When Cheng Wu left Luoyang, he received a secret order from Cao Rong to try his best to mediate between Xiahou Mao and Chen Sheng, and act as a peacemaker to ensure the unity and coordination within Cao Wei's army. (c) During this period of time, Cheng Wu could clearly feel that Chen Sheng was indeed committed to the country, while Xiahou Mao was purely coercing the public for personal gain, and the superiority and inferiority between the two were like mirrors in Cheng Wu's heart. It's just that Xiahou Mao is the commander of the three armies after all, even if he is not, Cheng Wu and Chen Sheng, as subordinates, cannot argue with him too much, otherwise it will have a very serious adverse impact on the command of the whole army.

At this moment, Xiahou Mao insisted on fighting, although Cheng Wu also disagreed with Chen Sheng very much in his heart, but seeing that all the generals in the account were shouting, he had to make some concessions. After all, whether to go out of the city to fight a decisive battle with the Shu army should be decided by Xiahou Mao as the commander, and Xiahou Mao's decision to go to war is logically speaking, it can be regarded as a national general to defend against the enemy, and before the result comes out, no one has the right to accuse him of competing with Chen Sheng. If Chen Sheng continued to argue, he would really be suspected of "fearing the enemy and confusing the army's heart", so Cheng Wu privately prevented Chen Sheng from arguing more fiercely in the next step.

This small action also looked in Xiahou Mao's eyes, which made him even more convinced that Cheng Wu was standing next to Chen Sheng, so he sneered: "Do you two have anything to say?" Cheng Wu rushed ahead of Chen Sheng and said, "Since the Metropolitan Governor insists on going to war, General Chen is the vanguard general appointed by His Majesty, and he should be the front." Xiahou Mao didn't expect Cheng Wu's attitude to suddenly change so much, and he didn't know whether he should agree.

Chen Sheng suddenly understood Cheng Wu's intentions, since it was inevitable to fight, then his own battle and Han De's war were fundamentally different things, even if he couldn't win, or he could reduce some losses for Cao Wei, so he also stepped forward and hugged his fists and said: "The last general is willing to fight for the front and on behalf of General Han, it's good-looking:." Xiahou Mao was still hesitating in his heart, but Chen Sheng took the initiative to ask for battle, but he strengthened his mind. Anyway, it's still that sentence, no matter how correct what Chen Sheng said, Xiahou Mao would not agree, so he smiled and said: "Use a knife to kill chickens? Just Guan Xing, why do you drive General Chen? Without waiting for the two of them to speak again, they turned to Han De and said: "It all depends on General Han's strength." Han De had been waiting for this sentence for a long time, and after hearing it, he hurried out of the tent, wanting to avenge the death of his fourth son.

Watching Han De's stride away, Chen Sheng and Cheng Wu looked at each other, and they both had a strong premonition, feeling that the Wei army would wait for another defeat. Chen Sheng also seemed to understand at this time that for Xiahou Mao, there was no reason to talk about it at all, he was angry in his heart, and in front of everyone in the tent, he didn't care about Xiahou Mao's face as the commander, snorted heavily, and left the Chinese army tent after Han De. Cheng Wu saw him brushing his sleeves away, and looked at Xiahou Mao's angry face, he felt bad in his heart, and hurriedly confessed to Xiahou Mao, and hurriedly chased out of the tent.

Chen Shenglong walked in a tiger step, coupled with the anger in his heart, and the account was a hurry. Cheng Wu only came out a moment late, and then he was far behind, shouting loudly, running to catch up, and finally chased after Chen Sheng, pulled him back, and said, "The general must not be rash." Hearing Cheng Wu's persuasion, Chen Sheng knew that he had seen through his mind, and couldn't help but sigh: "Han De is an incompetent person, and he lost nearly 10,000 soldiers of our army in the battle, so how can he rest assured that he will fight again?" Cheng Wu was not so worried in his heart, but even so, Chen Sheng could not go to war without a general's order, this was a big crime against the military order, not to mention that Xiahou Mao had a gap with him, even if he was replaced by someone else, he would be punished. So he persuaded again: "Without the general order of the Xiahou Dudu, how can the general replace Han De in the battle?" Even if you disobey the military order in this way, it is a capital crime, and the general has to think twice. ”

