They lost enough strong men, at least without support, how could the Southeast Fortress and Wan Shouguan resist the attack of his two armies?
It could even be said that Samigina did not make a mistake. Although he was selfish in terms of military tactics, as long as the attack advanced into the Southeast Fortress, then all the problems would be solved.
Whether it was the God of Devils or the Devil Gods, their biggest mistake was to estimate human beings according to the original strength completely. But they ignored the true meaning of human beings. And they also didn't know of the emergence of Eternal Heroes. In a sense, this could not be regarded as anything wrong, after all, who could predict this situation? But because of this, it completely changed the situation of the war. The absolute advantage of the Devil's clan began to go downhill gradually.