The Crusades: The Authoritative History of the War for the Holy Land

by Thomas Asbridge

To begin with, the crusades were, at the very least, as much acts of Christian aggression as wars of defence. It is certainly true that Islam had initiated its own unprovoked surge of invasion and expansion in the seventh century, but the mercurial vigour of this onslaught had long since slackened. The First Crusade was not launched in response to an overwhelming and impending threat, nor was it the immediate result of any catastrophic loss. Jerusalem, the campaign’s averred goal, had been conquered by Muslims some four centuries earlier–hardly a recent injury. The accusations of widespread or systematic abuse of Christian subjects or pilgrims by the Islamic overlords of the Levant also appear to have had little basis in fact. After the First Crusade’s seemingly miraculous success and the foundation of the crusader states, the war for the Holy Land was perpetuated by cycles of violence, vengeance and reconquest, in which Christians and Muslims alike perpetrated acts of savage brutality.