ''manipula'', each of them of two centuries (a rather small
company
A company, abbreviated as co., is a Legal personality, legal entity representing an association of people, whether Natural person, natural, Legal person, legal or a mixture of both, with a specific objective. Company members share a common p ...
in modern terms), each consisting of between 60 and 160 men. Each century was led by a
centurion
A centurion (; la, centurio , . la, centuriones, label=none; grc-gre, κεντυρίων, kentyríōn, or ) was a position in the Roman army during classical antiquity, nominally the commander of a century (), a military unit of around 80 ...
(''centurio'', traditionally translated as
captain
Captain is a title, an appellative for the commanding officer of a military unit; the supreme leader of a navy ship, merchant ship, aeroplane, spacecraft, or other vessel; or the commander of a port, fire or police department, election precinct, e ...
), who was assisted by a number of junior officers, such as an ''optio''. Centuries were further broken into ten ''contubernia'' of eight soldiers each. The ''manipula'' were commanded by one of their two centurions, the cohorts by one of their three ''manipulum's'' centurions; the most senior cohort-commanding centurions was called ''primus pilus''. The ranks of centurions in the individual cohorts were, in descending order, ''pilus prior'', ''pilus posterior'', ''princeps prior'', ''princeps posterior'', ''hastatus prior'', and ''hastatus posterior''. Individual soldiers were referred to as soldiers (''milites'') or legionaries (''legionarii'').
Mongol
See
Mongol military tactics and organization
The Mongols ( mn, Монголчууд, , , ; ; russian: Монголы) are an East Asian ethnic group native to Mongolia, Inner Mongolia in China and the Buryatia Republic of the Russian Federation. The Mongols are the principal member of ...
.
Turk
There were no ranks in the modern sense of a hierarchy of titles, although the army was organized into a hierarchical command. The organization of the army was based on the decimal system, employed by
Modun Chanyu
Modu, Maodun, Modun (, from Old Chinese (220 B.C.E.): *''mouᴴ-tuən'' or *''mək-tuən'', c. 234 – c. 174 BCE) was the son of Touman and the founder of the empire of the Xiongnu. He came to power by ordering his men to kill his father in 209 B ...
. The army was built upon a squad of ten (''aravt'') led by an appointed chief. Ten of these would then compose a company of a hundred (''zuut''), also led by an appointed chief. The next unit was a regiment of a thousand (''myangat'') led by an appointed ''noyan''. The largest organic unit was a ten thousand man unit (''
tumen'') also led by an appointed ''
noyan
''Noyan'' (pl. noyad), or ''Toyon'', was a Central Asian title of authority which was used to refer to civil-military leaders of noble ancestry in the Central Asian Turkic Khanates with origins in ''Noyon'', which was used as a title of autho ...
''.
Persian
The army of ancient
Persia
Iran, officially the Islamic Republic of Iran, and also called Persia, is a country located in Western Asia. It is bordered by Iraq and Turkey to the west, by Azerbaijan and Armenia to the northwest, by the Caspian Sea and Turkmeni ...
consisted of manageable military groupings under the individual commands. Starting at the bottom, a unit of 10 was called a ''dathabam'' and was led by a ''dathapatis''. A unit of 100 men was a ''satabam'' led by a ''satapatis''. A unit of 1,000 was a ''hazarabam'' and was commanded by a ''hazarapatis''. A unit of 10,000 was a ''baivarabam'' and was commanded by a ''baivarapatis''. The Greeks called such masses of troops a ''myrias'' or ''myriad''. Among mounted troops, an ''asabam'' was a
cavalry
Historically, cavalry (from the French word ''cavalerie'', itself derived from "cheval" meaning "horse") are soldiers or warriors who fight mounted on horseback. Cavalry were the most mobile of the combat arms, operating as light cavalry ...
unit led by an ''asapatis''.
Historians have discovered the existence of the following ranks in
Parthia
Parthia ( peo, 𐎱𐎼𐎰𐎺 ''Parθava''; xpr, 𐭐𐭓𐭕𐭅 ''Parθaw''; pal, 𐭯𐭫𐭮𐭥𐭡𐭥 ''Pahlaw'') is a historical region located in northeastern Greater Iran. It was conquered and subjugated by the empire of the Med ...
n and
Sassanian
The Sasanian () or Sassanid Empire, officially known as the Empire of Iranians (, ) and also referred to by historians as the Neo-Persian Empire, was the last Iranian empire before the early Muslim conquests of the 7th-8th centuries AD. Named ...
armies:
* Commander-in-chief: ''
Eran spahbod'' (to be replaced with four ''
spahbod
''Spāhbed'' (also spelled ''spahbod'' and ''spahbad'') is a Middle Persian title meaning "army chief" used chiefly in the Sasanian Empire. Originally there was a single ''spāhbed'', called the , who functioned as the generalissimo of the Sasa ...
s'', one for each frontier of the empire during the reign of
Khosrau I
Khosrow I (also spelled Khosrau, Khusro or Chosroes; pal, 𐭧𐭥𐭮𐭫𐭥𐭣𐭩; New Persian: []), traditionally known by his epithet of Anushirvan ( [] "the Immortal Soul"), was the Sasanian Empire, Sasanian King of Kings of Iran from ...
)
* Commander of the
cavalry
Historically, cavalry (from the French word ''cavalerie'', itself derived from "cheval" meaning "horse") are soldiers or warriors who fight mounted on horseback. Cavalry were the most mobile of the combat arms, operating as light cavalry ...
: ''Aspwargan salar'' (Parthian) or ''aswaran salar'' (Sassanian)
* Commander of the archers: ''Tirbodh''
* Commander of the
infantry
Infantry is a military specialization which engages in ground combat on foot. Infantry generally consists of light infantry, mountain infantry, motorized infantry & mechanized infantry, airborne infantry, air assault infantry, and marine i ...
: ''paygan salar''
*
Castellan
A castellan is the title used in Medieval Europe for an appointed official, a governor of a castle and its surrounding territory referred to as the castellany. The title of ''governor'' is retained in the English prison system, as a remnant o ...
: ''
Argbadh'' or ''
argbod''
* Commander of a frontier march: ''Marzpawn'' (Parthian) or ''
marzban
Marzbān, or Marzpān (Middle Persian transliteration: mrzwpn, derived from ''marz'' "border, boundary" and the suffix ''-pān'' "guardian"; Modern Persian: ''Marzbān'') were a class of margraves, warden of the marches, and by extension militar ...
'' (Sassanian)
*
Marzban
Marzbān, or Marzpān (Middle Persian transliteration: mrzwpn, derived from ''marz'' "border, boundary" and the suffix ''-pān'' "guardian"; Modern Persian: ''Marzbān'') were a class of margraves, warden of the marches, and by extension militar ...
of
Central Asia
Central Asia, also known as Middle Asia, is a subregion, region of Asia that stretches from the Caspian Sea in the west to western China and Mongolia in the east, and from Afghanistan and Iran in the south to Russia in the north. It includes t ...
n marches was called ''kanarang''
Post-classical
Post-classical militaries did not have a unified rank structure; while the
feudal
Feudalism, also known as the feudal system, was the combination of the legal, economic, military, cultural and political customs that flourished in Middle Ages, medieval Europe between the 9th and 15th centuries. Broadly defined, it was a wa ...
lords were in some ways equivalent to modern officers, they didn't have a strict hierarchy—a king was conceived of as
first among equals
''Primus inter pares'' is a Latin phrase meaning first among equals. It is typically used as an honorary title for someone who is formally equal to other members of their group but is accorded unofficial respect, traditionally owing to their se ...
, not a
monarch
A monarch is a head of stateWebster's II New College DictionarMonarch Houghton Mifflin. Boston. 2001. p. 707. Life tenure, for life or until abdication, and therefore the head of state of a monarchy. A monarch may exercise the highest authority ...
as later or ancient societies understood the concept, and all nobles were theoretically equals (hence "
peers
Peers may refer to:
People
* Donald Peers
* Edgar Allison Peers, English academician
* Gavin Peers
* John Peers, Australian tennis player
* Kerry Peers
* Mark Peers
* Michael Peers
* Steve Peers
* Teddy Peers (1886–1935), Welsh international ...
