, ▁Es en ▁Bu qa ▁inv aded ▁the ▁Il k han ate ▁in ▁support ▁of ▁Du wa ' s ▁grand son , ▁Daw ud ▁K ho ja , ▁who ▁had ▁set ▁himself ▁up ▁in ▁eastern ▁Afghan istan . ▁He ▁defeated ▁an ▁Il k han ate ▁army ▁on ▁the ▁M urg ab ▁and ▁reached ▁as ▁far ▁as ▁Her at , ▁but ▁was ▁forced ▁to ▁retre at ▁when ▁the ▁Y uan ▁dynast y ▁attacked ▁him ▁from ▁the ▁east . ▁The ▁Y uan ▁army ▁dev ast ated ▁the ▁Iss yk - K ul ▁region . ▁In ▁ 1 3 1 5 ▁the ▁Ch ag at ay id ▁prince ▁Y asa ' ur ▁defect ed ▁to ▁the ▁Il k han ate , ▁only ▁to ▁re bel , ▁taking ▁K hor as an . ▁Both ▁Ch ag ata i ▁and ▁Il k han ate ▁forces ▁attacked ▁Y asa ' ur . ▁He ▁was ▁killed ▁as ▁he ▁fled . ▁Es en ▁Bu qa ▁I ▁died ▁in ▁ 1 3 1 8 , ▁at ▁which ▁point ▁K eb ek ▁returned ▁to ▁power . ▁He ▁made ▁peace ▁with ▁the ▁Il k han ate ▁and ▁the ▁Y uan ▁dynast y ▁and ▁re igned ▁until ▁ 1 3 2 5 . ▁ ▁Relig ious ▁conflict ▁( 1 3 2 5 - 1 3 3 8 ) ▁K eb ek ▁was ▁succeeded ▁by ▁his ▁three ▁brothers ▁in ▁succession . ▁El j ig ide y ▁and ▁Du wa ▁Tem ür ▁each ▁re igned ▁for ▁only ▁a ▁few ▁months . ▁T arm ash ir in ▁(