▁Wang , ▁capt uring ▁two ▁Ch eng de ▁out posts ▁just ▁south ▁of ▁N ang ong ▁( 南 宮 , ▁in ▁modern ▁X ing ta i ). ▁ ▁However , ▁as ▁rec ount ed ▁in ▁a ▁pet ition ▁from ▁B ai ▁Ju yi ▁to ▁Emperor ▁M uz ong ▁at ▁the ▁time , ▁he ▁then ▁became ▁bog ged ▁down ▁because ▁his ▁soldiers , ▁who ▁had ▁been ▁acc ustom ed ▁to ▁rich ▁re wards ▁from ▁the ▁imperial ▁government , ▁lost ▁their ▁motiv ation . ▁ ▁Meanwhile , ▁as ▁there ▁were ▁heavy ▁snow st orm s ▁at ▁the ▁time , ▁the ▁supplies ▁to ▁be ▁sh ipped ▁by ▁the ▁imperial ▁government ' s ▁director ▁of ▁fin ances ▁were ▁not ▁arriv ing , ▁and ▁T ian ▁ordered ▁that ▁reven ues ▁be ▁di vert ed ▁from ▁the ▁six ▁We ib o ▁pre fect ures ▁for ▁military ▁use ▁— ▁causing ▁the ▁officers ▁to ▁res ent ▁him ▁for ▁stri pping ▁the ▁six ▁pre fect ures ▁of ▁their ▁wealth . ▁ ▁The ▁am bit ious ▁officer ▁Sh i ▁X ian ch eng ▁thus ▁used ▁this ▁opportunity ▁to ▁fost er ▁diss ent ▁in ▁the ▁We ib o ▁ranks . ▁ ▁In ▁spring ▁ 8 2 2 , ▁when ▁there ▁was ▁an ▁imperial ▁order ▁for ▁some ▁We ib o ▁soldiers ▁to ▁report ▁to ▁the ▁camp ▁of ▁Li ▁Gu ang yan ▁the ▁military ▁governor ▁of ▁Zh ong w u ▁Circ uit ▁( 忠 武 , ▁head qu arter ed ▁in ▁modern ▁X uch ang , ▁Hen an ) ▁to ▁attack ▁Ch eng de ▁from ▁the