Edhasa, 2019

"Exhaustively researched, acutely analysed,

beautifully written"

– Times Literary Supplement 2018 Books of the Year

"A gripping account"

– Financial Times 2018 Books of the Year: History


Winner of the 2019 Verbruggen Prize for best book in medieval military history

The first comprehensive history of the most decisive military campaign of the Third Crusade and one of the longest wartime sieges of the Middle Ages. Translated into Spanish and published by Edhasa in 2019.

From the publisher: 

The two-year-long siege of Acre (1189–1191) was the most significant military engagement of the Third Crusade, attracting armies from across Europe, Syria, Mesopotamia, Egypt, and the Maghreb. Drawing on a balanced selection of Christian and Muslim sources, historian John D. Hosler has written the first book-length account of this hard-won victory for the Crusaders, when England’s Richard the Lionheart and King Philip Augustus of France joined forces to defeat the Egyptian Sultan Saladin. Hosler’s lively and engrossing narrative integrates military, political, and religious themes and developments, offers new perspectives on the generals, and provides a full analysis of the tactical, strategic, organizational, and technological aspects on both sides of the conflict. It is the epic story of a monumental confrontation that was the centerpiece of a Holy War in which many thousands fought and died in the name of Christ or Allah.


From peer reviews:

  • "impressive analysis"

  • "confident and highly engaging"

  • "essential reading"

  • "scrupulously researched"

  • "pleasing eye for detail"

  • "of great value to historians"

  • "a masterful narrative and analysis"

  • "este magnifico libro"


"indispensable reading by an audience of military, intellectual, and political historians interested

in the twelfth century"

– Cary J. Nederman, Texas A&M University 


From the publisher:

The English scholar John of Salisbury was a major intellectual of the twelfth century whose contributions to the fields of education, grammar, political theory, and rhetoric are well-known. His significance is amplified further in John of Salisbury: Military Authority of the Twelfth-Century Renaissance, in which John D. Hosler examines his heretofore overlooked contributions to the ideals and practice of medieval warfare. This book surveys an array of military topics present within John’s extant corpus, including generalship, strategy, tactics, logistics, military organization, and training; it also collates John’s military lexicon and charts the influence of classical texts upon his conceptualization of war. John of Salisbury, it argues, deserves inclusion in the roll-call of military theoreticians and writers of pre-Reformation Europe.

From peer reviews: 

  • "very impressive, insightful, and well-researched book"

  • "a model for future studies"

  • "fascinating study"

  • "a thorough analysis"

  • "an important work"


"valuable for specialists in medieval military history and the history of twelfth-century Europe"

– David S. Bachrach, University of New Hampshire



From the publisher:

There are no book-length studies in any language on the military career of King Henry II of England (1154-1189). Historians have generally regarded his warfare as cautious and limited, and the king himself, while noted for his considerable political and legal accomplishments, is not considered one of the great commanders of the Middle Ages. This book reexamines the medieval evidence and situates Henry II within the context of practiced warfare of the twelfth century. It sketches a narrative of his military activities from boyhood to death and examines his use of fortifications, manpower, strategy, tactics, and weaponry in the prosecution of war. The result is a revision of the king's military legacy: far from a passive or disinterested general, Henry II sought to vanquish his foes and expand his empire by way of direct military confrontation and was, in reality, a proficient commander of men.

From peer reviews:

  • "a useful guide to the debate about twelfth-century warfare"

  • "flüssig geschiebenen Werkes ... zu einen Gewinn"


John D. Hosler and Steven Isaac, eds. Military Cultures and Martial Enterprises in the Middle Ages: Essays in Honour of Richard P. Abels 

From the publisher:

Essays on aspects of medieval military history, encompassing the most recent critical approaches. The essays in this volume honour the career and achievements of Richard Abels, the distinguished historian of medieval military history; in particular, they aim to reflect how the "cultural turn" in the field has led to exciting new developments in scholarship. Ranging from the late eighth century to the fifteenth, from northern England to the Levant, the chapters analyze how medieval kings and commanders practiced a genuine military science, how the meanings of victory and defeat were constructed by chroniclers and whole societies, how wars were remembered and propagandized, and how religion and war mixed.


From the publisher:

Where Heaven and Earth Meet is a Festschrift in honor of Daniel F. Callahan, Professor of History at the University of Delaware. It is an interdisciplinary collection that celebrates and advances research in his principal scholarly interests. One central focus is on the writings of Ademar of Chabannes and what they reveal about heresy, music, warfare, and the Peace of God in the early Middle Ages. Another is on Western religious history (ecclesiastical houses, hagiography, and papal writings), and the collection is rounded out by studies of early Islamic Jerusalem as well as Arabic numismatics. Contributing authors include Professor Callahan’s former classmates, graduate students, colleagues and admirers of his research. The collection will be of interest to researchers in art history, history, musicology, and religion.