iqu ▁to ▁Q in ▁rule . ▁ ▁In ▁ 3 2 7 ▁BC , ▁Q in ▁attacked ▁and ▁seized ▁the ▁city ▁of ▁Y uz hi ▁( <0xE9> <0x83> <0x81> <0xE9> <0x83> <0x85> ), ▁forcing ▁Y iqu ▁to ▁again ▁swe ar ▁fe alty , ▁this ▁time ▁formally ▁as ▁a ▁Q in ▁county . ▁ ▁However , ▁nine ▁years ▁later , ▁in ▁ 3 1 8 ▁BC , ▁the ▁five ▁eastern ▁states ▁of ▁Wei , ▁Han , ▁Z ha o , ▁Yan ▁and ▁Ch u ▁al lied ▁together ▁and ▁attacked ▁H angu ▁Pass , ▁forcing ▁the ▁Q in ▁main ▁force ▁to ▁leave ▁its ▁heart land . ▁ ▁Y iqu ▁took ▁the ▁opportunity ▁and ▁re bel led , ▁and ▁attacked ▁Q in ▁from ▁the ▁rear ▁as ▁part ▁of ▁a ▁collaboration ▁with ▁the ▁five - state ▁al liance , ▁defe ating ▁an ▁und erm anned ▁Q in ▁g arrison ▁at ▁Lib o ▁( 李 <0xE5> <0xB8> <0x9B> ). ▁ ▁However , ▁the ▁al lied ▁five ▁states ▁were ▁soon ▁rout ed ▁by ▁a ▁Q in ▁counter - off ensive ▁led ▁by ▁Ch ul izi ▁( <0xE6> <0xA8> <0x97> 里 子 , ▁King ▁H ui wen ' s ▁brother ), ▁suffering ▁a ▁loss ▁of ▁ 8 2 , 0 0 0 ▁men . ▁ ▁The ▁vict orious ▁Q in ▁army ▁then ▁returned ▁and ▁ret ali ated ▁against ▁Y iqu ▁in ▁ 3 1 4 ▁BC ▁by ▁inv ading ▁from ▁three ▁different ▁directions , ▁capt uring ▁ 2 5 ▁cities ▁and ▁greatly ▁weak ening ▁Y iqu . ▁ ▁In ▁