 In 1360, and again in 1361, Timur invaded the western half in the hope that he could reunify the khanate.At their height, the Chaghataite domains extended from the Irtysh River in Siberia down to Ghazni in Afghanistan, and from Transoxiana to the Tarim Basin.Moghulistan occupied the settled lands of Eastern Turkestan as well as nomad lands north of Tengri tagh.