▁seized ▁their ▁opportunity ▁and ▁captured ▁J ush i ▁and ▁Li uz h ong , ▁and ▁killed ▁the ▁Prote ctor ▁General ▁Chen ▁Mu . ▁In ▁ 7 6 , ▁the ▁Han ▁government ▁ab rog ated ▁the ▁Prote ctor ate ▁of ▁the ▁Western ▁Reg ions . ▁As ▁the ▁Western ▁Region ' s ▁situation ▁was ▁getting ▁prec ari ous , ▁Ban ▁Ch ao , ▁who ▁was ▁left ▁to ▁defend ▁Sh ule ▁and ▁Y ut ian , ▁won ▁the ▁support ▁of ▁the ▁local ▁officials ▁and ▁people ▁and ▁drove ▁the ▁X ion gnu ▁troops ▁from ▁the ▁capital ▁of ▁G um o ▁in ▁Sh ich eng . ▁In ▁ 8 0 , ▁he ▁wrote ▁to ▁the ▁imperial ▁court , ▁propos ing ▁that ▁they ▁send ▁more ▁troops ▁to ▁the ▁Western ▁Reg ions . ▁The ▁new ▁em peror ▁agreed ▁to ▁his ▁proposal ▁and ▁ordered ▁X u ▁Gan ▁to ▁lead ▁an ▁army ▁to ▁help ▁Ban ▁Ch ao . ▁▁ ▁During ▁the ▁war ▁against ▁the ▁X ion gnu ' s ▁al lies ▁which ▁last ed ▁several ▁dec ades , ▁Ban ▁Ch ao ▁distinguished ▁himself ▁as ▁a ▁states man ▁and ▁strateg ist . ▁R ely ing ▁on ▁the ▁various ▁national ities ▁in ▁the ▁Western ▁Reg ions , ▁he ▁un ited ▁all ▁the ▁people ▁and ▁maintained ▁the ▁unity ▁of ▁the ▁emp ire . ▁In ▁ 9 0 , ▁Ban ▁Ch ao ▁det ained ▁an ▁en voy ▁from ▁K ush an ▁who ▁requested ▁a ▁marriage ▁for ▁his ▁king . ▁In ▁ret ali ation , ▁the ▁K ush an ▁march ed ▁on ▁Ban ▁Ch ao ▁with ▁a