Marian Reforms
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Marian Reforms
Gaius Marius

The Marian reforms were reforms of the ancient Roman army implemented in 107 BC by the statesman Gaius Marius, for whom they were later named. The reforms originated as a reaction to the military and logistical stagnation of the Roman Republic in the late 2nd century BC. Centuries of military campaigning throughout the Mediterranean and increasing invasions and uprisings across Roman territory had stretched the human and physical resources of the Roman army. The 'maniple' militia (temporary service) used since the Samnite Wars (343-290BC) emerged as inadequate for the demands of the expanding Roman territory.

Marius proposed radical alterations with the intention of creating a more professional, permanent and dynamic Roman army. The reforms revolutionized the Roman military machine, introducing the standardized legionary, the cohort unit and drastically altered the property and weaponry requirements for recruitment. As a consequence these reforms had a significant impact on the military supremacy of Rome, as well as unintentionally contributing to the social and political disruption of the Late Republic.

These changes remained principally intact until the downfall of the Roman Empire, but there were structural and administrative adjustments, notably by Augustus and later by Diocletian.

Background

The pre-Marius Roman army was organised as a militia, with the incumbent consuls charged with the duty of recruiting an army from the eligible citizenry of the Republic. The soldiers would serve the duration of the campaign/war, and then be released back into the populace. To be eligible to serve in this Roman army the citizens had to satisfy stringent property and census requirements, as well as providing their own weaponry, supplies and armour.

Until the last decade of the 2nd century BC, the eligibility requirements to become a Roman soldier in the service of the Republic were very strict:

  • He had to be a member of the fifth census class or higher (the adsidui, or "tax-payers").
  • He had to own property worth 3500 sesterces in value.
  • He had to supply his own armaments.

The use of census, property and armament requirements produced a division among Roman census classes (distinct from the usual plebeian/patrician divide) in which four standardized unit types (reflecting how much money the soldier could spend on his own arms and armor) composed each legion (the velitas, hastati, principes and triarii). These units operated in the maniple system which had developed in the 320s BC as a replacement to the traditional 'Italic' phalanx. In this formation the units were split into distinctive lines based on age, experience and wealth:

  • Velites - The poorest (5th class proletarii) and often the youngest citizens, who could not afford a shield, a helmet or armor, and sometimes even a gladius. They were unarmored javelin-throwing skirmishers, who ran forward at the head of the Roman line of battle, expended their missiles to distract the enemy while the hastati advanced and then quickly retreated through the lines to the rear. They were not expected or equipped to hold any portion of the battle line.
  • Hastati - 4th class citizens who could afford basic armor, a small shield and a gladius. The first rank of heavy (technically medium) infantry in the pre-Marian legion, the hastati were expected to hold the front of the line in the center of the battle and were usually young and aggressive men of middle to lower-middle class. Their lighter armour and position in the front ranks inevitably caused them to suffer the highest casualties in any battle, but good performance (and survival) meant promotion to the principes and upward social mobility in peace.
  • Principes - 3rd class citizens, who could afford a full set of high-quality armor, a large shield and a bronze helmet in addition to their sword. Considered the core of the pre-Marian legion, the principes were the pre-Marian unit that most closely resembled the standardized legionary that the Marian reforms would eventually produce. They stood directly behind the hastati and relieved them in the front line if they were unable to break the enemy formation by themselves, which was common. Allowing the enemy to wear themselves out on the lighter hastati before facing the principes usually proved to be a decisively successful strategy.
  • Triarii - The final infantry unit, the triarii, was restricted to experienced veterans of the principes and anchored the entire Roman battle line. Fighting in the manner of hoplites at the rear of the formation, the triarii were considered the elite infantry of the pre-Marian legion and were not usually needed, instead used as a last resort if the hastati and principes could not break the enemy line and were forced to retreat. The Roman idiom ad triarios redisse ("to fall back on the triarii") was used to refer to a final, mighty attempt to salvage a desperate situation.
  • Equites - rich citizens of the equestrian order who could afford a horse, the equites were light cavalry who carried a one-handed light spear. They usually advanced along the flanks of the infantry line and were intended to break up enemy skirmisher and missile units and pursue forces that had been routed by the infantry. They were also the legion's primary reconnaissance force.[1]

Once the consuls had raised this mainly volunteer army, as a rule, one of the consuls would lead the army into battle. As it can be imagined, not all elected consuls were adept at leading an army. For example, in 113 BC, the consul Gnaeus Papirius Carbo was defeated at the Battle of Noreia by invading tribes of the Cimbri and the Teutons. That was followed by a protracted war in Africa against King Jugurtha of Numidia. Consul Quintus Caecilius Metellus Numidicus was sent to defeat Jugurtha. Metellus never lost any armies and won some battles but after two years, he had not achieved total victory. Gaius Marius, one of his legates, requested Metellus to release him from his duties so he could return to Rome and run for consul at the end of 108 BC.

