Although Zhang Xiaoting's troops at the east gate had entered the city and became guards there, his soldiers had been attacking the city the whole day, and their morale had already dropped to the lowest point.

In such a cold winter, they broke into the city at the expense of heavy casualties. They thought it would be smooth all the way to take the city like a breeze. But after entering the city, they found that there were lines of defense one after another.

The ...