"). A nobleman was obligated to bring a set number of troops when asked by his liege-lord, a king or merely a higher-ranked noble who had obtained his service by
the gift of land. The troops' lord retained at least nominal control over them—many post-classical military planning sessions involved negotiating each lord's role in the coming battle—and each lord was allowed to leave after a predetermined amount of time had passed.
High command in post-classical armies
The command structure of armies was generally loose and varied considerably. Typically, the
king
King is the title given to a male monarch in a variety of contexts. The female equivalent is queen, which title is also given to the consort of a king.
*In the context of prehistory, antiquity and contemporary indigenous peoples, the tit ...
and high-ranking lords would call out for all lords to gather their troops for a campaign. They would appoint a renowned noble to organize the assembling forces, the
marshal
Marshal is a term used in several official titles in various branches of society. As marshals became trusted members of the courts of Medieval Europe, the title grew in reputation. During the last few centuries, it has been used for elevated o ...
. The term ''
field marshal
Field marshal (or field-marshal, abbreviated as FM) is the most senior military rank, ordinarily senior to the general officer ranks. Usually, it is the highest rank in an army and as such few persons are appointed to it. It is considered as ...
'' came from the marshal then leading the army on the march, and being in charge of organizing camps and logistics. Tactics for an upcoming battle were often decided by
councils of war among the nobles leading the largest forces. Outside of campaigns, the high
constable
A constable is a person holding a particular office, most commonly in criminal law enforcement. The office of constable can vary significantly in different jurisdictions. A constable is commonly the rank of an officer within the police. Other peop ...
had authority over the local constables, and commanders of the garrisons of major castles. The high constable might have authority in the army due to his role of head of the regular cavalry.
Origins of modern ranks
As the European and Asian Middle Ages came to an end, the rank structure of post-classical armies became more formalized. The top officers were known as
commissioned officers
An officer is a person who holds a position of authority as a member of an armed force or uniformed service.
Broadly speaking, "officer" means a commissioned officer, a non-commissioned officer, or a warrant officer. However, absent context ...
because their rank came from a royal commission. Army commissions were usually reserved for those of high stature—the
aristocracy
Aristocracy (, ) is a form of government that places strength in the hands of a small, privileged ruling class, the aristocracy (class), aristocrats. The term derives from the el, αριστοκρατία (), meaning 'rule of the best'.
At t ...
of mainland Europe and the aristocracy and
gentry
Gentry (from Old French ''genterie'', from ''gentil'', "high-born, noble") are "well-born, genteel and well-bred people" of high social class, especially in the past.
Word similar to gentle imple and decentfamilies
''Gentry'', in its widest ...
of Great Britain.
The basic unit of the post-classical army was the
company
A company, abbreviated as co., is a Legal personality, legal entity representing an association of people, whether Natural person, natural, Legal person, legal or a mixture of both, with a specific objective. Company members share a common p ...
, a band of soldiers assigned (or raised) by a vassal
lord
Lord is an appellation for a person or deity who has authority, control, or power over others, acting as a master, chief, or ruler. The appellation can also denote certain persons who hold a title of the peerage in the United Kingdom, or ar ...
on behalf of ''his lord'' (in later times the king himself). The vassal lord in command of the company was a commissioned officer with the rank of
captain
Captain is a title, an appellative for the commanding officer of a military unit; the supreme leader of a navy ship, merchant ship, aeroplane, spacecraft, or other vessel; or the commander of a port, fire or police department, election precinct, e ...
. Captain was derived from the
Late Latin
Late Latin ( la, Latinitas serior) is the scholarly name for the form of Literary Latin of late antiquity.Roberts (1996), p. 537. English dictionary definitions of Late Latin date this period from the , and continuing into the 7th century in t ...
word ''capitaneus'' (meaning "head man" or
chief).
The commissioned officer assisting the captain with command of the company was the
lieutenant
A lieutenant ( , ; abbreviated Lt., Lt, LT, Lieut and similar) is a commissioned officer rank in the armed forces of many nations.
The meaning of lieutenant differs in different militaries (see comparative military ranks), but it is often sub ...
. Lieutenant was derived from the
French language
French ( or ) is a Romance language of the Indo-European family. It descended from the Vulgar Latin of the Roman Empire, as did all Romance languages. French evolved from Gallo-Romance, the Latin spoken in Gaul, and more specifically in Nor ...
; the ''lieu'' meaning "place" as in a position; and ''tenant'' meaning "holding" as in "holding a position"; thus a "lieutenant" is somebody who holds a position in the absence of their superior. When he was not assisting the captain, the lieutenant commanded a unit called a
platoon
A platoon is a military unit typically composed of two or more squads, sections, or patrols. Platoon organization varies depending on the country and the branch, but a platoon can be composed of 50 people, although specific platoons may range ...
, particularly a more specialized platoon. The word is derived from the 17th-century French ''peloton'', meaning a small ball or small detachment of men, which came from ''pelote'', a ball.
The commissioned officer carrying the (infantry) company's flag was the
ensign
An ensign is the national flag flown on a vessel to indicate nationality. The ensign is the largest flag, generally flown at the stern (rear) of the ship while in port. The naval ensign (also known as war ensign), used on warships, may be diffe ...
. The word ''ensign'' was derived from the Latin word ''insignia''. In cavalry companies the equivalent rank was
cornet
The cornet (, ) is a brass instrument similar to the trumpet but distinguished from it by its conical bore, more compact shape, and mellower tone quality. The most common cornet is a transposing instrument in B, though there is also a sopr ...
. In English usage, these ranks were merged into the single rank of
second lieutenant
Second lieutenant is a junior commissioned officer military rank in many armed forces, comparable to NATO OF-1 rank.
Australia
The rank of second lieutenant existed in the military forces of the Australian colonies and Australian Army until ...
in the 19th century.
Not all officers received a commission from the king. Certain specialists were granted a warrant, certifying their expertise as craftsmen. These
warrant officers
Warrant officer (WO) is a rank or category of ranks in the armed forces of many countries. Depending on the country, service, or historical context, warrant officers are sometimes classified as the most junior of the commissioned ranks, the most ...
assisted the commissioned officers but ranked above the non-commissioned officers (NCOs). They received their authority from superior officers rather than the king. The first NCOs were the armed servants (
men-at-arms) of the aristocracy, assigned to command, organize and train the militia units raised for battle. After years of commanding a squad, an NCO could be promoted to
sergeant
Sergeant (abbreviated to Sgt. and capitalized when used as a named person's title) is a rank in many uniformed organizations, principally military and policing forces. The alternative spelling, ''serjeant'', is used in The Rifles and other uni ...
, the highest NCO rank. While a sergeant might have commanded a squad upon promotion, he usually became a staff officer. While commissioned staff officers assisted their commander with personnel, intelligence, operations and logistics, the sergeant was a jack of all trades, concerning himself with all aspects of administration to maintain the enlisted men serving under his commander. Over time, sergeants were differentiated into many ranks as various levels of sergeants were used by the commanders of various levels of units.
A corporal commanded a
squad
In military terminology, a squad is among the smallest of military organizations and is led by a non-commissioned officer. NATO and US doctrine define a squad as an organization "larger than a team, but smaller than a section." while US Army do ...
. ''Squad'' derived from the Italian word for a "square" or "block" of soldiers. In fact, ''corporal'' was derived from the Italian ''caporal de squadra'' (head of the squad). Corporals were assisted by
lancepesades. Lancepesades were veteran soldiers; ''lancepesade'' was derived from the Italian ''lancia spezzata'' meaning broken spear—the broken spear being a metaphor for combat experience, where such an occurrence was likely. The first lancepesades were simply experienced privates; who either assisted their corporal or performed the duties of a corporal themselves. It was this second function that made armies increasingly regard their lancepesades as a grade of corporal rather than a grade of private. As a result, the rank of
lance corporal
Lance corporal is a military rank, used by many armed forces worldwide, and also by some police forces and other uniformed organisations. It is below the rank of corporal, and is typically the lowest non-commissioned officer (NCO), usually equi ...
was derived from combining lancepesade and corporal.
