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Structural history

This article is part of the series on: Military of ancient Rome (portal) 753 BC – AD 476
Roman army (unit types and ranks, legions, auxiliaries, generals)
Roman navy (fleets, admirals)
Campaign history
Lists of wars and battles
Decorations and punishments
Technological history
Military engineering (castra, siege engines, arches, roads)
Personal equipment
Political history
Strategy and tactics
Infantry tactics
Frontiers and fortifications (limes, Hadrian's Wall)
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The Roman Army was employed by the the Roman Republic and later the Roman Empire, as part of the Roman military. Its most important infantry constituent for much of its history was the Roman legion, whose soldiers were called legionaries. The Roman Army has been admired throughout history for its discipline and organisation.

The Roman Empire was feared by other surrounding countries because of the brute force the army showed.The Roman army conquered the regions around the Mediterranean and large parts of Northern Europe and the Middle East. The Roman army remained as the East Roman army after the decline of the Western Roman Empire and was succeeded by the Byzantine army, which served under the Byzantine Empire (Eastern Roman Empire).

Structure

Among Roman soldiers, the smallest organization unit was called a "contubernium". This was a group of 8 soldiers (however, it was originally made up of 10), who shared a tent and ate together. There were 10 contubernia in a "centuria" -- the next largest group of soldiers -- which originally consisted of 100 men in the Early Roman Republic, but during the Roman Empire was reduced to 80 men. These centuries were commanded by a "centurion" who led the century during battle. The next largest group of soldiers were called "maniples". Next were the "cohorts". These were made up of 6 centuries (480 men). A "prima cohors" was the first cohort in a legion; it was much larger than the other cohorts, containing about 5 double strength centuries (800-men). Finally, the largest group in the Roman Army was the legion. There were ten cohorts including the "prima cohors" in a legion. A full-strength legion contained 10,000 men, though it was not uncommon for most legions to be undermanned due to previous battles. All these numbers depended on the date (ex. Scipio Africanus reformation, Gaius Marius reformation). The republican army's strength -- in peace -- was four legions, but the number was increased during wartime. The highest number of legions was 70 after the civil war between Octavian (Augustus) and Mark Antony, due to having two whole Roman empires fighting when the remainder of Antony's forces joined with Octavian's. The number was decreased to 28 legions soon after, as the economically strained empire could not pay such huge numbers and after the Varus disaster, only 25 legions remained.

Weapons and equipment

Main article: Roman military personal equipment

Roman army helmet

In an early- to mid-Republican era, legionaries usually bought their own gear. Hastati, the first line, usually had breastplates and occasionally wore lorica hamata, or chainmail. The wealthier principes could afford lorica hamata but they were sometimes seen wearing the cheaper cuiriasses. Both hastati and principes were each armed with a gladius - a short, 60 centimeter (2 foot) sword - and each had two hasta (thrusting spear). The Triarii's primary weapon was the hasta, a 2-meter-long spear. They were also armed with the gladius and had an early form of the lorica segmenta. All legionaries had a large rectangular shield (scutum) which had rounded corners. By the late Republican period, all legionaries carried a gladius, two pila, a new, larger version of the scutum, and wore chainmail. Lorica segmenta, or the iron band armor, was in sporadic use in the early 1st century ^[1] but commonly worn in the next two centuries.

A set of Roman armor would include one of a variety of body armor types (usually designed to be flexible but strong; a centurion's body armor differs from that of the legionary), leggings or greaves, an apron (for decoration and protecting the groin), marching sandals called Caligae (with studs on the sole), a coarse woolen tunic, a belt (showing a soldier's position/rank in the army), and lastly a helmet called Galea (with cheek, ear and neck protection). A helmet might have also held a crest if the Roman was an officer or of higher rank than a miles.

Personal armour

The lorica hamata is a type of chainmail crephole armour used during the Roman Republic and Roman Empire as a standard-issue armor for both the legionaries (higher quality version of the lorica hamata) and secondary troops (Auxilia).
The lorica segmentata was a type of armor introduced in the early 1st century AD. The armor itself consisted of broad ferrous (iron) strips ('girth hoops') fastened to internal leather straps.
The lorica squamata was a type of scale armor used during the Republic and at later periods.
The Scutum, (Latin for shield), was the standard, rectangular, semi-cylindrical shield carried by Roman legionaries during the Principate. Republican-era scuta had the form of an oval, and in the late fourth century the Roman Army began to exchange their rectangular scuta for oval or large circular shields.
The cingulum was a military belt worn at all times, even without the rest of the armor.My dick is huge! said the roman empire to the Australians

Personal weapons

Modern replica of a Roman pugio.

