Page "Ögedei Khan" Paragraph 5

During the Mongol conquest of Eastern Persia, Ögedei and Chagatai massacred the residents of Otrar after a five-month siege in 1219 – 20 and joined Jochi who was outside the walls of Urganch.

Because Jochi and Chagatai were quarreling over the military strategy, Ögedei was appointed by Genghis Khan to oversee the siege of Urganch.

They captured the city in 1221.

When the rebellion broke out in south east Persia and Afghanistan, Ögedei also pacified Ghazni.