As the post-classical came to an end, kings increasingly relied on professional soldiers to fill the bottom ranks of their armies instead of militiamen. Each of these professionals began their careers as a
private
Private or privates may refer to:
Music
* " In Private", by Dusty Springfield from the 1990 album ''Reputation''
* Private (band), a Denmark-based band
* "Private" (Ryōko Hirosue song), from the 1999 album ''Private'', written and also recorde ...
. The private was a man who signed a private contract with the company commander, offering his services in return for pay. The money was raised through taxation; those yeomen (
smallholding
A smallholding or smallholder is a small farm operating under a small-scale agriculture model. Definitions vary widely for what constitutes a smallholder or small-scale farm, including factors such as size, food production technique or technology ...
peasants) who did not fulfill their annual 40-day militia service paid a tax that funded professional soldiers recruited from the yeomanry. This money was handed to the company commanders from the royal treasury, with the company commanders using the money to recruit the troops.
Origins of higher ranks
As armies grew larger, composed of multiple companies, one captain was granted general (overall) authority over the field armies by the king. (National armies were the armies of the kings. Field armies were armies raised by the king to enter the battle field in preparation for major battles.) In French history, ''lieutenant du roi'' was a title borne by the officer sent with military powers to represent the king in certain provinces. A ''lieutenant du roi'' was sometimes known as a ''
lieutenant général
Lieutenant general (Lt Gen, LTG and similar) is a three-star military rank (NATO code OF-8) used in many countries. The rank traces its origins to the Middle Ages, where the title of lieutenant general was held by the second-in-command on the ...
'' to distinguish him from lieutenants subordinate to mere captains. The sergeant acting as staff officer to the captain general was known as the
sergeant major general
Sergeant major general is a now mostly extinct name of military rank. A prominent example was Philip Skippon in the English New Model Army as organized by Oliver Cromwell.
Over the course of the 17th century, the increasing professionalisation o ...
. This was eventually shortened to
major general
Major general (abbreviated MG, maj. gen. and similar) is a military rank used in many countries. It is derived from the older rank of sergeant major general. The disappearance of the "sergeant" in the title explains the apparent confusion of a ...
, while
captain general
Captain general (and its literal equivalent in several languages) is a high military rank of general officer grade, and a gubernatorial title.
History
The term "Captain General" started to appear in the 14th century, with the meaning of Command ...
began to be addressed, depending on the
military branch
Military branch (also service branch or armed service) is according to common standard a subdivision of the national armed forces of a sovereign nation or state.
Types of branches
Unified armed forces
The Canadian Armed Forces is the uni ...
, as
general of the infantry General of the Infantry is a military rank of a General officer in the infantry and refers to:
* General of the Infantry (Austria)
* General of the Infantry (Bulgaria)
* General of the Infantry (Germany) ('), a rank of a general in the German Impe ...
,
general of the cavalry General of the Cavalry (german: General der Kavallerie) was a General officer rank in the cavalry in various states of which the modern states of German and Austria are successors or in other armies which used the German model. Artillery officers o ...
or
general of the artillery General of the Artillery is/was a general officer of artillery, and may be:
*General of the Artillery (Germany) and Austria-Hungary
* General of the Artillery (Imperial Russia)
* General of the Artillery (Poland)
*Feldzeugmeister (OF-8) of the Austr ...
, and these ones, over time, were shortened to simply
general
A general officer is an officer of high rank in the armies, and in some nations' air forces, space forces, and marines or naval infantry.
In some usages the term "general officer" refers to a rank above colonel."general, adj. and n.". OED ...
. This is the reason a
major
Major (commandant in certain jurisdictions) is a military rank of commissioned officer status, with corresponding ranks existing in many military forces throughout the world. When used unhyphenated and in conjunction with no other indicators ...
outranks a lieutenant, but a lieutenant general outranks a major general.
In modern times recruits attending basic training, also referred to as boot camp by some branches, are instructed in the hierarchical structure of military rank. Many new enlisted civilians find it difficult to understand the structure of general staff ranks as stated before, it becomes somewhat complicated to understand when applying basic rationale.
As armies grew bigger, heraldry and unit identification remained primarily a matter of the regiment.
Brigade
A brigade is a major tactical military formation that typically comprises three to six battalions plus supporting elements. It is roughly equivalent to an enlarged or reinforced regiment. Two or more brigades may constitute a division.
Br ...
s headed by
brigadier generals were the units invented as a tactical unit by the Swedish king
Gustavus Adolphus II
Gustavus Adolphus (9 December Old_Style_and_New_Style_dates">N.S_19_December.html" ;"title="Old_Style_and_New_Style_dates.html" ;"title="/nowiki>Old Style and New Style dates">N.S 19 December">Old_Style_and_New_Style_dates.html" ;"title="/now ...
("Gustav II Adolf", who was killed at the battle of Lützen 1632). It was introduced to overcome the normal army structure, consisting of regiments. The so-called "''brigada''" was a mixed unit, comprising infantry, cavalry and normally
artillery
Artillery is a class of heavy military ranged weapons that launch munitions far beyond the range and power of infantry firearms. Early artillery development focused on the ability to breach defensive walls and fortifications during siege ...
, designated for a special task. The size of such ''brigada'' was a reinforced company up to two regiments. The ''brigada'' was a 17th-century form of the modern "task force". In some armies "brigadier general" has been shortened to "
brigadier
Brigadier is a military rank, the seniority of which depends on the country. In some countries, it is a senior rank above colonel, equivalent to a brigadier general or commodore, typically commanding a brigade of several thousand soldiers. In ...
".
Around the end of the 16th century, companies were grouped into regiments. The officers commissioned to lead these regiments were called "
colonels
Colonel (abbreviated as Col., Col or COL) is a senior military officer rank used in many countries. It is also used in some police forces and paramilitary organizations.
In the 17th, 18th and 19th centuries, a colonel was typically in charge of ...
" (column officers). They were first appointed in Spain by King
Ferdinand II of Aragon
Ferdinand II ( an, Ferrando; ca, Ferran; eu, Errando; it, Ferdinando; la, Ferdinandus; es, Fernando; 10 March 1452 – 23 January 1516), also called Ferdinand the Catholic (Spanish: ''el Católico''), was King of Aragon and Sardinia from ...
where they were also known as "''coronellos''" (crown officers) since they were appointed by the Crown. Thus the English pronunciation of the word ''colonel''.
The first colonels were captains granted command of their regiments by commission of the king. The lieutenants of the colonel were the
lieutenant colonel
Lieutenant colonel ( , ) is a rank of commissioned officers in the armies, most marine forces and some air forces of the world, above a major and below a colonel. Several police forces in the United States use the rank of lieutenant colone ...
s. In the 17th century, the sergeant of the colonel was the
sergeant major
Sergeant major is a senior non-commissioned rank or appointment in many militaries around the world.
History
In 16th century Spain, the ("sergeant major") was a general officer. He commanded an army's infantry, and ranked about third in the ...
. These were field officers, third in command of their regiments (after their colonels and lieutenant colonels), with a role similar to the older, army-level sergeants major (although on a smaller scale). The older position became known as
sergeant major general
Sergeant major general is a now mostly extinct name of military rank. A prominent example was Philip Skippon in the English New Model Army as organized by Oliver Cromwell.
Over the course of the 17th century, the increasing professionalisation o ...
to distinguish it. Over time, the ''sergeant'' was dropped from both titles since both ranks were used for commissioned officers. This gave rise to the modern ranks of major and major general.