The pugio was a small dagger.
The gladius was the short sword, 18 to 24 inches long, used by Roman legionaries from the 3rd century BC until the late Roman Empire. It was primarily used for stabbing and thrusting. The gladius was made by Hispans.
The hasta was a spear used by triarii in the times of the Republic, and also as the primary weapon of the hastati and principes in the early Republic.
The pilum, was a specialized javelin that would bend after being thrown to prevent enemies from re-using it.

Additionally, in the army of the late empire, the gladius was often replaced by a spatha (longsword), up to 1 meter long, the rectangular scutum was dropped in favor of an oval shield, the earlier pilum had evolved into a differently shaped javelin - lighter and with a greater range - and new weapon types such as thrown darts (plumbatae) were introduced. (Santosuosso, A., Soldiers, Emperors and Civilians in the Roman Empire, Westview, 2001, p. 190)

Artillery weapons

The scorpio, or "dart thrower," was a large crossbow used by one man.
The ballista, was larger than the scorpio, and also derived from the crossbow.
The onager, was a siege engine used for hurling boulders against fortifications. Its name means "Wild Ass", because of the way it kicked during recoil.
The catapulta was a very effective machine that hurled javelins.

Ranks

Further information: Roman legion officers

Senior officers

Legatus/legate: The overall Legionary commander. He was generally appointed by the emperor, was a former Tribune and held command for 3 or 4 years, although he could serve for a much longer period if he wanted to. In single-legion provinces, the Legatus served as the provincial governor; in provinces basing multiple legions, a legatus commanded each, with the provincial governor holding overall command as the Dux.

The Quaestor: Served as a type of quartermaster general, in charge of purchasing, finance, the collection and distribution of booty, etc. Again, these might perform similar functions on the civilian side.
The Legati: senior commanders under the supremo. Generally they were of senatorial rank and were commissioned by the Senate.
Tribunus Laticlavius: Named for the broad striped toga worn by men of senatorial rank. This tribune was appointed by the Emperor or the Senate. Though generally quite young and less experienced than the Tribuni Angusticlavii, he served as second in command of the legion, behind the Legate.
Praefectus Castrorum: The camp Prefect. Generally he was a long-serving veteran who had been promoted through the ranks of the centurions and was third in overall command.
Tribuni Angusticlavii: Each legion had 5 military tribunes of equestrian (knight) class citizens. They were in many cases career officers and served many of the important administrative tasks of the Legion, but still served in a full tactical command function during engagements.

Mid-level ranks

Roman centurion.

Primus Pilus: The senior centurion of the legion and commander of the first cohort was called the primus pilus ("first file", commonly mistaken with primus pilum, and mistranslated as "first spear"), a career soldier and advisor to the legate. While every normal cohort was composed of 5 to 8 centuries, the one that was led by the primus pilus (the first) had about 10 centuries, or 800 men.
Pilus Prior: Senior centurion in any cohort other than the first cohort. Commanded that cohort and served as an advisor to the legion's commander.
Centurions: They were career officers who formed "the backbone of the professional army." They were responsible for the day to day life of the soldiers and were the field commanders. While generally promoted from the ranks, in some cases they could be appointed by the Emperor or other senior officials. There were 59 centurions in each legion (5 in the first cohort and 6 in the rest), one to command each centuria of the 10 cohorts. The ranking of centurions were: Pilus Prior, Pilus Posterior, Princepes Prior, Princepes Posterior, Hastatus Prior, and Hastatus Posterior.^[2] The Pilus Prior (first century) centurion of each cohort commanded the entire cohort in battle.
Aquilifer: A single position within the Legion. The aquilifer was the Legion's Standard or Eagle bearer and was an enormously important and prestigious position. The next step up would be a post as a centurion.
Optio: One for each centurion (therefore, there were 59 in a legion), they were appointed by the centurion from within the ranks to act as his second in command.
Tesserarius (Guard Commander): Again there were 59 of these, or one for each centuria. They acted in similar roles to the optiones.
Signifer: Each centuria had a signifer (therefore, there were 59 in a legion). He was responsible for the men's pay and savings, and the standard bearer for the Centurial Signum, a spear shaft decorated with medallions and often topped with an open hand to signify the oath of loyalty taken by the soldiers. It was this banner that the men from each individual centuria would rally around. A soldier could also gain the position of Discentes signiferorum, or standard bearer in training.
Cornicen (Horn blower): They worked hand in hand with the signifer drawing the attention of the men to the Centurial Signum and issuing the audible commands of the officers.
Imaginifer: Carried the standard bearing the image of the Emperor as a constant reminder of the troops' loyalty to him.
Evocati: A veteran of the Roman army who has the right to retire, but has chosen to stay on after his tenure has finished. During this period they receive double pay and are excluded from regular duties such as manual labour.

