He advanced to Dangqu , Mengtou , Dangshi and opposed Zhang Fei 's army for approximately 50 days .
Zhang He led several battalions from the main army separately south to Baxi , intending to evacuate and relocate civilians to Hanzhong .
Zhang He advanced to Dangqu , Mengtou , Dangshi and opposed Zhang Fei 's army for approximately 50 days .
Zhang He led several battalions from the main army separately south to Baxi , intending to evacuate and relocate civilians to Hanzhong .