Introduction

The ‘barbarisation’ of the Roman army has become a popular explanation for the end of the Roman Empire. While the empire possessed a strong army of professional Roman soldiers, it could not fail; therefore its end in AD476 was the result, directly or indirectly, of the failure of the army. And since by the fifth century AD the army had come to incorporate many non-Romans into its ranks, logic follows that this ‘de-romanisation’ of the army – the deterioration of Roman military discipline, the end of the legions of the Principate – made the army ineffective and weak.¹