When Marius became junior consul in 107 BC and was appointed the task of concluding the war with Jugurtha, he had no army. The army Metellus had commanded in Africa was assigned to the senior consul, Lucius Cassius Longinus, to expel the Cimbri, who were once again encroaching on the Roman province of Transalpine Gaul (Gallia Transalpina). Marius had no troops with which to conduct the war in Africa, as the eligible citizenry from whom he could recruit an army was severely depleted by previous military disasters and the expansion of the latifundia at the expense of small landowners. It was becoming clear that a consequence of having a temporary army based principally on volunteers with inflexible eligibility requirements was a limited availability of recruits and short-term military shortages. To overcome that problem, he introduced a number of reforms.

Marian reforms

The foremost of the Marian reforms was the inclusion of the Roman landless masses, the capite censi, men who had no property to be assessed in the census. Instead, they were "counted by the head". The men were now among the ranks of those who could be recruited even though they owned no significant property. Because the poor citizens could not afford to purchase their own weapons and armor, Marius arranged for the state to supply them with arms. He thus offered the disenfranchised masses permanent employment for pay as professional soldiers and the opportunity to gain spoils on campaign. With little hope of gaining status in other ways, the masses flocked to join Marius in his new army. In addition, the professional soldiers were recruited for an enlistment term of 16 years, later to rise to 20 years' full service and 5 years as evocati under the reforms of Augustus. Relaxing the property requirements and providing high quality equipment (rather than relying on an individual's pre-established wealth) massively increased the availability of recruits, and hence the size of the Roman army.

The second important reform implemented by Marius was the formation of a standing army. Marius was critical of the voluntary organisation of the army which disbanded after temporary service. Alternatively he introduced career soldiers, with a contracted employment and standardized training and equipment. Drilling and training took place all year round, even in times of peace, not just when war threatened. With the now standardized equipment, the uniformed and heavily trained legionary became the backbone of the Roman army.

Marius re-organized the Roman legion from a system of maniples into cohorts, as follows. The total number of men in a full strength legion was about 4,800 soldiers. The internal organization of a legion consisted of 10 cohorts of 6 centuries each. The century consisted of 80 men and was led by a centurion. Each century was divided again into 10 contubernia led by a decanus. The contubernium contained 8 legionaries. The century fought as a unit, marched as a unit and camped as a unit. The century carried with it all the arms and accoutrements required to feed and maintain it as a fighting unit. Each man was responsible for carrying his own supplies, weapons and several days' worth of rations (nicknamed 'Marius mules'). This logistical change drastically reduced the size of the baggage train required as support and made the army much more mobile. Between 2 and 6 legions grouped together constituted an army. The legions were kept in peak physical condition and discipline by constant training, one of the best in the ancient world. In battle, the cohorts were fielded in a more compact line than the previous maniple line to help improve morale and discipline.

The third reform that Marius was able to introduce was legislation that offered retirement benefits in the form of land grants. Members of the head count who had completed their term of service would be given a pension by their general and a plot of land in the conquered region on which to retire. Officers and commanders were given monetary rewards that were 10 to 25 times greater than that of a common foot soldier.

Finally, Marius granted citizens of the Italian allies (Etruria, Picenum, etc.) full Roman citizenship if they fought for Rome and completed a period of service in the Roman army.

Impact of Marian reforms

Detail from the Ahenobarbus relief showing (centre-right) two Roman foot-soldiers ca. 122 BC. Note the Montefortino-style helmets with horsehair plume, chain mail cuirasses with shoulder reinforcement, oval shields with calfskin covers, gladius and pilum
A Roman naval bireme depicted in a relief from the Temple of Fortuna Primigenia in Praeneste (Palastrina),[2] which was built c. 120 BC;[3] exhibited in the Pius-Clementine Museum (Museo Pio-Clementino) in the Vatican Museums.

The first and most obvious result was the improvement in the military capability of the army. A general, when war threatened the Republic, no longer hastily had to recruit a citizen army, train it to fight and obey military commands and discipline and then march it off to do battle, raw and un-blooded. That was instrumental in the growth and success of the Roman military and resulted in the continued success of the Romans on the battlefield. Additionally, the creation of a professional standing army was more suited to managing the growing empire, increasing the speed at which Rome could field armies.

Another benefit of the reforms was the settlement of retired legionaries in conquered land. That helped to integrate the region into a Roman province and "Romanize" its citizens, reducing unrest and revolt against Roman rule.

However, loyalty of the legions shifted away from the Roman state and towards the generals who led the army, as soldiers now had a direct financial incentive to support their generals' ambitions. It became alarmingly common for a general to prolong his imperium by using the army to influence the senate and consolidate his power. Some even went as far as to declare war on their political enemies leading to civil war.

This led ultimately to the destruction of the Republic and its transformation into the Roman Empire, under the rule of an emperor.