Chen Sheng grabbed the military tent because he wanted to take his own military horses into battle before Han De ordered troops out of the city. Chen Sheng's subordinates are the Wei army garrisoned in Luoyang, although the number is not very large, but it is much more elite than the rabble brought by Han De, and there is about a few chances of winning in the battle with the Shu army. Now that the Wei army lost the first battle, the morale of the army cannot tolerate another defeat, so even if he disobeys the military order, Chen Sheng is willing to take the risk of attacking. In the face of Cheng Wu's kind dissuasion, Chen Sheng could only shake his head slightly, the counties of Longyou are the gateway to Chang'an, once something goes wrong, the Shu army can directly force Chang'an, and if Sima Yi of Wancheng knows that Shu Han won here, and he can't withstand Cao Zhen's powerful offensive, then it will be a matter of time before he takes refuge in Shu Han. In this way, Luoyang was under the attack of Shu and Han, which was very dangerous for Cao Wei's entire Jiangshan Sheji, so Chen Sheng could not tolerate the defeat of this battle, and he had to personally lead his troops to rest assured.

Seeing that his dissuasion was ineffective, Cheng Wu suddenly felt that the emperor's decision to arrange these two people as the main general and vanguard seemed to be a very wrong decision, could it really be that the will of heaven did not bless Great Wei? Xiahou Mao will repay his eyes, not caring about the country; And although Chen Sheng is for the country, he can't bear the slightest resentment, how can such a general work together? Even if Cheng Wu tries his best every day, it will be useless after all. Since Chen Sheng was determined to fight, Cheng Wu had no ability to stop him, so he had to say: "General Han is ordered to fight, how can the general replace him privately?" It is better to put it in front, and the general will answer later, so that Yu Xiahou will have some explanations in front of the governor. ”

Such a compromise is really good, it can not only ensure that Han De can be accepted at any time, but also not offend Xiahou Mao very much, Chen Sheng thought about it a little, and agreed. However, Cheng Wu knew very well that even if he went out of the city after Han De, he did not get the general's order, which was considered a violation of military law, and it was probably a sin to look back and investigate. Chen Sheng and Xiahou Mao have old grievances, but Cheng Wu and Xiahou Mao have no grievances in the past, it is better to go, and when Xiahou Mao blames, Cheng Wu can also share some responsibilities, so as not to have greater contradictions between the two. Therefore, Cheng Wu also made up his mind to follow Chen Shengtong to fight. Chen Sheng was quite grateful for Cheng Wu's help during this time, as long as it did not affect the battle situation, there was nothing wrong with bringing more others, so he agreed without objection. So the two of them did not invite Xiahou Mao to order, and went straight to Chen Sheng's camp, and followed Xu Yi out of the city behind Han De with his troops and horses.

At that time, the Shu Han army had already opened and came straight to Tianshui, and Guan Xing was the front, and he had defeated Han De, so Chen Sheng was very worried about the situation of the Wei army in front and had the heart to follow closely. But Cheng Wu felt that after all, Han De was ordered by Xiahou Mao, and he was a general in Liangzhou, if he was too aggressive, he would inevitably give people the suspicion of stealing merit, and then offend the other party. It is better to take the horse in front, and the horse is more backward, so that even if there is merit, it will all belong to Han De, and the relationship between them will not deteriorate. Chen Sheng knew that Cheng Wu was cautious and didn't want to offend others more, so he agreed to let the troops lag behind Han De more than ten miles, but he was always a little uneasy in his heart.

Sure enough, there was no good news from Tanma, and Han De was beheaded by Guan Xing when he was only together, and the Wei army in front was defeated. When Chen Sheng heard the news, he was really anxious, so he had to raise troops to quickly go to meet him. Cheng Wu stopped him again, and said indifferently: "Han De's defeat is his own death, why should the general bother to lose his soldiers?" Chen Sheng couldn't help but be a little surprised when he heard that his tone was not as good as before, and asked, "What do you mean by this?" Cheng Wu smiled slightly and said, "Han De is just bait, the general only needs to sprinkle here, and he won't worry about catching big fish." ”