Some historians see the Crusades as part of a purely defensive war against the expansion of Islam in the near east; some see them as part of long-running conflict at the frontiers of Europe; and others see them as confident, aggressive, papal-led expansion attempts by Western Christendom. Crusading attracted men and women of all classes. The masses involved were mainly attributed as being caused by disorder, an epidemic of ergotism and economic distress.[2] The Byzantine Empire was unable to recover territory lost during the initial Muslim conquests under the expansionist Rashidun and Umayyad caliphs in the Arab–Byzantine Wars and the Byzantine–Seljuq Wars; these conquests culminated in the loss of fertile farmlands[3] and vast grazing areas of Anatolia[4] in 1071, after a sound victory by the occupying armies of Seljuk Turks at the Battle of Manzikert. Urban II sought to reunite the Christian church under his leadership by providing Emperor Alexios I with military
Some historians see the Crusades as part of a purely defensive war against the expansion of Islam in the near east; some see them as part of long-running conflict at the frontiers of Europe; and others see them as confident, aggressive, papal-led expansion attempts by Western Christendom. Crusading attracted men and women of all classes. The masses involved were mainly attributed as being caused by disorder, an epidemic of ergotism and economic distress.[2] The Byzantine Empire was unable to recover territory lost during the initial Muslim conquests under the expansionist Rashidun and Umayyad caliphs in the Arab–Byzantine Wars and the Byzantine–Seljuq Wars; these conquests culminated in the loss of fertile farmlands[3] and vast grazing areas of Anatolia[4] in 1071, after a sound victory by the occupying armies of Seljuk Turks at the Battle of Manzikert. Urban II sought to reunite the Christian church under his leadership by providing Emperor Alexios I with military