Zhang Lu asked who he was? He replied: "That's Nan'an Pang De. When Ma Chao defected to the lord, Pang De came here with him. Later, Ma Chao went to Xichuan, but Pang De didn't go because he was ill. Now that I'm grateful for the lord's kindness, why not send him to fight?" Zhang Lu was very happy after hearing this, so he summoned Pang De and rewarded him. Then he sent 10,000 troops and horses under Pang De's command to fight Cao's army more than ten miles away from the city. Pang De took action.
When Cao Cao and Ma Chao fought before, he knew that Pang De was very brave, so he told the generals: "Pang De is a fierce general in Xiliang. He originally belonged to Ma Chao. Now he has taken refuge with Zhang Lu. He must not have completely returned to his side. I If you are going to get this person, you must all fight him in a duel and make him weak, then capture him in one fell swoop."
Zhang He came out to fight first and left after a few rounds. Xia Houyuan appeared and continued and left for a few more rounds. Xu Huang fought for a few more rounds and retreated at the same time. Then Xu Chu fought for fifty rounds and left. Pang Germany fought against four different generals without any intention of retreating.
Everyone praised Pang De for his superior martial arts in front of Cao Cao. Cao Cao was very happy after hearing this and discussed with everyone, saying, "How can we make this man surrender?"
Jia Xu thought about how Yu Yi was guarding Jingzhou, and every point he could delay was a point. In his eyes, Yu Yi's safety was the most important thing. Even if Cao Cao captured Hanzhong, it would be difficult to attack Xichuan. He wanted Cao Cao to be in Hanzhong spent some more time and suggested: "I know that there is a person under Zhang Lu who is very greedy for money, named Yang Song. He can send people to secretly use money to give gifts to break the relationship between Pang De and Zhang Lu, and then he can plot ”
Cao Cao asked: "For what reason did you enter Nanzheng?"
He replied: "When we fight in the future, pretend failure, abandon the camp and leave, let Pound occupy our camp, and then we will sneak attack the camp at night. Pound will definitely retreat into the city, and then choose an eloquent soldier. Pretend to be their soldiers, blend in with them, and then you can enter the city."
Cao Cao followed this suggestion, chose a fine military academy, gave him rewards, and gave him good instructions. He then gave him a pair of golden heart-covering armor and asked him to wear it close to his body. He also put on the clothes of a Hanzhong soldier outside and waited halfway up the road. .
On the next day, two teams, Xia Houyuan and Zhang He, were first sent to ambush and let Xu Huang challenge them. Within a few rounds, they were defeated and left. Pang De led his troops to cover them up. Cao Jun retreated, and Pang De captured When I arrived at Cao Cao's camp, I was very happy to see that there was a lot of food and grass in the camp. I immediately reported it to Zhang Lu and set up a banquet in the camp to celebrate.
During the second watch that night, suddenly three lines of fire broke out. Xu Huang, Xu Chu in the center, Zhang He on the left, and Xia Houyuan on the right. Three lines of troops and horses rushed into the camp together. Pang De was caught off guard and could only mount his horse and rush out. He retreated towards the city, behind him. Three armies came to attack, and Pang De could only ask the defenders to open the door and swarm in with his soldiers and horses.
At this time, Xi Zuo had already sneaked into the city and went to pay homage to Yang Song. When he met Yang Song, he said: "Wei Gong, Prime Minister Cao, has heard about your reputation for a long time, so he sent me specially to bring you some money and a secret letter." Submit the letter."
Yang Song was very happy. After reading the secret letter, he replied to Xi Zuo: "Tell Wei Gong, don't worry, I will definitely have a good way to reply." So he asked Xi Zuo to leave first and went to see Zhang Lu that night. It is said that Pang De took bribes from Cao Cao and his failure was intentional.
Zhang Lu was very angry after hearing this. He called Pang De and scolded him once, and prepared to behead him directly.
Yan Pu begged for mercy, and Zhang Lu said: "If you fight again tomorrow, if you don't win, I will kill you!" Pang De was naturally unconvinced in his heart, and did not show it, so he left like this.