The full title of sergeant major fell out of use until the latter part of the 18th century, when it began to be applied to the senior non-commissioned officer of an infantry battalion or cavalry regiment.
Regiments were later split into
battalion
A battalion is a military unit, typically consisting of 300 to 1,200 soldiers commanded by a lieutenant colonel, and subdivided into a number of companies (usually each commanded by a major or a captain). In some countries, battalions are ...
s with a lieutenant colonel as a
commanding officer
The commanding officer (CO) or sometimes, if the incumbent is a general officer, commanding general (CG), is the officer in command of a military unit. The commanding officer has ultimate authority over the unit, and is usually given wide latitu ...
and a major as an
executive officer
An executive officer is a person who is principally responsible for leading all or part of an organization, although the exact nature of the role varies depending on the organization. In many militaries and police forces, an executive officer, o ...
.
Modern
Modern military services recognize three broad categories of personnel.
These are codified in the
Geneva Conventions
upright=1.15, Original document in single pages, 1864
The Geneva Conventions are four treaties, and three additional protocols, that establish international legal standards for humanitarian treatment in war. The singular term ''Geneva Conven ...
, which distinguish ''officers'', ''non-commissioned officers'', and ''enlisted men''.
Apart from
conscripted
Conscription (also called the draft in the United States) is the state-mandated enlistment of people in a national service, mainly a military service. Conscription dates back to antiquity and it continues in some countries to the present day und ...
personnel one can distinguish:
Commissioned officers
Officers
An officer is a person who has a position of authority in a hierarchical organization. The term derives from Old French ''oficier'' "officer, official" (early 14c., Modern French ''officier''), from Medieval Latin ''officiarius'' "an officer," f ...
are distinguished from other military members (or an ''officer in training'') by holding a
commission; they are trained or training as leaders and hold command positions.
Officers are further generally separated into four levels:
* General, flag, or air officers
* Field or senior officers
*
Company grade or junior officers
* Subordinate officer (
naval cadet
Officer Cadet is a rank held by military cadets during their training to become commissioned officers. In the United Kingdom, the rank is also used by members of University Royal Naval Units, University Officer Training Corps and University A ...
or
officer cadet
Officer Cadet is a rank held by military cadets during their training to become commissioned officers. In the United Kingdom, the rank is also used by members of University Royal Naval Units, University Officer Training Corps and University Ai ...
in the Canadian Forces, for example)
General, flag, and air officers
Officers who typically command units or
formation
Formation may refer to:
Linguistics
* Back-formation, the process of creating a new lexeme by removing or affixes
* Word formation, the creation of a new word by adding affixes
Mathematics and science
* Cave formation or speleothem, a secondar ...
s that are expected to operate independently for extended periods of time (i.e.,
brigade
A brigade is a major tactical military formation that typically comprises three to six battalions plus supporting elements. It is roughly equivalent to an enlarged or reinforced regiment. Two or more brigades may constitute a division.
Br ...
s and larger, or
flotilla
A flotilla (from Spanish, meaning a small ''flota'' (fleet) of ships), or naval flotilla, is a formation of small warships that may be part of a larger fleet.
Composition
A flotilla is usually composed of a homogeneous group of the same class ...
s or
squadrons of ships), are referred to variously as
general officer
A general officer is an officer of high rank in the armies, and in some nations' air forces, space forces, and marines or naval infantry.
In some usages the term "general officer" refers to a rank above colonel."general, adj. and n.". OED O ...
s (in armies, marines, and some air forces),
flag officer
A flag officer is a commissioned officer in a nation's armed forces senior enough to be entitled to fly a flag to mark the position from which the officer exercises command.
The term is used differently in different countries:
*In many countr ...
s (in navies and coast guards), or
air officer
An air officer is an air force officer of the rank of air commodore or higher. Such officers may be termed "officers of air rank". While the term originated in the Royal Air Force, air officers are also to be found in many Commonwealth nations ...
s (in some
Commonwealth
A commonwealth is a traditional English term for a political community founded for the common good. Historically, it has been synonymous with "republic". The noun "commonwealth", meaning "public welfare, general good or advantage", dates from the ...
air forces).
General-officer ranks typically include (from the most senior)
general
A general officer is an officer of high rank in the armies, and in some nations' air forces, space forces, and marines or naval infantry.
In some usages the term "general officer" refers to a rank above colonel."general, adj. and n.". OED ...
,
lieutenant general
Lieutenant general (Lt Gen, LTG and similar) is a three-star military rank (NATO code OF-8) used in many countries. The rank traces its origins to the Middle Ages, where the title of lieutenant general was held by the second-in-command on the ...
,
major general
Major general (abbreviated MG, maj. gen. and similar) is a military rank used in many countries. It is derived from the older rank of sergeant major general. The disappearance of the "sergeant" in the title explains the apparent confusion of a ...
, and
brigadier general
Brigadier general or Brigade general is a military rank used in many countries. It is the lowest ranking general officer in some countries. The rank is usually above a colonel, and below a major general or divisional general. When appointed ...
, although there are many variations like division general or (air-, ground-) force general.
Flag-officer ranks, named after the traditional practice of showing the presence of such an officer with a flag on a ship and often land, typically include (from the most senior)
admiral
Admiral is one of the highest ranks in some navies. In the Commonwealth nations and the United States, a "full" admiral is equivalent to a "full" general in the army or the air force, and is above vice admiral and below admiral of the fleet, ...
,
vice admiral and
rear admiral
Rear admiral is a senior naval flag officer rank, equivalent to a major general and air vice marshal and above that of a commodore and captain, but below that of a vice admiral. It is regarded as a two star "admiral" rank. It is often regarde ...
. In some navies, such as
Canada's
Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by total ...
, the rank of
commodore
Commodore may refer to:
Ranks
* Commodore (rank), a naval rank
** Commodore (Royal Navy), in the United Kingdom
** Commodore (United States)
** Commodore (Canada)
** Commodore (Finland)
** Commodore (Germany) or ''Kommodore''
* Air commodore ...
is a
flag rank
A flag officer is a commissioned officer in a nation's armed forces senior enough to be entitled to fly a flag to mark the position from which the officer exercises command.
The term is used differently in different countries:
*In many countries ...
.
In the
United Kingdom
The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Europe, off the north-western coast of the continental mainland. It comprises England, Scotland, Wales and North ...
and most other
Commonwealth
A commonwealth is a traditional English term for a political community founded for the common good. Historically, it has been synonymous with "republic". The noun "commonwealth", meaning "public welfare, general good or advantage", dates from the ...
air forces,
air-officer ranks usually include
air chief marshal
Air chief marshal (Air Chf Mshl or ACM) is a high-ranking air officer originating from the Royal Air Force. The rank is used by air forces of many countries that have historical British influence. An air chief marshal is equivalent to an Admir ...
,
air marshal,
air vice-marshal
Air vice-marshal (AVM) is a two-star air officer rank which originated in and continues to be used by the Royal Air Force. The rank is also used by the air forces of many countries which have historical British influence and it is sometimes ...
and
air commodore. For some air forces, however, such as those of
Canada
Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by tot ...
,
United States
The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territorie ...
and many other air forces, general officer rank titles are used. In the case of the
United States Air Force
The United States Air Force (USAF) is the air service branch of the United States Armed Forces, and is one of the eight uniformed services of the United States. Originally created on 1 August 1907, as a part of the United States Army Signal ...
, that service was once part of the U.S. Army and evolved as a separate service in 1947, carrying over its extant officer rank structure. Brazil and Argentina use a
system of general officer ranks based on the term brigadier.
In some forces, there may be one or more superior ranks to the common examples, above, that are given distinguishing titles, such as
field marshal
Field marshal (or field-marshal, abbreviated as FM) is the most senior military rank, ordinarily senior to the general officer ranks. Usually, it is the highest rank in an army and as such few persons are appointed to it. It is considered as ...
