Why Could Ancient Rome Raise Bigger Armies Than Medieval Kingdoms?

The Roman Republic could field more than eighty thousand soldiers at the Battle of Cannae in 216 BC. Yet more than sixteen hundred years later, the King of England invaded France with just eight thousand men. In this episode, we explore why medieval armies were so much smaller than those of the ancient world — and what that tells us about the collapse and slow recovery of state power in Europe. Timestamps: 0:00 Introduction 0:40 The Fall of Roman Institutions 5:58 Military Cost and Capacity 13:09 Limits of Medieval War 14:38 The Mongols 17:41 Conclusion Topics Covered: -The collapse of Roman administrative and fiscal systems after the fall of the Western Empire -How political fragmentation and feudalism limited military mobilization -The role of logistics, infrastructure, and taxation in fielding large armies -Why medieval warfare played out on a smaller, more localized scale -The cost of professional soldiers and the limits of feudal levies -The First Crusade as a case study in medieval logistical dysfunction -How the Mongol Empire overcame the limitations that constrained European states -The gradual revival of state capacity in late medieval and early modern Europe #historydocumentary #ancienthistory #medieval #romanempire #warfare #militaryhistory #worldhistory #documentary #feudalism #mongols #logistics #darkages Sources & Further Reading Wickham, Chris. Framing the Early Middle Ages: Europe and the Mediterranean, 400–800. 2005. Wickham, Chris. The Inheritance of Rome: A History of Europe from 400 to 1000. 2009. Bachrach, Bernard S. & David S. Bachrach. Warfare in Medieval Europe c.400–c.1453. 2nd ed. 2021. Prestwich, Michael. Armies and Warfare in the Middle Ages: The English Experience. 1996. Contamine, Philippe. War in the Middle Ages. 1984. Verbruggen, J. F. The Art of Warfare in Western Europe during the Middle Ages: From the Eighth Century to 1340. 1997.