Crusades In 1095, Pope Urban II called for the First Crusade in a sermon at the Council of Clermont. He encouraged military support for the Byzantine Empire and its Emperor, AlexiosI, who needed reinforcements for his conflict with westward migrating Turks colonizing Anatolia. One of Urban's aims was to guarantee pilgrims access to the Eastern Mediterranean holy sites that were under Muslim control but scholars disagree as to whether this was the primary motive for Urban or those who heeded his call. Urban's strategy may have been to unite the Eastern and Western branches of Christendom, which had been divided since
Pope Urban II than to his own desire that Jerusalem be freed from Muslim rule. It was believed that originally that Urban wanted to send a relatively small force to aid the Byzantines, however after meeting with two prominent members of the crusades Adhemar of Puy and Raymond of Saint-Guilles, Urban decided to rally a much larger force to retake Jerusalem. Urban II refers to liberating the church as a whole or the eastern churches generally rather than to reconquering Jerusalem itself. The phrases used are "churches of God in the eastern region" and "the eastern churches" (to the Flemish), "liberation of the