The
Roman legionary (in
Latin
Latin ( or ) is a classical language belonging to the Italic languages, Italic branch of the Indo-European languages. Latin was originally spoken by the Latins (Italic tribe), Latins in Latium (now known as Lazio), the lower Tiber area aroun ...
''legionarius''; : ''legionarii'') was a
citizen soldier of the
Roman army
The Roman army () served ancient Rome and the Roman people, enduring through the Roman Kingdom (753–509 BC), the Roman Republic (509–27 BC), and the Roman Empire (27 BC–AD 1453), including the Western Roman Empire (collapsed Fall of the W ...
. These soldiers would conquer and defend the territories of
ancient Rome
In modern historiography, ancient Rome is the Roman people, Roman civilisation from the founding of Rome, founding of the Italian city of Rome in the 8th century BC to the Fall of the Western Roman Empire, collapse of the Western Roman Em ...
during the
Republic
A republic, based on the Latin phrase ''res publica'' ('public affair' or 'people's affair'), is a State (polity), state in which Power (social and political), political power rests with the public (people), typically through their Representat ...
and
Principate
The Principate was the form of imperial government of the Roman Empire from the beginning of the reign of Augustus in 27 BC to the end of the Crisis of the Third Century in AD 284, after which it evolved into the Dominate. The principate was ch ...
eras, alongside
auxilia
The (; ) were introduced as non-citizen troops attached to the citizen Roman legion, legions by Augustus after his reorganisation of the Imperial Roman army from 27 BC. By the 2nd century, the contained the same number of infantry as the ...
ry and
cavalry
Historically, cavalry (from the French word ''cavalerie'', itself derived from ''cheval'' meaning "horse") are groups of soldiers or warriors who Horses in warfare, fight mounted on horseback. Until the 20th century, cavalry were the most mob ...
detachments. At its height, Roman Legionnaires were viewed as the foremost fighting force in the Roman world, with commentators such as
Vegetius praising their fighting effectiveness centuries after the classical Roman legionary disappeared.
Roman legionnaires were recruited from
Roman citizens under age 45. They were first predominantly made up of recruits from
Roman Italy, but more were recruited from the provinces as time went on. As legionnaires moved into newly conquered provinces, they helped
Romanize
In linguistics, romanization is the conversion of text from a different writing system to the Roman (Latin) script, or a system for doing so. Methods of romanization include transliteration, for representing written text, and transcription, ...
the native population and helped integrate the disparate regions of the
Roman Empire
The Roman Empire ruled the Mediterranean and much of Europe, Western Asia and North Africa. The Roman people, Romans conquered most of this during the Roman Republic, Republic, and it was ruled by emperors following Octavian's assumption of ...
into one polity. They enlisted in a
legion for 25 years of service, a change from the early practice of enlisting only for a campaign. Legionnaires were expected to fight, but they also built much of the infrastructure of the Roman Empire and served as a policing force in the provinces. They built large
public works
Public works are a broad category of infrastructure projects, financed and procured by a government body for recreational, employment, and health and safety uses in the greater community. They include public buildings ( municipal buildings, ...
projects, such as walls, bridges, and roads. The legionary's last five years of service were on lighter duties. Once retired, a Roman legionary received a parcel of land or its equivalent in money and often became a politically prominent member of society.
History
Inception: Marius's reforms
During the Principate
As
Augustus consolidated power in 27 BC and founded the
Principate
The Principate was the form of imperial government of the Roman Empire from the beginning of the reign of Augustus in 27 BC to the end of the Crisis of the Third Century in AD 284, after which it evolved into the Dominate. The principate was ch ...
, he further professionalized the Roman legionary and sought to break the legionary's dependence on his general. Under him, a legionary's term of service was raised to 25 years (before that, a legionary's average term of service was only 10 years) and pay was standardized throughout the legions. The Roman legionaries were also guaranteed a land grant or a cash payment at the end of his service, making the Roman legionary less dependent on generals for rewards after campaigns. Augustus also changed the ''
sacramentum'' so that soldiers swore allegiance only to the emperor, and not to the general. Thus, Augustus managed to end the civil wars which defined the late Roman Republic and created an army that was broadly loyal to only the emperor.
