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1. often Crusade Any of the military expeditions undertaken by European Christians in the 11th, 12th, and 13th centuries to recover control of the Holy Land from the Muslims.
2. A holy war undertaken with papal sanction.
3. A concerted effort or vigorous movement for a cause or against an abuse: a crusade for literacy; a crusade against drunk driving.
intr.v. cru·sad·ed, cru·sad·ing, cru·sades
To engage in a crusade.

[French croisade and Spanish cruzada, both ultimately from Latin crux, cruc-, cross.]

cru·sad′er n.


(Government, Politics & Diplomacy) campaigning: a crusading lawyer.


[kruːˈseɪdɪŋ] adj [journalist, lawyer, newspaper] → militant(e)
References in classic literature ?
The Assistant Commissioner laughed a little; but the great man's thoughts seemed to have wandered far away, perhaps to the questions of his country's domestic policy, the battle-ground of his crusading valour against the paynim Cheeseman.
This study of crusading activity from the Second Council of Lyons to the Habsburg-Ottoman truce provides a valuable survey of military campaign, governmental planning religious evolution, and social change.
To others, especially when combined with Joseph Strayer's view of Philip IV as unsupportive of the papal crusading enterprise, it marked the effective end of any realistic hopes for new expeditions.
The lyricists composed verses at time of victory and at time of loss, telling of crusading invaders and beautiful Frankish women, he says.
These include the temporal limits traditionally placed on the crusading period.
Filling this gap, the current book attempts to present the Crusades "from the viewpoint of the Muslim people of the Levant," and aims to provide a supplemental and counterbalancing work to the body of literature that narrates the story of the crusading period from the European point of view, thus "enabling reader[s] to achieve a broader perspective on the period than they might do otherwise" (p.
Crusading commanders often lost control of their men, who then resorted to killing noncombatants.
It provides a meticulous study of the lay nobility's motivations for crusading and is predominantly focused on the twelfth century.
The 18 papers in the proceedings consider such topics as the geo-strategies and historical perspectives of Pope Urban II and 'Ali ibn Tahir al-Sulami, the impact of crusading ideology on early 12th-century Denmark, the rationality behind Manuel I Domnenos' attempt to reform the abjuration formula for converts from Islam, the Armenian kingdom and the Mongol-Frankish encounter, and Baybars and the crusades in Arab film and television.
The first article, by John France, the dean of historians who study crusading warfare, describes the very different approaches to warfare and tactics between westerners and Muslims.
The Crusading armies were only one of the conquering irruptions into the region in the millennium after the birth of Islam.
Jonathan Phillips is Professor of Crusading History at Royal Holloway in London University.