On the second day, Cao Cao attacked with his troops and horses, and Pang De rushed out with his troops and horses. Cao Cao sent Xu Chu to fight. Xu Chu pretended to fail, and Pang De rushed over. Cao Cao rode on the hillside and called Pang De, saying: "Why didn't you surrender earlier?"
Pang De thought, catching Cao Cao would be equivalent to catching a thousand generals! So he chased in the direction of Cao Cao.
With a cry, the sky collapsed and the earth collapsed. Pound and his troops fell into the pit together with their men and horses. The surrounding nets came forward and captured Pound alive and pushed him up the hillside.
Cao Cao personally dismounted, told the soldiers to retreat, personally untied the rope from Pang De's body, and asked Pang De if he was willing to surrender. Pang De thought that Zhang Lu was unkind, so he agreed to surrender.
Cao Cao personally helped him onto his horse and returned to the camp together, deliberately letting the people in the city see this scene. Someone reported to Zhang Lu that Cao Cao and Pang De were riding horses together. Zhang Lu believed Yang Song's words even more.
On the second day, Cao Cao erected cloud ladders on three sides to attack the city and attacked with flying cannons. Zhang Lu saw that the situation was very critical, so he discussed it with his younger brother Zhang Wei. Zhang Weidao said: "You can set fire to burn all the food in the warehouse, and then escape to Nanshan to guard Bazhong."
Yang Song said: "Why don't we open the door and surrender."
Zhang Lu didn't know who to listen to and was very hesitant. Zhang Wei said: "Just burn it."
Zhang Lu said: "I was originally planning to surrender to the country, but I did not meet the requirements. Now I have no choice but to flee. The warehouse grains are the property of the country and cannot be burned like this." So he ordered them all to be sealed off. At ten o'clock that night, Zhang Lu took The whole family opened the south door and went out.
Cao Cao told the soldiers not to pursue him, and personally led his troops into Nanzheng. Seeing Zhang Lu sealing all the warehouses, he felt a little sorry for him, so he sent people to Bazhong to persuade Zhang Lu to surrender. Zhang Lu also thought it was good to surrender, but Zhang Wei refused to agree.
Yang Song secretly wrote a secret letter to Cao Cao, asking him to march, and he would act as an internal agent.
After Cao Cao got the letter, he personally led his troops to Bazhong. Zhang Lu sent his younger brother Zhang Wei to fight and fought with Xu Chu. He was directly killed by his horse. The defeated army went back and reported to Zhang Lu, who was ready to hold on.
Yang Song said: "If you don't go out, you will just sit and wait for death! I will defend the city, and the lord can fight them to the death in person."
Zhang Lu listened to this opinion. Yan Pu advised Zhang Lu not to go out, but Zhang Lu refused to listen. He led his troops and horses out to fight. Before the battle, a group of troops came from behind. Zhang Lu quickly retreated. Cao Jun came behind Zhang Lu. When they arrived at the city, Yang Song closed the door.
Zhang Lu had no way to go, so Cao Cao chased him from behind and shouted, "Why didn't you surrender earlier?"
Zhang Lu had no choice but to dismount and surrender. Cao Cao was very happy. Thinking of his behavior of sealing the warehouse, he treated him preferentially and made Zhang Lu the general of Zhennan. Yan Pu and others were awarded corresponding official positions, so Hanzhong Everywhere was pacified.
Cao Cao ordered each county to set up prefects and captains, and rewarded the soldiers. Only Yang Song wanted to be honored by his betrayer, and had the soldiers kill him in public in the market.
In this way, the whole of Dongchuan was pacified by Cao Cao. Sima Yi, the chief bookkeeper, said: "Liu Bei used deception to deal with Liu Zhang. The people in Shu have not completely returned to their hearts. Now that the lord has obtained Hanzhong, Yizhou is shaken and can quickly send troops to attack." Xichuan will definitely cause them to collapse. A wise man must use the right time, and the opportunity cannot be missed!"