Legionnaires would expand Rome's borders to include lower
Britannia
The image of Britannia () is the national personification of United Kingdom, Britain as a helmeted female warrior holding a trident and shield. An image first used by the Romans in classical antiquity, the Latin was the name variously appli ...
,
Dacia
Dacia (, ; ) was the land inhabited by the Dacians, its core in Transylvania, stretching to the Danube in the south, the Black Sea in the east, and the Tisza in the west. The Carpathian Mountains were located in the middle of Dacia. It thus ro ...
, North Africa, and more through military campaigns under Augustus and future emperors.
Decline

From the reign of
Septimus Severus onward, the Roman legionary gradually lost his preeminence. Though there were multiple causes for this decline, all pointed to the gradual degradation of loyalty and/or discipline. Septimus Severus, perhaps unwittingly, began this decline when he lavished his legionaries with
donatives and pay increases, recognising that they were his key to becoming and staying emperor. However, this proved detrimental to the discipline of the legionaries, as they began to expect more and more rewards from their emperors. Under
Caracalla
Marcus Aurelius Antoninus (born Lucius Septimius Bassianus, 4 April 188 – 8 April 217), better known by his nickname Caracalla (; ), was Roman emperor from 198 to 217 AD, first serving as nominal co-emperor under his father and then r ...
, Septimus Severus's successor, all freedmen in the Roman Empire became
Roman citizens, effectively erasing the distinction between
auxilia
The (; ) were introduced as non-citizen troops attached to the citizen Roman legion, legions by Augustus after his reorganisation of the Imperial Roman army from 27 BC. By the 2nd century, the contained the same number of infantry as the ...
ries and legionnaires. This, coinciding with the continued expansion of the Roman army, meant recruits of more dubious standards joined the legions, decreasing the quality of the Roman legionary further.
During the
3rd Century Crisis, a more mobile army became necessary, as threats arose across the long borders of the Roman Empire. As such,
mounted cavalry became essential to respond to the varied challenges to the empire. Because of this, Roman heavy infantry faded further from dominance. By the 4th century, Roman infantry lacked much of the
body armor of the classical legionary and used
darts
Darts is a competitive sport in which two or more players bare-handedly throw small projectile point, sharp-pointed projectile, projectiles known as dart (missile), darts at a round shooting target, target known as a #Dartboard, dartboard.
Point ...
rather than the ''
pila'' of their predecessors.
Functions
Though the legionary was first and foremost a soldier, he provided a variety of other critical functions. Lacking a professional
police force,
governors
A governor is an politician, administrative leader and head of a polity or Region#Political regions, political region, in some cases, such as governor-general, governors-general, as the head of a state's official representative. Depending on the ...
would use legionaries to keep the peace and protect critical facilities. As the Roman empire lacked a large
civil administration, the army would often be given many administrative positions. High ranking soldiers often acted as judges in disputes among local populations and the army was an important component of tax collection.
Legionaries also served to spread Roman culture throughout the provinces where they were stationed. As legionaries settled in the provinces, towns sprang up around them, often becoming large cities. In this way, as legionaries co-mingled and intermarried with the local populace, they helped
Romanize
In linguistics, romanization is the conversion of text from a different writing system to the Roman (Latin) script, or a system for doing so. Methods of romanization include transliteration, for representing written text, and transcription, ...
the provinces they protect.
Roman legionaries served as a source of labor and expertise as well. As such, much of the infrastructure which connected the empire was built by legionaries. Roads, canals, and bridges were built by legionaries as well as more defensive structures such as fortresses and walls.
Hadrian's wall
Hadrian's Wall (, also known as the ''Roman Wall'', Picts' Wall, or ''Vallum Aelium'' in Latin) is a former defensive fortification of the Roman province of Roman Britain, Britannia, begun in AD 122 in the reign of the Emperor Hadrian. Ru ...
