These surprise attacks left the Georgians in confusion as to the identity of their attackers: the record of one contemporary chronicler indicates that he is unaware of the nature of the attackers and does not mention them by name. In 1223, when the Mongols had seemingly deferred their plans regarding Georgia, King George IV's sister and successor Queen Rusudan wrote in a letter to Pope Honorius III, that the Georgians had presumed the Mongols were Christians because they fought Muslims, but they had turned out to be pagans. The Mongol invasion also inadvertently altered the fate of the Fifth Crusade. Georgia had planned to send its splendid army to open up a second front in the north at the same time as the European crusaders invaded from the west. Because the Mongols annihilated the Georgian army, it could not help, and the European Crusaders spent critical time waiting inactively for their allies who would never come.