Perhaps this battle was planned from the moment Yunzhou was returned by Wei Country six months ago.
Duoji's death forced the Chanyu to deploy troops.
Even if he didn't want to, his subordinates could not bear such humiliation; not everyone agreed with the old Chanyu's plan of lying low and biding their time.
Most of the Qiangrong people had no idea what "lying low and biding time" meant.
They thought that Marquis Gu and the Gu Family Iron Cavalry were in Yunzhou.
Now... a full fifty thousand of the Gu Family Iron Cavalry seemed like a black torrent across the snowfield, capable of sweeping away all obstacles.
They had been rushing across the snowfield day and night for three days and nights until Geng Gong looked up and saw a low gray wall in the distance.
Those walls were indeed very low, without even a city gate; to Geng Gong, it seemed as though he could leap over them on horseback.