(most armies of the world, notably excluding the United States) or general of the army (mainly the United States because "marshal" is used as a peace officer's designation),
fleet admiral (
U.S. Navy
The United States Navy (USN) is the maritime service branch of the United States Armed Forces and one of the eight uniformed services of the United States. It is the largest and most powerful navy in the world, with the estimated tonnage o ...
),
Marshal of the Royal Air Force
Marshal of the Royal Air Force (MRAF) is the highest rank in the Royal Air Force (RAF). In peacetime it was granted to RAF officers in the appointment of Chief of the Defence Staff (CDS), and to retired Chiefs of the Air Staff (CAS), who were ...
, or other national air force. These ranks have often been discontinued, such as in Germany and Canada, or limited to wartime or honorific promotion, such as in the United Kingdom and the United States.
In various countries, particularly the United States, these may be referred to as "star ranks" for the number of stars worn on some rank insignia: typically one-star for brigadier general or equivalent with the addition of a star for each subsequent rank. In the United States, five stars has been the highest rank regularly attainable (excluding the
marines
Marines, or naval infantry, are typically a military force trained to operate in littoral zones in support of naval operations. Historically, tasks undertaken by marines have included helping maintain discipline and order aboard the ship (refle ...
and
coast guard
A coast guard or coastguard is a maritime security organization of a particular country. The term embraces wide range of responsibilities in different countries, from being a heavily armed military force with customs and security duties to ...
, which have traditionally served as branches of the navy in times of war and thus under the command of a fleet admiral). There also exists the specialty ranks of
General of the Armies of the United States
General of the Armies of the United States, more commonly referred to as General of the Armies, is the highest military rank in the United States Army. The rank has been conferred three times: to John J. Pershing in 1919, as a personal accola ...
and
Admiral of the Navy
Admiral is one of the highest ranks in some navies. In the Commonwealth nations and the United States, a "full" admiral is equivalent to a "full" general in the army or the air force, and is above vice admiral and below admiral of the fleet ...
which at their inception were considered senior four star officers but came to be considered
six-star rank
In the United States Armed Forces, a six-star rank is a proposed rank immediately superior to a five-star rank, possibly to be worn by the General of the Armies or Admiral of the Navy; however, this correlation was never officially recognized b ...
after the creation of five star officers. To date only one officer has held a six star rank in his lifetime,
John J. Pershing.
George Washington
George Washington (February 22, 1732, 1799) was an American military officer, statesman, and Founding Father who served as the first president of the United States from 1789 to 1797. Appointed by the Continental Congress as commander of th ...
was posthumously promoted to the post in 1976. Additionally,
Admiral George Dewey was promoted to admiral of the navy but died well before statute made it senior to an admiral of the fleet upon the latter's inception.
Some titles are not genuine ranks, but either functions assumed by generals or honorific titles. For instance, in the
French Army
The French Army, officially known as the Land Army (french: Armée de Terre, ), is the land-based and largest component of the French Armed Forces. It is responsible to the Government of France, along with the other components of the Armed For ...
''
général de corps d'armée
An army corps general or corps general is a rank held by a General officer who commands an army corps. The rank originates from the French (Revolutionary) System, and is used by a number of countries. Normally, the rank is above the divisional ge ...
'' is a function assumed by some ''
généraux de division'', and ''
maréchal de France
Marshal of France (french: Maréchal de France, plural ') is a French military distinction, rather than a military rank, that is awarded to generals for exceptional achievements. The title has been awarded since 1185, though briefly abolished (1 ...
'', which is a distinction denoting the most superior military office, but one that has often neutered the practical command powers of those on whom it is conferred. In the
United States Navy
The United States Navy (USN) is the maritime service branch of the United States Armed Forces and one of the eight uniformed services of the United States. It is the largest and most powerful navy in the world, with the estimated tonnage ...
, a
commodore
Commodore may refer to:
Ranks
* Commodore (rank), a naval rank
** Commodore (Royal Navy), in the United Kingdom
** Commodore (United States)
** Commodore (Canada)
** Commodore (Finland)
** Commodore (Germany) or ''Kommodore''
* Air commodore ...
currently is a senior
captain
Captain is a title, an appellative for the commanding officer of a military unit; the supreme leader of a navy ship, merchant ship, aeroplane, spacecraft, or other vessel; or the commander of a port, fire or police department, election precinct, e ...
commanding a
squadron
Squadron may refer to:
* Squadron (army), a military unit of cavalry, tanks, or equivalent subdivided into troops or tank companies
* Squadron (aviation), a military unit that consists of three or four flights with a total of 12 to 24 aircraft, ...
, air group, or air wing that is too small for a
rear admiral
Rear admiral is a senior naval flag officer rank, equivalent to a major general and air vice marshal and above that of a commodore and captain, but below that of a vice admiral. It is regarded as a two star "admiral" rank. It is often regarde ...
to command, although that name has historically been used as a rank. The title (not rank) of commodore can also indicate an officer who is senior to a ship's captain (since only the ship's commanding officer is addressed as captain while under way). Marine captains are sometimes referred to as major to distinguish themselves while shipboard, although this reference is not employed in the U.S. Navy or U.S. Marine Corps.
Field or senior officers
Field officer
A senior officer is an officer of a more senior grade in military or other uniformed services. In military organisations, the term may refer to any officer above junior officer rank, but usually specifically refers to the middle-ranking group of ...
s, also called "field-grade officers" or "senior officers", are officers who typically command units that can be expected to operate independently for short periods of time (i.e., infantry battalions, cavalry or artillery regiments, warships,
air squadrons). Field officers also commonly fill staff positions of superior commands.
The term ''field(-grade) officer'' is primarily used by armies and marines; air forces, navies and coast guards generally prefer the term "senior officer." The two terms are not necessarily synonymous because the former is frequently used to describe any officer who holds a command position from a platoon to a
theater
Theatre or theater is a collaborative form of performing art that uses live performers, usually actor, actors or actresses, to present the experience of a real or imagined event before a live audience in a specific place, often a stage. The p ...
.
Typical army and marine field officer ranks include
colonel
Colonel (abbreviated as Col., Col or COL) is a senior military officer rank used in many countries. It is also used in some police forces and paramilitary organizations.
In the 17th, 18th and 19th centuries, a colonel was typically in charge of ...
,
lieutenant colonel
Lieutenant colonel ( , ) is a rank of commissioned officers in the armies, most marine forces and some air forces of the world, above a major and below a colonel. Several police forces in the United States use the rank of lieutenant colone ...
,
major
Major (commandant in certain jurisdictions) is a military rank of commissioned officer status, with corresponding ranks existing in many military forces throughout the world. When used unhyphenated and in conjunction with no other indicators ...
and, in the British army, captains holding an
adjutant
Adjutant is a military appointment given to an officer who assists the commanding officer with unit administration, mostly the management of human resources in an army unit. The term is used in French-speaking armed forces as a non-commission ...
's or operations officer appointment. In many Commonwealth countries the field rank of
brigadier
Brigadier is a military rank, the seniority of which depends on the country. In some countries, it is a senior rank above colonel, equivalent to a brigadier general or commodore, typically commanding a brigade of several thousand soldiers. In ...
is used, although it fills the position held by brigadier general in other countries. In the United States Army, warrant officers who hold the rank of CW3–CW4 are field grade officers; CW5s are senior field grade officers.
Naval and coast guard senior officer ranks include
captain
Captain is a title, an appellative for the commanding officer of a military unit; the supreme leader of a navy ship, merchant ship, aeroplane, spacecraft, or other vessel; or the commander of a port, fire or police department, election precinct, e ...
and
commander
Commander (commonly abbreviated as Cmdr.) is a common naval officer rank. Commander is also used as a rank or title in other formal organizations, including several police forces. In several countries this naval rank is termed frigate captain.
...
