C1497

Huan Army's human sea tactics did not work in the Xixiao Pass.

First, the Xixiao Pass had a steep terrain, and it was located in the middle of a valley. Both sides were precipitous cliffs, and when the Huan Army attacked the city, it could only attack one wall, unable to surround and attack on all four sides. Furthermore, the Pingyuan Army s that were used for defense had become extremely stable