Dominate-era Roman military

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Social and economical standing of soldiers

The Roman army of the third and fourth centuries changed gradually through wars, civil conflicts and reforms under several emperors. Caracalla’s edict of AD 212 extended citizenship to most free inhabitants of the empire, but did not abolish all distinctions between legions and auxiliary units by a single decision.

The late Roman army included field and frontier forces, guards, and different kinds of infantry and cavalry. Their legal status, recruitment and prestige changed over time. Older unit names could survive changes in composition and role.

Military draft

Military service offered pay, supplies, donatives and certain privileges. Remuneration could include money and provisions; its amount and reliability depended on date, unit and state finances. It cannot be reduced to a fixed gold payment, nor were all soldiers exempt from every tax.

Promotion depended on experience, patronage, merit and available posts. Specialist roles included standard-bearers and drill instructors, or campidoctores. Service could lead to command, but there was no automatic career ladder from private soldier to commander for everyone.

Dominate-era officer, reconstruction

Organization and equipment

Detachments from legions and the development of field armies altered military organisation. Unit strengths varied: an estimate of a thousand men cannot be applied to every late Roman legion or auxiliary formation. Guard scholae should not be treated as an ordinary kind of infantry cohort.

Equipment included new helmet forms, long swords or spathae, and round and oval shields. Mail and scale armour remained important protection. Kits differed by date, station and function; changes did not occur simultaneously across the empire.

Infantry used spears, javelins and lead-weighted darts, or plumbatae. Modern reenactors can share some clothing and armour between impressions, but the practical interchangeability of replica kits does not establish a single ancient standard for spearmen, archers and riders.

The Dominate-era hastatus, reenactment

Dominate-era sagittarius, reconstruction

Dominate-era lancearius, reenactment

Vegetius describes formations that distinguish steady heavy-armed lines, mobile missile troops and archers, and reserves. His recommendations combine practices of his own time with older traditions. They are not a mandatory establishment under which every fourth-century legion stood six ranks deep with identical weapon allocation.

Formation depth, infantry and cavalry deployment, and the use of missile troops and reserves depended on terrain, opponent and task. Roman infantry could defend, attack and participate in pursuit; initiative cannot be assigned exclusively to cavalry.

Dominate-era roman infantry in battle

Romans take on Goths

Conclusion

Late Roman forces won victories and suffered defeats while adapting to changing conditions. The weakening of western imperial authority in the fifth century involved wars, political competition, lost tax territories and changing relationships with military allies, not a single cause.

The eastern empire retained and transformed Roman military traditions. The development of the theme system is conventionally connected with seventh-century changes, rather than a completed sixth-century reform.

Alamannic chiftain Honodomarius surrenders to Caesar Julianus after battle at Argentoratum.

The Roman army of the Dominate era included quite a lot of combat arms, perhaps more than ever before in its history. In addition to aforementioned spearmen and archers late Roman army included: - Skirmishers- lancearii - Horse archers - Equites Sagittarii - Armoured lancers - Clibanarii and Cataphractii - A variety of throwing machines with their crews - Ballistarii - Slingers - Funditores and Fundibulatores - Light horse skirmishers - Equites Mauri, Equites Dalmati and others - Heavy cavalry - Equites Promoti and others And many more!

Literature and sources

1) The Roman Army in the IV century. From Constantine to Theodosius. A.V. Bannikov 2) Armies of the Late Roman Empire. AD 284 to 476. History, Organization and Equipment. G. Esposito 3) De Re Militari. Publius Flavius Vegetius Renatus 4) Rerum Gestarum. Ammianus Marcellinus 5) The Fate of Rome: Climate, Disease, and the End of an Empire, Kyle Harper 6) Roman Empire and the Indian Ocean: Rome’s Dealings with the Ancient Kingdoms of India, Africa and Arabia, Raoul McLaughlin