"Against the Infidelsâ is Fulcher of Chartres eyewitness account of Pope Urban IIâs call-to-arms in 1095. This speech launched the First Crusade, but the several historical transcripts record it slightly differently. Fulcherâs account includes a section in which Urban assures crusaders they would be granted redemption from sins in exchange for their service. His is considered the most definitive eyewitness record of the speech, in contrast to Robert the Monkâs more dramatic interpretation of the event.