The next day, Sa Lihe led the Jin army into Raofengguan with great force, set up a headquarters in the General Military Mansion, wrote a memorial to report the victory to the Jin emperor, and sent out scouts to collect intelligence, preparing to continue the attack and expand the results.
But Sa Li's good mood only lasted for two days. On the morning of the third day, the military forger and the military medical officer found him. The military forger reported: "General, we don't have much food." The military medical officer reported: " General, in the battle to attack Raofengguan, our army suffered heavy casualties. Also, most of our officers and soldiers were from the north. They were not accustomed to the climate and climate here, and an epidemic (an infectious disease at that time) broke out in the army." I heard. These two pieces of news wiped out Salihe's good mood. He began to pace anxiously, thinking as he walked: If we retreat, the results of this military operation into Shu will be in vain. If we don't retreat, what will happen to those people? Officers and soldiers who contract the epidemic will not receive good treatment. If they are infected with other soldiers, the entire Jin army will be unable to fight because of the epidemic. Staying on the front line will have no effect. They may also be attacked by the Song army and cause losses. The gain outweighs the gain. .
So Sa Lihe wrote a memorial to the Emperor of Jin: "I, Sa Lihe, tell your Majesty that although our army captured Raofeng Pass the day before yesterday, due to the unsuitable climate and soil, an epidemic broke out in the army, and many officers and soldiers fell ill. I want to lead the army to retreat." , I hope your Majesty will grant you permission.
The Emperor of Jin finally approved Sa Lihe's request. The Song army's scouting horse soon discovered that the Jin army had begun to retreat, and reported the news to Tang Feng. Tang Feng ordered Wu Jie and Qu Duan to lead the Song army to launch a pursuit. Facing the Song army, which was basically composed of locals and did not have to worry about the acclimatization, The Jin army, whose combat effectiveness was reduced due to illness, was quickly defeated. In this battle, the Song army killed thousands of Jin soldiers and recovered Raofengguan, Jinzhou and Shangzhou.
Restore the Song Army's defense line to where it was before the Battle of Raofengguan began. At this time, Tang Feng ordered to stop the pursuit.
After the Battle of Raofengguan, the main generals of the Song Army gathered together for a meeting. Tang Feng said to everyone: "Dear colleagues, although we won the battle of Raofengguan, there is one thing that cannot be ignored. In the previous stage, we only Paying attention to the defense of Monk Yuan and neglecting Raofeng Pass allowed the Jin army to take advantage of the loophole. This kind of thing must not happen again." Then Tang Feng pointed to the map and said: "Look, everyone, Monk Yuan, Raofeng Pass, and Xianren Pass (Today's Huixian County, Gansu Province) can enter Shu, so these three places must be guarded." Everyone agreed, so Tang Feng announced that Wu Lin would be in charge of Monk Yuan, he and Wu Jie would be in charge of Xianren Pass, and Wang Yan would be in charge. Raofengguan, each of the three routes has ten thousand soldiers and horses.
