Roman Army Units in the Western Provinces (2)

The appearance of Roman soldiers in the 3rd century AD has long been a matter of debate and uncertainty, largely thanks to the collapse of central control and perpetual civil war between the assassination of Severus Alexander in 235 and the accession of the great Diocletian in 284.

During those years no fewer than 51 men were proclaimed as emperors, some lasting only a few days. Despite this app...