peror ▁sh el ved ▁the ▁campaign ▁because ▁of ▁the ▁mem orial , ▁but ▁brought ▁it ▁up ▁again ▁the ▁next ▁year . ▁O bl ig ated ▁to ▁follow ▁a ▁policy ▁that ▁he ▁did ▁not ▁agree ▁with , ▁Z hang ▁J ing ▁sought ▁peace ▁with ▁M ạ c ▁ Đ ă ng ▁D ung ▁while ▁trying ▁port ray ▁the ▁peace ▁as ▁a ▁victory ▁for ▁the ▁M ing . ▁He ▁ad vised ▁Ma o ▁Bow en ▁( <0xE6> <0xAF> <0x9B> <0xE4> <0xBC> <0xAF> <0xE6> <0xBA> <0xAB> ), ▁the ▁commander - in - ch ief ▁of ▁the ▁expedition ary ▁forces , ▁to ▁concent rate ▁troops ▁on ▁the ▁border ▁but ▁not ▁to ▁eng age ▁the ▁M ạ c ▁men ▁in ▁battle . ▁The ▁presence ▁of ▁the ▁Chinese ▁forces ▁on ▁the ▁border ▁was ▁enough ▁to ▁threaten ▁M ạ c ▁ Đ ă ng ▁D ung ▁into ▁submission . ▁Z hang ▁J ing ▁worked ▁with ▁M ạ c ▁ Đ ă ng ▁D ung ▁to ▁make ▁sure ▁the ▁latter ▁wrote ▁a ▁letter ▁of ▁surrender ▁that ▁was ▁acceptable ▁to ▁the ▁M ing ▁court . ▁In ▁the ▁end , ▁M ạ c ▁ Đ ă ng ▁D ung ▁declared ▁his ▁submission ▁to ▁the ▁M ing ▁in ▁a ▁ceremony ▁at ▁Zh enn an ▁Pass ▁in ▁ 1 5 4 0 , ▁and ▁the ▁M ing ▁allowed ▁M ạ c ▁to ▁rule ▁northern ▁Vietnam . ▁A ▁major ▁war ▁was ▁a vert ed . ▁ ▁Z hang ▁J ing ▁went ▁on ▁to ▁sub due ▁the ▁ab original s ▁tribes ▁in ▁western ▁Gu ang xi ▁and