I posted earlier about the Death Of The Naiman Adventurer Khüchüleg. With Khüchüleg no longer in the picture, Chingis Khan was free to invade Khwarezmia and avenge the Deaths of His Envoys to Otrar. According to the Secret History of the Mongols, he announced:
I shall set out against the Sarta’ul people [Khwarezmians],
To take revenge
To requite the wrong
for the slaying of my hundred envoys with Ukhuna at their head . . .”
His anger over the murder of his envoys to the Khwarezmshah may have cooled, but his resolution to exact retribution had stiffened. His intelligence networks would have informed him that while the Khwarezmshah was inflicted by infighting among his family and court and by rising discontent among the populace of his empire, he was still capable of putting half as million or so soldiers into the field. It would not do to ride off half-cocked against such an enemy. Chingis organized the invasion of Khwarezmia in the same step-by-step methodical way he had attacked and finally defeated the Chin in northern China.
As the final preparation were being made to depart from Mongolia one of his wives, Yesüi Khatan, decided it was time to speak up. Yesüi Khatan seemed to hold a special place in the heart of Chingis Khan. She was a member of the Tatar tribe whom the Mongols had earlier defeated. He had first married her younger sister, but the latter soon intimated that her older sister Yesüi might be a better wife for Chingis. In the confusion following the defeat of the Tatars the older sister Yesüi had somehow disappeared. Chingis sent men to track her down and they eventually found her in the company of a man to whom she had been betrothed . . . Continued.