Rank and file

Legionarii: All the soldiers in a Legion were called Legionaries.
Immunes: These were trained specialists, such as surgeons, engineers, surveyors, and architects, as well as craftsmen. They were exempt from camp and hard labor duties due to the nature of their work, and received higher pay than the Milities.
Discentes: Milities in training for an immunis position.
Milities Gregarii: The basic private-level foot soldiers.
Tirones: The new recruits in training. A tiro could take up to 6 months before becoming a full miles.

Training

Enlistment

Vegetius ^[3] argues that enlistment occurs whenever puberty began, but a study of Roman military tombstones by Schiedel^[4], has revealed that of a sample of 531 epitaphs, 265 show the age of enlistment to occur at between ages 17–20, with an increase to 430 (around 80%) if ages 17–24 are included. One example exists of enlistment at age 13, and 5 of ages 33–36

Fitness

The proper need for a member of the Roman Army was fitness. The first thing the soldiers were taught to do was to march. During the summer the soldiers had to march 18.4 miles (29.6 km) in five hours. Another thing they did in basic military training was physical exercise such as long distance running, high and long jumping, climbing over walls and carrying heavy packs with full armour on. During the summer, swimming was also a part of training. If their camp was near the sea, a lake or a river, every recruit was made to swim. Some of them would sometimes have to swim in their armor so they could continue fighting on the other side of the river. They also had to be fit to be able to fight well and cope with any injuries. Stamina was crucial. Soldiers would be expected to be able to last a long time without food in case of a break in supplies.

Group training

Every day the whole of the legion would practice running, jumping, fencing and javelin throwing. But, before that happened, newcomers would do two sessions of military drill and give their oath of loyalty to their commander and Emperor.

Drill and weapons training

Both the legionary and auxilia troops also conducted drill training, from fundamentals such as learning military step and the exact formation of ranks, to practicing tactical maneuvers. Roman tactics also required the soldier to be able to respond instantly to commands to change the shape of his formation, and not simply to fight as a brave individual, as in barbarian armies. This also required extensive training and discipline. Weapons training covered how to handle a sword, both to become accustomed to the weight and balance, and also how to deliver blows to an enemy without exposing the soldier's own body to enemy strikes. In contrast to other contemporary styles, Roman sword-fighting was fairly restrained and measured - primarily, the sword was to be used to make short stabbing strokes from behind the protection of the scutum (shield) with minimal risk of the soldier receiving counter-strokes. This is in contrast to the rather looser style of slashing blows favored by many barbarian peoples. A favored tactic was to knock one's opponents off their feet with a ram of the scutum (shield), and then to dispatch him with one or more swift downward stabs while he was vulnerable on the ground, all the while remaining protected by the scutum, which was to remain raised. They also trained in the use of the thrown javelin and pilum. The more highly ranked men treated their subordinates harshly; training was brutal, and discipline played a major role in the legions' success. Training for new recruits incorporated the use of wooden swords- heavier than the usual gladius- and fighting against a wooden post to train standard slashes and jabs. Then they would move on to one-on-one scenarios, using a scutum made of wicker, also heavier than the usual scutum. As a result, once a soldier used the normal gladius and scutum, he would be highly adept at handling it.

History of the Roman army

Main articles: Campaign history of the Roman military, Structural history of the Roman military, Technological history of the Roman military, Political history of the Roman military, Roman legion, List of Roman legions, and Byzantine army

From a few score men defending a small hill town in Italy, through a citizen militia consisting of citizen-farmers raised annually for a short campaign before returning to harvest their fields, the Roman army grew to be a professional standing army of several hundred thousand men. Roman historian Edward Gibbon estimates in his book The Decline and Fall of the Roman Empire that the peak size of the Roman army in the late imperial period was on the order of 375,000 men.

Branches

Further information: Roman military structure

Notes

^ LORICA SEGMENTATA
^ Heaton, Chris. The Organization of the Roman Imperial Legion. UNRV.com.
^ Vegetius, Epitome of Military Science 1.5
^ Scheidel, W., 1996, "Measuring Sex, Age and Death in the Roman Empire" Journal of Roman Archaeology Supplementary series no. 21, Chapter 3

References

Secondary sources

Davies, Roy W. "Service in the Roman Army", Columbia University Press, New York, 1989
Goldsworth, Adrian. "Roman Warfare", "Cassell & Co", London, UK 1999
Additional Educational Information:
- http://www.bbc.co.uk/schools/romans/army.shtml
- http://www.roman-empire.net/army/army.html

Roman army

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