Military power is king!

He probably understood what Rupin meant.
My father asked me to come to Shuobei just to take advantage of Dirk's hatred for him and attract Dirk to attack Shuofang where he was during the cold winter, so as to consume the power of Beihuan.
Fighting in winter will cause huge losses to Beihuan!
They can hold their ground and continue to consume Bei Huan's strength.
In this way, when Daqian launches military operations against Beihuan in the early spring of next year, its chances of winning...