Roman army

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Roman Army

The Roman Army was the terrestrial armed forces deployed by the Roman Kingdom, the Roman Republic, the Roman Empire, and its later subdivisions, the Western Roman Empire and the Eastern Roman Empire. It is considered one of the most effective and enduring military institutions in the history of warfare. The Roman Army's evolution through time reflects changes in administrative and operational demands, adapting to new challenges and exploiting technological and tactical innovations.

History[edit | edit source]

The history of the Roman Army can be divided into three main eras: the Army of the Roman Kingdom (c. 753–509 BC), the Army of the Roman Republic (509–27 BC), and the Army of the Roman Empire (27 BC – AD 476 in the West, and until 1453 in the East).

Army of the Roman Kingdom[edit | edit source]

In the earliest days, the Roman Army was a citizen militia under the leadership of the King of Rome. Soldiers were drawn from the ranks of Roman citizens, each responsible for providing his own equipment. This period saw the formation of a basic military structure, including the division of soldiers into legions.

Army of the Roman Republic[edit | edit source]

The transition to the Roman Republic brought significant changes, with the army becoming a more structured and professional force. The manipular legion, divided into maniples, allowed for greater flexibility and tactical advantage on the battlefield. During this period, Rome expanded its territories, requiring a larger and more permanent military presence.

Army of the Roman Empire[edit | edit source]

Under the Roman Empire, the army became a fully professional institution, with soldiers signing up for 25 years of service. This period saw the introduction of heavy infantry, known as legionaries, and auxiliary troops drawn from non-Roman citizens, providing cavalry and specialized units. The Roman Army reached its peak size and capability, securing the empire's borders and maintaining peace and stability across its provinces.

Organization[edit | edit source]

The Roman Army's organization was complex and adapted over time to meet the empire's needs. The basic unit was the legion, consisting of heavy infantry. Each legion was supported by a number of auxiliary units, including cavalry, archers, and engineers. The army was led by generals, with the Roman Emperor holding the ultimate command as Imperator.

Legions[edit | edit source]

A legion was typically composed of 4,000 to 6,000 soldiers, divided into cohorts and further into centuries. Legions were numbered and often named after their founders or honored with titles reflecting their achievements or the favor of the Roman state.

Auxiliaries[edit | edit source]

Auxiliary troops were non-citizen soldiers who served alongside the legions. They were often recruited from conquered peoples and provided specialized skills, such as cavalry, light infantry, and archers. Upon completion of their service, auxiliaries were granted Roman citizenship.

Tactics and Equipment[edit | edit source]

The Roman Army was renowned for its discipline, training, and the use of advanced tactics and equipment. The standard equipment of a Roman legionary included the gladius (a short sword), pilum (a heavy javelin), and scutum (a large shield). Soldiers wore protective armor, including helmets and breastplates. The army's success was also due to its rigorous training and the use of sophisticated siege engines and fortifications.

Legacy[edit | edit source]

The Roman Army left a lasting legacy on the art of warfare, influencing military tactics and organization for centuries. Its emphasis on discipline, training, and a professional standing army set standards that are still admired and studied by modern military historians and practitioners.


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