Wikipedia:Today's featured article/May 3, 2009

The structural history of the Roman military describes the major chronological transformations in the organization and constitution of ancient Rome's armed forces, "the most effective and long-lived military institution known to history". From its origins around 800 BC to its final dissolution in 476 AD with the demise of the Western Roman Empire, Rome's military underwent substantial structural change. Rome's military structure passed through four distinct phases. Initially, Rome's military consisted of an annual citizen levy performing military service as part of their duty to the state. As the extent of the territories falling under Roman suzerainty expanded, and the size of the city's forces increased, the soldiery of ancient Rome became increasingly professional and salaried. In the third phase of the city's military development, Rome's forces were tasked with manning and securing the borders of the provinces brought under Roman control, as well as Italy itself. Strategic-scale threats were generally less serious in this period, and strategic emphasis was placed on preserving gained territory. In the final phase of Rome's military, military service continued to be salaried and professional for Rome's regular troops. The uniformity of structure found in Rome's earlier military forces disappeared. (more...)

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