14 years ago, the civil works were not built and the side walls were not built. Therefore, Du Shi defended Mei Zhao's request for more troops. "Du Shi, Ma Ying, Yunzhou, Chicheng, Diao E and other seven fortresses, only guarding our army of seven thousand, serenading the vast territory. I begged the regular troops in my belly to get firearms for training as backup. Yang Hongyan, commander-in-chief of Fu Xuan, prepared five things: "First, Fu Xuan stood guard and other things. There are more than 3500 officers and men 14, and the castle pass14. The most important ones are the Inner Ocean, Ximalin, Zhangjiakou, Xinkaikou Fort and Yehuling Pass Fort. The other six castles, such as Baiyangkou, are really unnecessary, so they beg to be merged into garrison duty. "

Before July 11th, Yang Jun, the son of Yang Hong, the commander-in-chief of the Ming army, fled south under the attack of Allah Zhiyuan. As a result, Chicheng (now Chicheng County), Diaoe (now Diaoe Village in Chicheng South), Longjiangmen (now southwest of Chicheng Longguan), Longmen Station (now east of Chicheng Longmen Station), Huailai (now the bridge bottom of Guanting Reservoir in beijing-baotou railway), Yongning (now), July/kloc. Huailai County is located in the east of Mutubao and on the north bank of Qingshui River (now Guanting Reservoir). It should be the Alazhi Academy Army that entered Huailai to occupy the river south of Mutubao. When the Ming army arrived at the civil fort, it was forced to camp on the spot because it had surrendered. It was because the Aka army intercepted the return of the Ming army that the main force of the Walla army pursued and surrounded the Ming army. Therefore, Ye Sheng and Yu Qian emphasized the serious consequences of the fall of Du Shi and Ma Ying. On August 14, Yingzong wanted to move on, but the Walla army had advanced and dared not move. The soldiers of the Ming dynasty had no water for two days. They were hungry and thirsty. They dug a well two feet deep, and there was still no water. There is a river fifteen miles south of the civil fort, which is also controlled by the Walla army.

Valla troops attacked from the civilian side of Magukou, and Guo Mao refused to fight until the end of the night. Wallachia's reinforcements continue to increase. The Vara army hung the rope between two horses and warned the night attack with hounds.