information:extraction, linguistic:translation
Fall

In 1218, a small contingent of Mongols crossed borders in pursuit of an escaped enemy general. Upon successfully retrieving him, Genghis Khan made contact with the Shah. Having only recently conquered two-thirds of what would one day be China, Genghis was looking to open trade relations, but having heard exaggerated reports of the Mongols, the Shah believed this gesture was only a ploy to invade his land. Genghis sent emissaries to Khwarezm (reports vary – one stating a group of 100 Muslim merchants with a single Mongol leading them, others state 450) to emphasize his hope for a trade road. The Shah, in turn, had one of his governors (Inalchuq, his uncle) openly accuse the party of spying, their rich goods were seized and the party was arrested.

Trying to maintain diplomacy, Genghis sent an envoy of three men to the Shah, to give him a chance to disclaim all knowledge of the governor's actions and hand him over to the Mongols for punishment. The shah executed the envoy (again, some sources claim one man was executed, some claim all three were), and then immediately had the Mongol merchant party (Muslim and Mongol alike) put to death and their goods seized. These events led Genghis to retaliate with a force of 100,000 to 150,000 men that crossed the Jaxartes in 1219 and sacked the cities of Samarkand, Bukhara, Otrar and others. Muhammad's capital city, Urgench, followed soon after.

Ala ad-Din Muhammad fled and sought refuge in Khorasan, and later died of pleurisy on an island in the Caspian Sea near the port of Abaskun some weeks later.