civil wars, which seriously weakened its ability to repel or defeat invasions from outside its frontiers. The East Roman or Byzantine empire on the other hand had fewer civil wars to contend with in the years from 383-432 A.D. See also Battle of Strasbourg Historiography of the fall of the Western Roman Empire – article dealing with the Late Roman Empire Roman army East Roman army Structural history of the Roman military Citations References Ancient Ammianus Marcellinus, Roman History (late 4th century) Zosimus, Historia Nova (5th century) Notitia Dignitatum, Augustana (late 4th/early 5th century) Modern The Cambridge History of Greek and Roman Warfare, vol. 2: Rome from the Late Republic to the Late Empire, ed. P. Sabin, H. van Wees and L.M. Whitby (Cambridge University Press 2007) Coulston, J.C.N. (1990) "Later Roman armour, 3rd-6th centuries AD", Journal of Roman Military Equipments Studies, 1 (1990) 139-60. Cowan, Ross (2015). Roman Legionary, AD 284-337: The Age of Diocletian and Constantine the Great Cowan, Ross (2016). Milvian Bridge AD 312: Constantine's Battle for Empire and Faith Rance, Philip, "Campidoctores, vicarii vel tribuni: the senior regimental officers in the late Roman army and the rise of the campidoctor" in A.S. Lewin and P. Pellegrini (ed.), The Late Roman Army in the Near East from Diocletian to the Arab Conquest ([BAR Int. Ser. 1717] Oxford 2007) 395-409 Tomlin, R.S.O. (2000), 'The Legions of the Late Empire' in R.J. Brewer, Roman Fortresses and their Legions. Papers in Honour of George C. Boon (London/Cardiff 000) 159-181. Treadgold, Warren (1995) Byzantium and Its Army, 284-1081, Stanford: Stanford University Press. Webster, G. (1998) The Roman Imperial Army of the First and Second Centuries A.D.'' University of Oklahoma Press. External links Diocletian and the Roman Army Later Roman Battle Tactics The Last Legion Champions and Tradition: Single Combat in the Age of Belisarius Roman army reenactors Comitatus Historical reenactment and Living history group portraying the Late Roman army in northern England Britannia Historical reenactment/Living history The largest (and oldest) Late Roman group in the UK, with members located around the country. Late Roman army Diocletian