0 0 ▁soldiers . ▁ ▁It ▁was ▁said ▁that ▁T ian ▁Bu ▁contributed ▁to ▁vict ories ▁in ▁ 1 8 ▁batt les . ▁ ▁In ▁particular , ▁in ▁ 8 1 7 , ▁when ▁the ▁ch an cell or ▁Pe i ▁Du ▁was ▁at ▁the ▁front ▁to ▁over see ▁the ▁operation , ▁there ▁was ▁an ▁occasion ▁when ▁Pe i ▁was ▁review ing ▁the ▁building ▁of ▁a ▁fort ▁at ▁Tu ok ou ▁( <0xE6> <0xB2> <0xB1> 口 , ▁in ▁modern ▁Lu o he , ▁Hen an ), ▁when ▁the ▁Z hang yi ▁officer ▁D ong ▁Ch ong z hi ▁( <0xE8> <0x91> <0xA3> 重 <0xE8> <0xB3> <0xAA> ) ▁made ▁a ▁surprise ▁attack ▁on ▁Pe i ' s ▁location , ▁nearly ▁reaching ▁Pe i . ▁ ▁It ▁was ▁due ▁to ▁the ▁efforts ▁of ▁T ian ▁Bu ▁and ▁Li ▁Gu ang yan ▁that ▁Pe i ▁was ▁able ▁to ▁fle e , ▁and ▁it ▁was ▁said ▁that , ▁after ▁T ian ▁cut ▁off ▁the ▁Z hang yi ▁soldiers ' ▁escape ▁route , ▁the ▁Z hang yi ▁soldiers ▁fell ▁into ▁a ▁d itch ▁and ▁suffered ▁more ▁than ▁ 1 , 0 0 0 ▁cas ual ties ▁as ▁a ▁result . ▁ ▁After ▁the ▁Z hang yi ▁campaign ▁ended ▁in ▁victory ▁later ▁in ▁the ▁year , ▁T ian ▁Bu ▁was ▁made ▁a ▁general ▁of ▁the ▁imperial ▁gu ards . ▁ ▁In ▁ 8 1 8 , ▁when ▁his ▁mother ▁died , ▁he ▁left ▁government al ▁service ▁to ▁observe ▁a ▁m our ning ▁period ▁for ▁her , ▁but ▁was ▁soon