Kerak

Reconstructing battlefields of the Crusades through terrain analysis, primary sources and on-site research

Walking the battlefields of the Crusades

Origins of the Crusades

The Crusades were a series of campaigns over nearly two centuries that pitted the Christian kingdoms of Europe against the Islamic empires of the East. The period was dominated by sieges and shifting alliances that drew warriors, pilgrims, monarchs and empires into one of the most enduring military struggles of the medieval world. Fought from Anatolia and the Levant to Egypt, North Africa and the Baltic, these conflicts unfolded across deserts, fortified cities, mountain passes, fertile plains and caravan routes that shaped every operational decision.

The origins of the conflict can be traced to the Battle of Manzikert in 1071, where a Seljuk Turk army destroyed the Byzantine army. After Manzikert, the Byzantine frontiers in Asia Minor were severely weakened, and the Seljuk Turks occupied Jerusalem. In response, the Byzantine Emperor appealed for help against the advancing Turks, and Pope Urban II called for a Crusade to recapture the Holy Land, particularly Jerusalem, from Muslim control.

1st to 3rd Crusades

The First Crusade (1096–1099) set the pattern for the many crusades that followed. European leaders gathered volunteer armies for the long marches across Anatolia. Major cities were besieged, and battles were fought for control of roads and river crossings. The captures of Antioch and Jerusalem were achieved only through determined siegecraft, internal factional struggles and timely reinforcements, establishing Crusader states that were permanently vulnerable to geography and distance.

At the Battle of Hattin in 1187, Saladin lured the Crusader Army to its destruction, leaving the already vulnerable Crusader states almost defenceless. Jerusalem fell to the Saracens, and despite a powerful Third Crusade led by Richard I of England and Phillip of France, Jerusalem was not retaken. Commanders such as Saladin and Richard the Lionheart clashed at battles where terrain dictated tempo: Richard’s coastal march to Acre, the fighting withdrawal at Arsuf and the defence of strongpoints such as Kerak Castle, where the fortress’s towering spur and multi-layered fortifications allowed a small garrison to withstand repeated assaults.

Later Crusades

The later Crusades shifted the theatre repeatedly: a Byzantine–Crusader clash during the Fourth Crusade, Egypt as the objective during the Fifth and Seventh Crusades, and the increasingly desperate defence of the remaining Crusader strongholds along the Levantine coast. Cities such as Acre, Montfort, Krak des Chevaliers and Jerusalem became focal points of siege warfare and counter-siege innovation, culminating in the fall of Acre in 1291 and the end of the Crusader period in the Levant.

This collection of battlefield studies examines these campaigns through medieval chronicles, archaeological remains, fortress architecture and on-ground reconnaissance — explaining how strategy, leadership and terrain shaped one of history’s most complex and iconic periods of warfare.

Selected works on Medieval Warfare

Understanding a thousand years of conflict through the historians who shaped the field

The study of medieval warfare spans more than a millennium of military, social and technological change, and its literature reflects the diversity and complexity of that evolution. Rather than a single historical arc, scholars have approached the medieval conflicts through multiple lenses: feudal obligation, chivalric culture, technological innovation, religious motivation, and the gradual emergence of centralised states. The result is a rich body of work that helps modern readers move beyond stereotypes of knights and castles to understand how and why medieval armies actually fought.

Much of the foundational scholarship centres on the structure of feudal military service, the development of the knightly class, and the shifting balance between cavalry, infantry and missile troops. Authors such as R. C. Smail, Hans Delbrück, and Charles Oman helped frame early academic debates, analysing the limitations of feudal levies and the tactical patterns visible from Hastings to the Crusades. More recent historians — including John France, Matthew Bennett, Christopher Gravett and David Nicolle — have brought sharper focus to campaign logistics, siegecraft, and the influence of terrain on medieval operations.

For the later Middle Ages, works by Jonathan Sumption, Anne Curry, Bertrand Schnerb, and Kelly DeVries offer detailed examinations of the Hundred Years’ War, exploring everything from longbow tactics at Crécy and Agincourt to the political and social factors behind shifting battlefield fortunes. Their studies also show how professionalism, paid armies and gunpowder warfare began to eclipse older feudal structures. On the eastern frontiers, the military histories of the Byzantine Empire and the Mongol conquests — illuminated by scholars such as John Haldon and Timothy May — reveal very different tactical systems and strategic cultures.

Together, these authors present a layered picture of medieval warfare: a world where faith, feudalism, technology, and emerging state power shaped how campaigns were fought and remembered. The Reading Room selections gathered here provide entry points into that vast scholarship, helping readers understand not just the battles themselves, but the historians and interpretations that define our modern understanding of the medieval battlefield.