, a monumental example of
Roman engineering, was built by the three legions stationed in the area. Legionaries were not just limited to building large-scale engineering projects. Surveyors, doctors, artisans, and engineers within the army would be used for a variety of different civil services along with their normal military role.
''Immunes''
Regular trained legionaries were known as ''
milites'' and were the equivalent in rank of the modern
private. Included in the ranks, aside from the ''milites'', were the ''
immunes'', specialist soldiers with secondary roles such as
engineer
Engineers, as practitioners of engineering, are professionals who Invention, invent, design, build, maintain and test machines, complex systems, structures, gadgets and materials. They aim to fulfill functional objectives and requirements while ...
, artilleryman, drill and weapons instructor,
carpenter and
medic. These men were still fully trained legionaries, however, and would fight in the ranks if called upon. They were excused from some of the more arduous tasks such as drill and fatigues and received better pay than their comrades in arms.
Recruitment
Though Roman legionaries were predominantly made up of volunteer citizens,
conscription of recruits continued through
Republic
A republic, based on the Latin phrase ''res publica'' ('public affair' or 'people's affair'), is a State (polity), state in which Power (social and political), political power rests with the public (people), typically through their Representat ...
era and into the
Principate
The Principate was the form of imperial government of the Roman Empire from the beginning of the reign of Augustus in 27 BC to the end of the Crisis of the Third Century in AD 284, after which it evolved into the Dominate. The principate was ch ...
, especially in times of crisis. This meant that levees remained a significant part of the Roman legions.
With the state providing the equipment to the recruits and no property requirements, even the poorest Roman citizens were able to join the legions. However, the army was viewed as an honorable and valued profession. With a steady pay, good retirement benefits, and even certain legal advantages, a legionary had many perks that common citizens found desirable. As such, though poor citizens could join the military, members from across the ''
plebeian'' class were found in the Roman legions. Indeed, the army served as one of the few avenues of upward mobility in the Roman world.
The army actively sought out recruits with useful skills such as smiths, carpenters, and butchers. Though not required, literacy was useful since promotion to higher ranks such as ''
centurion'' required a knowledge of writing. During the Later Republic, Roman legionaries predominantly came from the areas surrounding Rome. However, as Rome expanded, recruits began to come from other areas in Italy. Slowly, recruits came from the regions where the legions were stationed rather than from Italy itself. By the reign of
Trajan
Trajan ( ; born Marcus Ulpius Traianus, 18 September 53) was a Roman emperor from AD 98 to 117, remembered as the second of the Five Good Emperors of the Nerva–Antonine dynasty. He was a philanthropic ruler and a successful soldier ...
, there were 4–5 legionaries originating from the
provinces for every legionary originating from Italy.
Equipment
When on the march in hostile territory, the legionary would carry or wear full
armour
Armour (Commonwealth English) or armor (American English; see American and British English spelling differences#-our, -or, spelling differences) is a covering used to protect an object, individual, or vehicle from physical injury or damage, e ...
, supplies and equipment. This commonly consisted of chain (''
lorica hamata)'', scaled (''
lorica squamata)'', or in the 1st–3rd century sectioned (''
lorica segmentata)'' armour,
shield (''
scutum''),
helmet (''
galea''), two
javelins (one heavy ''
pilum'' and one light ''
verutum''), a
short sword (''
gladius''), a
dagger
A dagger is a fighting knife with a very sharp point and usually one or two sharp edges, typically designed or capable of being used as a cutting or stabbing, thrusting weapon.State v. Martin, 633 S.W.2d 80 (Mo. 1982): This is the dictionary or ...
(''
pugio''), a belt (''balteus''), a pair of heavy
sandals (''
caligae''), a pair of
greaves, a pair of
manicas, a marching pack (''
sarcina''), about fourteen days' worth of food, a
waterskin (bladder for ''
posca''), cooking equipment, two
stakes (''sudes murale'') for the construction of
palisades, a
shovel, and a
wicker basket.
