The mobility of individual mounted soldiers made it possible to send Mongol cavalry on successful scouting missions, gathering intelligence about routes and searching for terrain suited to the preferred combat tactics of the Mongols... To avoid the deadly hail of missiles, enemies would frequently spread out, or seek cover, breaking up their formations and making them more vulnerable to the lancers' charges. Likewise, when they packed themselves together into dense square or phalanx style formations, they would become more vulnerable to the arrows. Using the passage as a reference, how was Genghis Khan able to create the largest land empire in history?​