iji ▁inv aded ▁M ing ▁territory ▁in ▁L ia oning ▁under ▁the ▁pre text ▁of ▁illegal ▁construction ▁on ▁Jin ▁lands . ▁ ▁Background ▁ ▁The ▁Jin ▁k han ▁Nur ha ci ▁was ▁wounded ▁in ▁the ▁Battle ▁of ▁N ing y uan ▁the ▁previous ▁year ▁and ▁died . ▁His ▁successor ▁Hong ▁Ta iji ▁ordered ▁A min ▁to ▁attack ▁the ▁kingdom ▁of ▁Jose on ▁( K ore a ). ▁He ▁himself ▁led ▁a ▁force ▁of ▁ 4 0 , 0 0 0 ▁to ▁attack ▁the ▁M ing ▁city ▁of ▁Jin z hou . ▁ ▁Cour se ▁of ▁battle ▁ ▁The ▁Later ▁Jin ▁inv aded ▁M ing ▁territory ▁in ▁L ia oning ▁under ▁the ▁pre text ▁of ▁illegal ▁construction ▁on ▁Jin ▁lands . ▁The ▁M ing ▁court ▁immediately ▁dispatch ed ▁a ▁relief ▁army ▁of ▁ 3 0 , 0 0 0 . ▁ ▁Hong ▁Ta iji ▁led ▁a ▁force ▁of ▁ 4 0 , 0 0 0 ▁to ▁Jin z hou , ▁where ▁he ▁began ▁negoti ations ▁with ▁M ing . ▁When ▁M ing ▁refused ▁to ▁respond , ▁he ▁assault ed ▁the ▁city . ▁The ▁battle ▁was ▁close ▁and ▁at ▁one ▁point ▁it ▁appeared ▁that ▁the ▁western ▁guard ▁tower ▁was ▁about ▁to ▁fall , ▁but ▁the ▁commander ▁Z ha o ▁Sh ua ij iao ▁r al lied ▁the ▁def enders ▁in ▁that ▁area ▁and ▁rep elled ▁the ▁Jin ▁soldiers . ▁After ▁half ▁a ▁day ▁of ▁fighting , ▁Hong ▁Ta iji ▁sound ed ▁the ▁retre at ▁and ▁pulled ▁back ▁out ▁of ▁the ▁range ▁of ▁M ing ▁can