. In some countries, the more senior rank of
commodore
Commodore may refer to:
Ranks
* Commodore (rank), a naval rank
** Commodore (Royal Navy), in the United Kingdom
** Commodore (United States)
** Commodore (Canada)
** Commodore (Finland)
** Commodore (Germany) or ''Kommodore''
* Air commodore ...
is also included. In others
lieutenant-commander
Lieutenant commander (also hyphenated lieutenant-commander and abbreviated Lt Cdr, LtCdr. or LCDR) is a commissioned officer rank in many navies. The rank is superior to a lieutenant and subordinate to a commander. The corresponding rank i ...
s, as equivalents to army and marine majors, are considered senior officers.
Commonwealth air force senior officer ranks include
group captain
Group captain is a senior commissioned rank in the Royal Air Force, where it originated, as well as the air forces of many countries that have historical British influence. It is sometimes used as the English translation of an equivalent rank i ...
,
wing commander
Wing commander (Wg Cdr in the RAF, the IAF, and the PAF, WGCDR in the RNZAF and RAAF, formerly sometimes W/C in all services) is a senior commissioned rank in the British Royal Air Force and air forces of many countries which have historical ...
, and
squadron leader
Squadron leader (Sqn Ldr in the RAF ; SQNLDR in the RAAF and RNZAF; formerly sometimes S/L in all services) is a commissioned rank in the Royal Air Force and the air forces of many countries which have historical British influence. It is also ...
, where such ranks are still used.
Company grade or junior officers
The ranks of junior officers are the three or four lowest ranks of officers. Units under their command are generally not expected to operate independently for any significant length of time. Company grade officers also fill staff roles in some units. In some militaries, however, a captain may act as the permanent commanding officer of an independent company-sized army unit, for example a signal or field engineer
squadron
Squadron may refer to:
* Squadron (army), a military unit of cavalry, tanks, or equivalent subdivided into troops or tank companies
* Squadron (aviation), a military unit that consists of three or four flights with a total of 12 to 24 aircraft, ...
, or a field artillery battery.
Typical army company officer ranks include
captain
Captain is a title, an appellative for the commanding officer of a military unit; the supreme leader of a navy ship, merchant ship, aeroplane, spacecraft, or other vessel; or the commander of a port, fire or police department, election precinct, e ...
and various grades of
lieutenant
A lieutenant ( , ; abbreviated Lt., Lt, LT, Lieut and similar) is a commissioned officer rank in the armed forces of many nations.
The meaning of lieutenant differs in different militaries (see comparative military ranks), but it is often sub ...
. Typical naval and coast guard junior officer ranks include grades of lieutenant commander, lieutenant, lieutenant junior grade, sub-lieutenant and
ensign
An ensign is the national flag flown on a vessel to indicate nationality. The ensign is the largest flag, generally flown at the stern (rear) of the ship while in port. The naval ensign (also known as war ensign), used on warships, may be diffe ...
. Commonwealth (excluding Canada) air force junior officer ranks usually include flight lieutenant, flying officer, and pilot officer.
"The [U.S.] commissioned officer corps is divided into 10 pay grades (O-1 through O-10). Officers in pay grades O-1 through O-3 are considered company grade officers. In the Army, Marine Corps, and Air Force, these pay grades correspond to the ranks of second lieutenant (O-1), first lieutenant (O-2), and captain (O-3), and in the Navy, ensign, lieutenant junior grade, and lieutenant. Officers in the next three pay grades (O-4 through O-6) are considered field grade officers. In the Army, Marine Corps, and Air Force, these pay grades correspond to the ranks of major (O-4), lieutenant colonel (O-5), and colonel (O-6), and in the Navy, lieutenant commander, commander, and captain. The highest four pay grades are reserved for general officers in the Army, Marine Corps, and Air Force, and flag officers in the Navy. The ranks associated with each pay grade are as follows: in the Army, Marine Corps, and Air Force, brigadier general (O-7), major general (O-8), lieutenant general (O-9), and general (O-10); in the Navy, rear admiral-lower half, rear admiral-upper half, vice admiral, and admiral."
Subordinate or student officer
Officers in training in the Canadian Armed Forces are either
naval cadet
Officer Cadet is a rank held by military cadets during their training to become commissioned officers. In the United Kingdom, the rank is also used by members of University Royal Naval Units, University Officer Training Corps and University A ...
for naval training or
officer cadet
Officer Cadet is a rank held by military cadets during their training to become commissioned officers. In the United Kingdom, the rank is also used by members of University Royal Naval Units, University Officer Training Corps and University Ai ...
for army or air force training.
In the US and several other western forces, officers in training are referred to as student officers, and carry the rank of cadet (army and air force) or midshipman (navy, and in some countries, marines). These officers may be serving at a military academy, or, as common in the United States, as members of a military training unit attached to a civilian college or university, such as an ROTC unit. This is due to a requirement that commissioned officers have at least a four-year collegiate undergraduate degree.
The British Army refers to its trainee officers as officer cadets, who rank as private soldiers at the start of their training, with no authority over other ranks (except when appointed to carry out a role as part of training). Officer cadets are addressed to as "Mister" or "Miss" until the completion of the early stages of their training at the Royal Military Academy Sandhurst (at which point cadets "pass out" and formally gain their commissions), thereafter other ranks (non-officers) will address them as "Sir" or "Ma'am".
While cadet has always been a rank of limited authority and prestige (cadets and US Navy midshipmen have no authority over commissioned personnel, warrants, or officers, only subordinate cadets), midshipman has historically been a rank with limited leadership responsibility, particularly in the Royal Navy (where cadets are commissioned at the start of their training, unlike their army counterparts). This tradition was continued by the US Navy after its original adoption of the rank, but now US Navy midshipmen are limited in the same manner as cadets in the other US services. Additionally, US Marine officers in training are also midshipmen, trained and educated alongside their naval counterparts, and wear distinctive insignia to indicate their branch of service.
US Coast Guard Academy students are referred to as "cadets", while those attending the military branch's officer candidate school are "officer candidates".
In the US an alternative to spending four years as a cadet or midshipmen is for college graduates with a four-year degree to attend officer candidate school, an intensive twelve-week training course designed to convert college graduates into military officers. Each service has at least one, and usually several, officer candidate school facilities. Students at these programs are called officer candidates.
Warrant officers
Warrant officers (as receiving authority by virtue of a warrant) are a hybrid rank treated slightly differently in each country or service. Warrant officers may either be effectively senior non-commissioned officers or an entirely separate grade between commissioned and non-commissioned officers, usually held by specialist personnel.
In the United States, Warrant officer (United States), warrant officers are appointed by warrant then commissioned by the President of the United States at the rank of chief warrant officer. Warrant officers range from WO1–CW5. A warrant officer is not a chief warrant officer until they reach W2. CW3–CW4 are field grade officers. Warrant officers in the rank or grade of CW5 are senior field grade officers.
Enlisted personnel
Enlisted personnel are personnel below commissioned rank and make up the vast majority of military personnel. They are known by different names in different countries, such as Other ranks (UK), other ranks (ORs) in the United Kingdom and some Commonwealth countries, and non-commissioned members (NCMs) in Canada.
Non-commissioned officers
Non-commissioned officers (NCOs) are enlisted personnel, under the command of an officer, granted delegated authority to supervise other military members or assigned significant administrative responsibilities. They are responsible for the care and direct control of junior military members, often functioning in the smaller field units as
executive officer
An executive officer is a person who is principally responsible for leading all or part of an organization, although the exact nature of the role varies depending on the organization. In many militaries and police forces, an executive officer, o ...
s.
Even the most senior NCO officially ranks beneath the most junior commissioned officer or warrant officer. However, most senior NCOs have more experience, possibly including combat, than junior officers. In many armies, because junior officers have a great amount of responsibility and authority but little operational experience, they are paired with senior NCO advisers. In some organizations, senior NCOs may have formal responsibility and informal respect beyond that of junior officers, but less than that of warrant officers. Many warrant officers come from the ranks of mid-career NCOs. In some countries warrant ranks replace senior enlisted ranks.
