In one part of this conflict, Shahanshah lost fifty thousand
Walter the Penniless was defeated during this conflict by Kilij Arslan. In one part of this conflict, Shahanshah lost fifty thousand Fatimid troops at Ascalon. Among the stated justifications for this event were assisting Alexius Comnenus. Peter the Hermit led a popular section of this campaign, which caused the establishment of the Kingdom of (*) Jerusalem. The phrase "God Wills it!" was uttered by the crowd at a meeting that called for this armed event to begin. For 10 points, name this military campaign called by Pope Urban II at the Council of Clermont, the first of a series of expeditions to retake holy lands in the name of God.
Walter the Penniless was defeated during this conflict by Kilij Arslan.
{First Crusade}