At that time, Wen Jian aligned itself with Thailand, Huang Zicheng and others, and pursued the policy of reducing vassals. Judy, the prince of Yan, said that it was a disaster for the emperor to listen to the slanderers and alienate his flesh and blood. So, he played the banner of "Fengtian Jingnan" to clean up the traitors around him for the monarch. Therefore, we can regard this war as a battle launched by Judy to pacify the villain and the king.