 The Europeans were also concerned about the long @-@ term goals of the Mongols . Early Mongol diplomacy had been not a simple offer of cooperation , but straightforward demands for submission . It was only in later communications that Mongol diplomats started to adopt a more conciliatory tone ; but they still used language that implied more command than entreaty . Even the Armenian historian Hayton of <unk> , the most enthusiastic advocate of Western @-@ Mongol collaboration , freely admitted that the Mongol leadership was not inclined to listen to European advice . His recommendation was that even if working together , European armies and Mongol armies should avoid contact because of Mongol arrogance . European leaders were aware that the Mongols would not have been content to stop at the Holy Land , but were on a clear quest for world domination . If the Mongols had achieved a successful alliance with the West and destroyed the Mamluk Sultanate , they certainly would have eventually turned upon the Franks of Cyprus and the Byzantines . They also would have surely conquered Egypt , from which they could have continued an advance into Africa , where no strong state could have stood in their way until Morocco and the Islamic caliphates in the Maghreb . 