NCO ranks typically include a varying number of grades of
sergeant
Sergeant (abbreviated to Sgt. and capitalized when used as a named person's title) is a rank in many uniformed organizations, principally military and policing forces. The alternative spelling, ''serjeant'', is used in The Rifles and other uni ...
and corporal (air force, army and marines), or chief petty officer and petty officer (navy and coast guard). In many navies the term 'rating' is used to designate specialty, while ''rank'' denotes pay grade.
In some countries warrant officers come under the non-commissioned officer branch (senior non-commissioned officiers).
Other enlisted
Personnel with no command authority usually bear titles such as
private
Private or privates may refer to:
Music
* " In Private", by Dusty Springfield from the 1990 album ''Reputation''
* Private (band), a Denmark-based band
* "Private" (Ryōko Hirosue song), from the 1999 album ''Private'', written and also recorde ...
, airman or aircraftman, or Seaman (rank), seaman (starting with seaman recruit in the United States Navy and Coast Guard). In the United States Marine Corps individuals of all ranks regardless of command status may be referred to as "marine". In the United States Air Force individuals of all ranks regardless of command status may be referred to as "airman". Shortly after the Sailor's Creed was formally instituted, Secretary of the Navy John Dalton directed that the word ''sailor'' should be capitalized when referring to any uniformed member of the Navy. In some countries and services, personnel in different branches have different titles. These may have a variety of grades, such as private first class, but these usually only reflect variations in pay, not increased authority. These may or may not technically be ranks, depending on the country or service. Each rank gives the individual an indication of how long and how well they have served in combat and training.
Appointment
Appointment is the instrument by virtue of which the person exercises their authority. Officers are appointed by a royal Letters patent, commission in most monarchies or a presidential commission in many other countries. In the Commonwealth, warrant officers hold a royal or presidential warrant. In the United States, officers are appointed by the president, with the advice and consent of the United States Senate. Most officers are approved ''en bloc'' by voice vote, but flag officers are usually required to appear before the United States Senate Committee on Armed Services, Armed Services Committee and answer questions to the satisfaction of its members, prior to a vote on their commission.
NCOs are appointed by an instrument of appointment, a written document, often a certificate, usually from the service head. Entry into service is often referred to as enlistment throughout the English-speaking world, even in countries where soldiers do not technically enlist.
Sometimes personnel serve in an appointment which is higher than their actual rank. For instance, Commodore (RN), commodore used to be an appointment of captain (Royal Navy), captain in the Royal Navy and
lance corporal
Lance corporal is a military rank, used by many armed forces worldwide, and also by some police forces and other uniformed organisations. It is below the rank of corporal, and is typically the lowest non-commissioned officer (NCO), usually equi ...
used to be an appointment of private in the British Army.
Types of rank
There are a number of different forms of rank; from highest to lowest degree, they are:
* Substantive or ''permanent'': the fully paid and confirmed rank, with eligibility for the corresponding pension/benefits
**''Retired'' or ''retained'': usually granted to those officers of the rank of ''lieutenant'' in the navy, or ''captain'' in the army, or above, and enlisted, who have reached the end of their service obligation and have not been dishonorably discharged or dismissed from the service. A retired rank is usually kept for life, if the officer concerned so wishes. In the Commonwealth of Nations, such an officer will also hold the style of Esquire, if they do not hold a higher title.
** ''Veterans'' rank is different in each country. Members of the United States military maintain their highest rank after discharge or retirement. 10 U.S. Code § 772(e) states: A person not on active duty who served honorably in time of war in the Army, Navy, Air Force, or Marine Corps may bear the title and wear the uniform of the highest grade held by him during that war. After a war, regular serving members of the military holding war substantive or temporary rank often revert to their former, substantive rank and all others often end their service. However, the holder may be granted permission to permanently ''retain'' the rank they held when the conflict ended.
* Temporary: usually granted for a specific task or mission. The holder holds the rank while occupying that position. Despite the name, temporary rank may be held for a considerable period of time, perhaps even years. In wartime, temporary ranks are often common. In the United Kingdom, the rank of brigadier was long considered a temporary rank; while its holder was addressed as "brigadier," he would retain the substantive rank of colonel or lieutenant-colonel if not selected for promotion to general officer rank. Sub-classes of temporary rank (from highest to lowest) include:
**''War substantive'': a temporarily confirmed rank only held for the duration of that war, though war substantive rank may be treated as substantive when considering the holder's eligibility for subsequent promotions and appointments.
** ''Acting rank, Acting'' is where the holder assumes the pay and allowances appropriate to the acting rank, but a higher commanding officer may revert the holder to previous rank held. This is normally for a short period of time while the permanent occupant of the office is absent. During wartime, acting ranks are frequently held on an emergency basis, while peacetime holders of acting ranks are often those who must hold their permanent rank for a sufficient period before being confirmed in their new higher rank.
** ''Brevet (military), Brevet'': an honorary promoted rank, without the full official authority or pay appropriate to the rank.
** ''Local'' or ''theater'': a form of temporary rank restricted to a specific location instead of a specific duty.
*Titular and honorary rank#Honorary rank, Honorary: Often granted on retirement, or in certain special cases to honour a deserving civilian. Generally, honorary rank is treated as if it were substantive, but usually does not grant a corresponding wage or pension (increase). Certain members of the British royal family that serve in the military have honorary ranks in other services, but retain their original rank. Prince Harry, the Duke of Sussex, is a major in the British Army, but has an honorary rank of Lieutenant Commander in the Royal Navy, and Squadron Leader in the Royal Air Force.
Size of command
Rank and unit size
To get a sense of the practical meaning of these ranks—and thus to be able to compare them across the different armed services, different nations, and the variations of titles and insignia—an understanding of the relative levels and sizes of each command is helpful. The ranking and command system used by United States Marine Corps, U.S. Marine ground forces or United States Army, U.S. Army
infantry
Infantry is a military specialization which engages in ground combat on foot. Infantry generally consists of light infantry, mountain infantry, motorized infantry & mechanized infantry, airborne infantry, air assault infantry, and marine i ...
units can serve as a template for this purpose. Different countries will often use their own systems that do not match the presentation here.
Under this system, starting from the bottom and working up, a corporal leads a fireteam consisting of three other individuals. A sergeant leads a
squad
In military terminology, a squad is among the smallest of military organizations and is led by a non-commissioned officer. NATO and US doctrine define a squad as an organization "larger than a team, but smaller than a section." while US Army do ...
consisting of three fireteams. As a result, a full squad numbers 13 individuals. Squads usually have numbered designations (e.g., 1st Squad).
Generally, in most armies and marine units, a lieutenant or equivalent rank leads a
platoon
A platoon is a military unit typically composed of two or more squads, sections, or patrols. Platoon organization varies depending on the country and the branch, but a platoon can be composed of 50 people, although specific platoons may range ...
, which can consist of three or four squads. For example, in U.S. Marine
infantry
Infantry is a military specialization which engages in ground combat on foot. Infantry generally consists of light infantry, mountain infantry, motorized infantry & mechanized infantry, airborne infantry, air assault infantry, and marine i ...
units, rifle platoons usually consist of three rifle squads of 13 men each, with a Navy corpsman, the platoon leader, and a platoon sergeant (i.e., a staff sergeant who serves as second-in-command). An infantry platoon can number from 42 to 55 individuals, depending on the service. Platoons are usually numbered (e.g., 1st Platoon) or named after their primary function (e.g., service platoon).
A captain or equivalent rank commands a
company
A company, abbreviated as co., is a Legal personality, legal entity representing an association of people, whether Natural person, natural, Legal person, legal or a mixture of both, with a specific objective. Company members share a common p ...
, usually consisting of four platoons (three line platoons and one heavy weapons platoon). His headquarters can include a first sergeant and as many as seven others. As such, a company can comprise from roughly 175 to 225 individuals. Equivalent units also commanded by captains are batteries (for field artillery units) and detachments. In English speaking countries, a company (or troop in the cavalry, and Artillery battery, battery in the artillery) is usually designated by a letter (e.g., "A Company"). In non-English speaking countries, they are usually numbered. In most Commonwealth armies a company is commanded by a major, assisted by a captain.
