Original: In November of 1257, under the command of Hulagu Khan (also spelled as Hulegu) and the Jalayir general Koke Ilge and with the Chinese commander Guo Kan in vice-command, it set out for Baghdad.
Simplified: The Abbasid caliphs were the second of the Islamic dynasties, The besieging army The Mongol army, led by Hulagu (also spelled as Hulegu) Khan and the Chinese commander Guo Kan in vice-command, set out for Baghdad in November of 1257.