Subsequent modifications

The cohort legions of the late republic and early empire are often called Marian legions. Following the Battle of Vercellae in 101 BC Marius granted all Italian soldiers Roman citizenship. He justified this action to the Senate by saying in the din of battle he could not distinguish Roman from ally. This effectively eliminated the notion of allied legions; henceforth all Italian legions would be regarded as Roman Legions. Thus the three different types of heavy infantry (the Hastati, the Principes and the Triarii, which composed the pre-Marian Roman armies) were replaced by a single, standard type of legionary based on the Principes.

The role of allied legions would eventually be taken up by contingents of allied/auxiliary troops, called Auxilia. Each legion had a same size or near same size Auxilia (auxiliary), which contained specialist units, engineers and pioneers, artillerymen and siege craftsmen, service and support units plus units made up of non-citizens (who were granted Roman citizenship upon discharge) and undesirables. These were usually formed into complete units such as light cavalry, light infantry or velites, and laborers. There was also a reconnaissance squad of 10 or more light, mounted infantry called speculatores who could also serve as messengers or even as an early form of military intelligence service.

During these reforms, the legions were also organized into permanent cohorts for the first time. Prior to this cohorts had been temporary administrative units or tactical task forces of several maniples, even more transitory than that of the legions of the early republic themselves. Now the cohorts were six to ten permanent units, composed of five to eight centuries each led by a centurion assisted by an Optio, a soldier who could read and write. These came to form the basic tactical unit of the legions. The senior centurion of the legion was called the Primus pilus, a career soldier and adviser to the legate; he was generally 50 years of age or older. There were also additional officers assigned to each legion, an Aquilifer, Imaginifer (Imperial Rome only), a Tesserarius, and a Cornicen. The aquilifer was in charge of the legion standard, so there was only one per legion. The legion standard created a sense of unit loyalty. The soldiers' loyalty to their unit also created rivalries between some units in the same army.[4]

The imaginifer carried an image of the emperor (whichever one was in power at the time). The tesserarius was in charge of the guard outposts for each century. The cornicen was crucial in the heat of battle, as he blew the formation, attack, withdrawal, and many other notes. This was the only way legionaries and their officers could hear or issue orders in the din of battle.

Every legion had a baggage train of 500-550 mules, or about 1 mule for every 10 legionaries. To keep these baggage trains from becoming too large, Marius had each man carry as much of his own equipment as he could, including his own armor, weapons and 15 days' rations or about 50-60 pounds (22.5-27 kg) of load total. To make this easier, he issued each legionary a forked stick to carry his load on his shoulders. The soldiers were nicknamed Marius' Mules (muli mariani in Latin) due to the amount of gear they had to carry themselves.

A typical legion of this period had around 5,000-6,000 legionaries as well as a large number of camp followers, servants and slaves. Legions could contain as many as 6,000 fighting men divided among several cohorts. Numbers would also vary depending on casualties suffered during a campaign; Julius Caesar's legions during his campaign in Gaul often only had around 3,500 men and on one occasion during his civil war against Pompey he had to join two of his battle-reduced legions together to achieve the strength of one conventional legion.

Hundreds of years later, under the Emperor Diocletian and his successors, new legions raised for the field armies, as opposed to those stationed along the frontiers, were recruited to only about 1,000 men and were, therefore, the size of military auxiliary cohorts. This was a response to the logistical needs of the late Empire: the smaller units were more easily dispatched as needed to trouble spots than were the older, larger units, and they were no longer made up exclusively of fully armored heavy infantry. Instead, they often consisted of light infantry or archers. Except with regard to Roman citizenship (and even then not always), they were in fact no longer sharply distinguished, if distinguished at all, from auxiliary units raised from barbarians within and without the Empire. These later legions (comitatenses) should not be confused with the legions of heavy infantry of the earlier empire.

Further reading

  • Julius Caesar, The Gallic War.
  • Julius Caesar, The Civil Wars.
  • Flavius Vegetius, Epitoma de Re Militari.
  • Erik Hildinger, Swords Against the Senate: The Rise of the Roman Army and the Fall of the Republic, Da Capo Press 2002 (softcover ISBN 978-0-306-81279-8).
  • Pamela Bradley, Ancient Rome: Using Evidence chapter 15

References

  1. ^ "Polybius o Histories -- Book 6". penelope.uchicago.edu. Retrieved .
  2. ^ D.B. Saddington (2011) [2007]. "the Evolution of the Roman Imperial Fleets," in Paul Erdkamp (ed), A Companion to the Roman Army, 201-217. Malden, Oxford, Chichester: Wiley-Blackwell. ISBN 978-1-4051-2153-8. Plate 12.2 on p. 204.
  3. ^ Coarelli, Filippo (1987), I Santuari del Lazio in età repubblicana. NIS, Rome, pp 35-84.
  4. ^ Flower, Harriet (2004). The Cambridge Companion to the Roman Republic. United States of America: Cambridge University Press. ISBN 0-521-80794-8.

External links


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