After the military reforms of Emperor Claudius (circa 41 AD), each legion would also be requisitioned a certain number of artillery pieces. Each
cohort (roughly 480 men) would receive one
ballista and each ''
centuria'' (roughly 100 men) would receive one
carroballista. In a standard legionary formation of ten cohorts and sixty centuriae, a legion would be equipped with ten ballistae and sixty carroballistae.
Battle and combat
Maintaining morale
The Roman legionary fought first and foremost with his ''
contubernium'', the basic eight man unit of the Roman army. The men of the same ''contubernium'' fought, slept, ate, and trained together. This strong sense of
camaraderie gave Roman legionaries a sense of pride and kept them fighting on the battlefield. The standard bearers, ''
signiferi'', were of great importance in keeping Roman soldiers in the battle. The loss of a
standard was a disgrace to the ''centuria'' the standard belonged to. As such, standard bearers served as someone to rally around and as someone to exhort legionaries to battle.
''
Optiones'', Roman officers at the rear of a formation, had many essential roles outside of battle. However, during battle, their task was to prevent legionaries from routing. Carrying a staff with a ball-end, an ''optio'' would force legionaries fleeing from battle back into formation. Leading at the front, ''
centurions'' would fight alongside legionaries under their command, serving as a role model for his legionaries to remain in combat.
Finally, there were the
rewards and punishments, which served as both incentives and deterrents for legionaries in battle. For example, the highly coveted ''
corona civica'' was given to legionaries who saved a comrade in battle. However, death was the punishment for a variety of different offenses. Those who committed cowardice and
dereliction of duty
Dereliction of duty is a specific offense under United States Code Title 10, Section 892, Article 92 and applies to all branches of the US military. A service member who is derelict has willfully refused to perform their duties (or follow a given ...
were
stoned to death by their comrades. On very rare occasions when a whole unit displayed cowardice, the unit might be
decimated, in which one out of every ten soldiers were executed. Less extreme punishments included demotions, changing the wheat rations to barley, and the removal of some identifying military gear.
Prelude to battle
Large armies would generally not begin battle immediately upon meeting. Rather, days or even weeks of redeployment and negotiation would take place before battle. Several days of maneuvering occurred before the
Battle of Pharsalus began. Before battle, measures were taken to ensure legionaries were as effective as possible. These included giving legionaries their meals and resting them before the battle.
Their commanders and general would also give speeches during this time. These speeches would heavily emphasize the amount of plunder and riches that winning the battle would give the legionaries, as this was a primary incentive for the legionaries to do battle. Light skirmishing would then take place, with cavalry and
auxilia
The (; ) were introduced as non-citizen troops attached to the citizen Roman legion, legions by Augustus after his reorganisation of the Imperial Roman army from 27 BC. By the 2nd century, the contained the same number of infantry as the ...
ries probing enemy lines before a pitched battle commenced.
Fighting style

The Roman legionary's three principal weapons were the ''
pilum'' (javelin), ''
scutum'' (shield), and ''
gladius'' (short sword). Ideally, the legionaries would throw their ''pila'' first as they approached the enemy army. These pila could often penetrate enemy
shields and hit the soldiers behind them.
Even if the pila failed to pierce the shields, the neck of the javelin would bend, making the shield useless. This then made the enemy vulnerable to missile fire and legionary attack. The disruption and damage wrought by pila would then be followed by the
charge of Roman legionaries.
Though Roman ''scutum'' had various different designs, they all shared a large metal boss in the center of the shield. This allowed the legionary to not only use the ''scutum'' as defensive equipment but also as an offensive weapon. Legionaries would have used this iron boss to punch and shove the enemy combatants. Accompanying this was the ''gladius'', a primarily stabbing weapon though it could also be used to cut. These fairly simple tools combined with impressive discipline made the Roman legionary an extremely effective soldier in the ancient world.
Though there were many different formations that legionaries fought in, they tended toward close, ordered formations with gaps between formations. These gaps would allow for reserve units to enter battle or serve as avenues for
skirmishing forces to retreat back behind the legionaries. During lulls in the battle, wounded soldiers could further be taken back behind battle lines through these gaps.
