, ▁there ▁was ▁also ▁an ▁incident ▁when ▁the ▁chief ▁of ▁W ud eng , ▁Ju ▁M eng ch ong ▁( <0xE8> <0x8B> <0xB4> 夢 <0xE6> <0xB2> <0x96> ), ▁res ub m itted ▁to ▁T uf an ▁and ▁was ▁cutting ▁off ▁the ▁communication ▁line ▁between ▁Tang ▁and ▁N anz ha o , ▁and ▁Wei ▁sent ▁an ▁army ▁to ▁kill ▁Ju , ▁re open ing ▁the ▁communication ▁line . ▁ ▁In ▁ 7 9 2 , ▁Wei ▁attacked ▁Wei ▁Pref ect ure ▁( <0xE7> <0xB6> <0xAD> 州 , ▁in ▁modern ▁Ng awa ▁Tib et an ▁and ▁Q i ang ▁Aut onom ous ▁Pref ect ure , ▁S ich uan ) ▁and ▁captured ▁the ▁T uf an ▁general ▁L un ▁Z an re ▁( 論 <0xE8> <0xB4> <0x8A> <0xE7> <0x86> <0xB1> ). ▁ ▁In ▁ 7 9 3 , ▁when ▁Emperor ▁Dez ong ▁ordered ▁the ▁reconst ruction ▁of ▁Yan ▁Pref ect ure ▁( <0xE9> <0xB9> <0xBD> 州 , ▁in ▁modern ▁Y ul in , ▁Sh a an xi ), ▁he ▁was ▁concerned ▁that ▁T uf an ▁forces ▁might ▁attack ▁the ▁Tang ▁forces ▁re building ▁Yan ▁Pref ect ure ▁before ▁the ▁walls ▁can ▁be ▁completed , ▁so ▁he ▁ordered ▁Wei ▁to ▁attack ▁T uf an ▁to ▁dist ract ▁T uf an ▁forces ; ▁Wei ' s ▁attack ▁captured ▁some ▁ 5 0 ▁T uf an ▁fort ifications , ▁and ▁as ▁a ▁reward , ▁Emperor ▁Dez ong ▁gave ▁him ▁the ▁honor ary ▁title ▁of ▁acting ▁You ▁P us he ▁( 右 <0xE5> <0x83> <0x95> <0xE5> <0xB0> <0x84> ).