A lieutenant colonel or equivalent rank commands a
battalion
A battalion is a military unit, typically consisting of 300 to 1,200 soldiers commanded by a lieutenant colonel, and subdivided into a number of companies (usually each commanded by a major or a captain). In some countries, battalions are ...
or a Squadron (army), squadron, often consisting of four companies, plus the various members of his headquarters. A battalion is around 500–1,500 men and usually consists of between two and six companies.
A colonel or equivalent commands a
regiment
A regiment is a military unit. Its role and size varies markedly, depending on the country, service and/or a specialisation.
In Medieval Europe, the term "regiment" denoted any large body of front-line soldiers, recruited or conscripted ...
or Group (air force), group, often consisting of two or more battalions (for an infantry unit) or five to six air groups (for a wing). Battalions and regiments are usually numbered, either as a separate battalion or as part of a regimental structure (e.g., 1-501st Infantry in the US Army).
The next level has been a
brigade
A brigade is a major tactical military formation that typically comprises three to six battalions plus supporting elements. It is roughly equivalent to an enlarged or reinforced regiment. Two or more brigades may constitute a division.
Br ...
, commanded by a brigadier general, and containing two or more regiments or three to eight battalions. In the United States Army, U.S. Army, a brigade is roughly equal to or a little larger than a regiment, consisting of three to seven battalions. Strength typically ranges from 1,500 to 3,500 personnel. In the U.S. Marines, brigades are only formed for certain missions. In size and nature they are larger and more varied collections of battalions than is common for a regiment, fitting them for their traditional role as the smallest formation able to operate independently on a battlefield without external logistical tactical support. Brigades are usually numbered (e.g., 2nd Brigade).
The level above regiment and brigade is the Division (military), division, commanded by a major general and consisting of from 10,000 to 20,000 persons. The 1st Marine Division, for example, is made up of four marine regiments (of the type described above), one assault amphibian battalion, one reconnaissance battalion, two light armored reconnaissance battalions, one combat engineer battalion, one tank battalion, and one headquarters battalion—totalling more than 19,000 marines. (Within the headquarters battalion are one headquarters company, one service company, one military police company, one communications company, and one truck company.) An equivalent elsewhere within the same marine expeditionary force (MEF) might be a MEF logistics group (MLG), which is not a regimental-sized unit (as the word "group" implies), but rather a large support unit consisting of several battalions of support personnel. Divisions are normally numbered, but can be named after a function or personage.
The command sizes for any given rank will vary widely. Not all units are as troop intensive as infantry forces need to be. Tank and
artillery
Artillery is a class of heavy military ranged weapons that launch munitions far beyond the range and power of infantry firearms. Early artillery development focused on the ability to breach defensive walls and fortifications during siege ...
crews, for example, involve far fewer personnel. Numbers also differ for non-combat units such as quartermasters, cooks, and hospital staff. Beyond this, in any real situation, not all units will be at full strength and there will be various attachments and detachments of assorted specialists woven throughout the system.
In the U.S. Army, the level above division is a corps. It is commanded by a lieutenant general. In many armies, a corps numbers around 60,000, usually divided into three divisions. Corps (and similar organizations) are normally designated with Roman numerals and their nationality when operating in a combined (international) force—e.g., V (US) Corps, VIII (ROK) Corps, II MEF, I Canadian Corps.
During World War II, due to the large scale of combat, multiple corps were combined into Field army, field armies commanded in theory by a general (four stars), but often by a lieutenant general (three stars), and comprising as many as 240,000 troops. Armies are numbered by spelled-out numerals or functional titles, using their nationality in "combined" forces (e.g., Eighth United States Army, Third ROK Army, British Army of the Rhine). These were in their turn formed into army groups, these being the largest field organization handled by a single commander in modern warfare. Army groups included between 400,000 and 1,500,000 troops. Army groups received Arabic numeral designations and national designations when combined- eg 21st Army Group.
Military ranks and insignia of various nations
* Algeria military ranks, Algeria
* Military ranks of Argentina, Argentina
* Bangladesh (Ranks of the Bangladesh Army, Army, Ranks and insignia of the Bangladesh Navy, Navy, Ranks and insignia of the Bangladesh Air Force, Air Force)
* Belgian military ranks, Belgium
* Military ranks of Brazil, Brazil
* Canadian Army, Canada
* China (Ranks of the People's Liberation Army Ground Force, Ground Force, Ranks of the People's Liberation Army Navy, Navy, Ranks of the People's Liberation Army Air Force, Air Force)
* Military ranks of the Colombian Armed Forces, Colombia
* Croatian military ranks, Croatia
* Czech military ranks, Czechia
* Ranks and insignia of Royal Danish Army, Denmark
* Military ranks of Estonia, Estonia
* Finnish military ranks, Finland
* France (''Ranks in the French Army, Army'', ''Ranks in the French Navy, Navy'')
* Rank insignia of the German Bundeswehr, Germany
* India (''Army ranks and insignia of India, Army'', ''Naval ranks and insignia of India, Navy'', ''Air Force ranks and insignia of India, Air Force'')
* Indonesian military ranks, Indonesia
* Israel Defense Forces ranks, Israel
* Rank insignia of the Iranian military, Iran
* Military ranks and insignia of the Japan Self-Defense Forces, Japan
* Comparative military ranks of Korea, Korea
* Military ranks and insignia of Norway, Norway
* Army ranks of Pakistan, Pakistan
* Military ranks of the Philippines, Philippines
* Military ranks of Portugal, Portugal
* Army ranks and insignia of the Russian Federation, Russia
* Saudi Arabian military ranks, Saudi Arabia
* Serbian military ranks and insignia, Serbia
* Singapore Armed Forces ranks, Singapore
* Military ranks of the Swedish Armed Forces, Sweden
* Military ranks of the Swiss Armed Forces, Switzerland
* Military ranks of the Thai armed forces, Thailand
* Military ranks of Tunisia, Tunisia
* Military ranks of Turkey, Turkey
* Military ranks of Ukraine, Ukraine
* Military ranks of Egypt, Egypt
* United Kingdom (''Army'' British Army officer rank insignia, officers, British Army Other Ranks rank insignia, enlisted; Navy and Marines Royal Navy officer rank insignia, officers, Royal Navy ratings rank insignia, ratings; ''Air Force'' RAF officer ranks, officers, RAF enlisted ranks, enlisted)
* Republic of China Army rank insignia, Republic of China (Taiwan)
* United States (''Army'' United States Army officer rank insignia, officers, United States Army enlisted rank insignia, enlisted, ''Marine Corps'' United States Marine Corps rank insignia, officers and enlisted, ''Navy'' United States Navy officer rank insignia, officers, List of United States Navy enlisted rates, enlisted, ''Air Force'' United States Air Force officer rank insignia, officers, United States Air Force enlisted rank insignia, enlisted, ''Space Force'' United States Space Force rank insignia, officers and enlisted, ''Coast Guard'' United States Coast Guard officer rank insignia, officers, List of United States Coast Guard enlisted ranks, enlisted)
See also
* List of comparative military ranks
* Ranks of nobility and peerage
* United Kingdom and United States military ranks compared, UK and US military ranks compared
* Shoulder mark
References
Citations
Sources
* ''Oxford Classical Dictionary'', 2nd edition, 1996: "strategoi."
* Warry, John Gibson (1980). ''Warfare in the classical world: an illustrated encyclopedia of weapons, warriors, and warfare in the ancient civilisations of Greece and Rome''. New York, St. Martin's Press.
External links
United States Military Rank Insignia, Background, & DescriptionUS Military Ranks, Ratings, and Grades by Branch (with insignia)British Army ranks and responsibilitiesMilitary ranks
{{DEFAULTSORT:Military Rank
Military ranks, *
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