Pay and conditions
During the
Pax Romana, a rank-and-file Roman legionary would be paid 225
denarii per year. This was increased to 300 denarii during the reign of
Domitian. However, during the third century crisis, inflation and chaos disrupted a legionary's pay, with emperors often letting legionaries seize goods from civilians. Their income was supplemented by
donatives from emperors either to secure a legion's loyalty or to award them after a successful campaign.
Plunder and loot also supplement a legionary's income and is used as a large incentive for soldiers to follow their emperor in campaigns. At the end of their years of service, Roman legionaries received a small allotment of land or a monetary equivalent.
As the Roman empire solidified, permanent
legionary fortresses were constructed and many grew into towns. These fortresses contained
bathhouses, taverns, and even
amphitheaters where festivals and animal displays were held. However, legionaries were not allowed to legally marry until the reign of
Septimius Severus
Lucius Septimius Severus (; ; 11 April 145 – 4 February 211) was Roman emperor from 193 to 211. He was born in Leptis Magna (present-day Al-Khums, Libya) in the Roman province of Africa. As a young man he advanced through cursus honorum, the ...
(though their spouses were often recognized), most likely because of the implicit necessity to care for the widow in the event of a legionary's death.
Training and discipline
When first enlisted, a fresh Roman recruit (''tiro'') was not given real weapons to train with. Instead, he was given wooden swords and shields designed to be twice the weight of their counterparts in battle. This allowed the recruit to develop strength as he trained with these wooden weapons. Alongside battle training, the recruit was also taught other necessary skills such as swimming and setting up camp.
Most of all, however, the recruit was taught discipline, and was drilled twice a day during his training period. After this period, which could last up to six months, the recruit would become a ''milite'' and sent to his respective legion.
The Roman soldier underwent especially rigorous training throughout his military career;
discipline
Discipline is the self-control that is gained by requiring that rules or orders be obeyed, and the ability to keep working at something that is difficult. Disciplinarians believe that such self-control is of the utmost importance and enforce a ...
was the base of the army's success, and the soldiers were relentlessly and constantly trained with weapons and especially with
drill—forced marches with full load and in tight formation were frequent. As discipline was important, infractions were heavily punished by the
centurions. Punishments could range from being obliged to spend the night outside the protective security of a fortified camp, through being beaten with clubs (''
fustuarium''—a common punishment for 'slowpokes' during long marches), to the stoning of individuals or unit executions involving
decimation. However, honors, rewards, and promotions were frequently awarded to legionaries who distinguished themselves in
battle
A battle is an occurrence of combat in warfare between opposing military units of any number or size. A war usually consists of multiple battles. In general, a battle is a military engagement that is well defined in duration, area, and force co ...
or through exemplary service.
One of the goals for strong disciplinary training was to expel fear from a Roman soldier. Fear, and the panic that often follows, is a devastating force to an army on the battlefield. The Romans aimed to remove fear through strict physical and mental training. However, a different fear was used to motivate a soldier in spite of the fear of battle; that was the fear of harsh punishment by their commanding officers. In the words of
Josephus "they are moreover hardened for war by fear; for their laws inflict capital punishments, not only for soldiers running away from the ranks, but for slothfulness and inactivity".
Diet
A Roman legionary had two or three meals per day: The ''prandium'' (breakfast) and the ''
cena'' (dinner). For these meals, the soldiers were issued regular rations consisting mainly of wheat, which composed roughly 60–70% of a soldier's total rations.
This would be consumed in the form of either bread or porridge. However, while on campaign, the soldiers would cook their wheat rations into
hardtack, a long-lasting biscuit.
Supplementing the soldier's wheat rations was the ''cibaria'', rations other than grain. This included a variety of foodstuffs but mainly
wine, vinegar, vegetables (largely beans or lentils), salt,
salt-pork, cheese, and
olive oil
Olive oil is a vegetable oil obtained by pressing whole olives (the fruit of ''Olea europaea'', a traditional Tree fruit, tree crop of the Mediterranean Basin) and extracting the oil.
It is commonly used in cooking for frying foods, as a cond ...
. However, this did not include fruit. Through foraging, trade with merchants, requisitioning, or raiding during campaigns, the Roman legionary could obtain other foodstuffs not included in his rations. In combination, the average soldier's diet was generally nutritious and filling.
Healthcare
Permanent Roman forts would contain hospitals, where doctors (''
medici'') operated on wounded, injured, or sick legionaries.
These medical personnel also isolated sick soldiers, thereby reducing the chance of a possibly infectious disease spreading through the army. Roman forts and camps were also planned in such a way as to minimize the spread of
water-borne illnesses, which ravaged many ancient armies. Engineers took special care in piping fresh water to the camps and carrying sewage downstream of any watering places.
Those legionaries who were seriously and permanently wounded or injured would be granted ''missio causaria'', or a
medical discharge. This discharge would come with many benefits including exemption from some taxes and some civic duties.
Other legionaries
''Legionary'' is also a term used for members of various military forces which have been accorded the title of "legion", although bearing no resemblance to the heavy infantry of ancient Rome. In the 18th and early 19th century this designation was sometimes accorded to units which comprised both mounted and foot components. More recently the title has been used by the French
Foreign Legion, the
Spanish Foreign Legion and the
Polish Legions. Members of these modern legions are often called
''légionnaires'', the French term for legionary.
The term was also used by the
Romania
Romania is a country located at the crossroads of Central Europe, Central, Eastern Europe, Eastern and Southeast Europe. It borders Ukraine to the north and east, Hungary to the west, Serbia to the southwest, Bulgaria to the south, Moldova to ...
n
far right paramilitary
A paramilitary is a military that is not a part of a country's official or legitimate armed forces. The Oxford English Dictionary traces the use of the term "paramilitary" as far back as 1934.
Overview
Though a paramilitary is, by definiti ...
group known in English as the
Iron Guard.
See also
*
Castra
''Castra'' () is a Latin language, Latin term used during the Roman Republic and Roman Empire for a military 'camp', and ''castrum'' () for a 'Fortification, fort'. Either could refer to a building or plot of land, used as a fortified milita ...
*
Comitatenses
*
Limitanei
*
List of Roman army unit types
*
List of Roman legions
*
Military history of ancient Rome
*
Legionnaire (disambiguation)
References
Sources
*
**
**
*
*
*
*Palao Vicente, J.J. "La muerte del soldado romano en la epigrafía del occidente del imperio (siglos I-III d.C.)". En: Perea Yébenes (ed.), El soldado romano y la muerte. Madrid : UNED, 2022. pp. 79–134. ISBN 9788436278514
*
*
*
* {{Cite journal , last=Taylor , first=Michael J , date=2019 , title=Tactical reform in the late Roman republic: the view from Italy , url=https://biblioscout.net/article/10.25162/historia-2019-0004 , journal=Historia: Zeitschrift für Alte Geschichte , volume=68 , issue=1 , pages=76–94 , doi=10.25162/historia-2019-0004 , s2cid=165437350 , issn=0018-2311, url-access=subscription
General books
* Sumner, G. and Raffaele D'Amato. ''Arms and Armour of the Imperial Roman Soldier''. Frontline Books, 2009.
* Watson, G.R. ''The Roman Soldier''. Cornell University Press, 1993.
Other books
* Matyszak, Philip. ''Legionary: the Roman soldier's (unofficial) manual''. Thames & Hudson, 2009.
* Cowan, Ross, and Angus McBride. ''Roman Legionary: 58 BC – AD 69''. Osprey Publishing, 2003.
External links
The Roman Recruitlooks at the life, duties and equipment of a Roman legionary (c. 200AD)
Mercenary units and formations of antiquity
Military ranks of ancient Rome
Military units and formations of the Byzantine Empire
Military units and formations of the Hellenistic world
Types of cavalry unit in the army of ancient Rome