Guan Yu flooded the Seventh Army and shocked Huaxia, even Cao Cao panicked, and even prepared to move the capital away from Guan Yu, but under the persuasion of Jiang Ji and Sima Yi, Cao Cao finally gave up this idea, and instead united with Sun Quan and plotted to fight against Guan Yu together.

Sun Quan didn't want Guan Yu to become bigger at that time, so he wanted to unite with Cao Cao, eliminate Guan Yu, and take the opportunity to occupy Jingzhou, Sun Quan contacted Cao Cao, hoping that Cao Cao would keep Sun Quan's actions secret, Cao Cao said that he agreed, but in fact he leaked the news to Guan Yu, Cao Ren and others.

【Proposal to move the capital】

After Cao Ren's army was flooded by Guan Yu, Cao Cao sent Xu Huang and other generals to rescue on the one hand, and on the other hand, he suggested moving away from Xu Du to avoid Guan Yu's threat in order to prepare for the worst.

At that time, Jiang Ji and Sima Yi said to Cao Cao: "Yu Ban and the others were submerged by water, not a defeat, and this small loss did not hurt the country. Liu Bei and Sun Quan seem to be very close, but in fact, this is not the case in their hearts, Guan Yu is ambitious, this must not be what Sun Quan wants to see. You can send someone to persuade Sun Quan to sneak attack Guan Yu's rear, and then cede Jiangnan to Sun Quan, and the siege of Fancheng will be relieved. Cao Cao then sent someone to contact Sun Quan.

In history, the reason why Cao Cao had the idea of moving the capital this time was, on the one hand, because Liu Bei's army was strong at that time, Cao Cao himself had just suffered a big loss in Hanzhong and was forced to retreat by Liu Bei, and now Guan Yu is so strong that Cao Cao naturally has the intention of retreating. On the other hand, Xuchang as the capital is really not a good place, Xuchang itself is not suitable as the capital, before Cao Cao moved the capital here, Xuchang in Yuzhou is very general, even in Yingchuan County is not the place of governance, Cao Cao moved the capital here at that time, it can be said that the main reason is that Yanzhou is too close to Yuan Shao, and the capital is moved in a hurry, Xu County picked up a cheap.

However, the timing of moving the capital was not right at that time, although Xuchang was not suitable as the capital, but moving the capital at this time would show weakness to the enemy, which would increase Guan Yu's arrogance and weaken his prestige, so Cao Cao only thought about it for a while and gave up this proposal.

【Cao-Sun United】

In October of the twenty-fourth year of Jian'an (219), Cao Cao led a large army back to Luoyang, and at the same time, Sun Quan sent a messenger to deliver a letter, saying that he would send troops to recruit Guan Yu to show his loyalty.

At that time, Sun Quan sent an envoy to tell Cao Cao: "I want to send troops to the west to attack and seize Guan Yu's territory, Jiangling and Gong'an counties are very important, Guan Yu lost these two cities, he will definitely run away, and the siege of Fancheng will be lifted by itself although he will not directly save it." Please keep this plan secret, and don't leak it so that Guan Yu can be prepared. ”

Cao Cao asked the ministers what to do with Sun Quan's request, and they all said that it should be kept secret. Dong Zhao said: "Military affairs pay attention to contingencies, and require them to be timely. On the surface, Sun Quan should be promised to keep it a secret, but in fact he should leak it. Guan Yu heard that Sun Quan sent troops to the west, if he retreated to protect himself, the siege of Fancheng would be lifted quickly, and it would be very convenient for us to obtain benefits, and we could also make Sun Quan and Guan Yu, two thief armies, confront each other like two horses, and we would sit and wait for their fatigue. If we keep it secret and don't let it be leaked, and let Sun Quan's plan come true, that is not the best policy. In addition, if the generals in the besieging city do not know that there are rescue soldiers outside, and the thought of food is getting scarcer, they will be afraid, and if they have other ideas, the danger will not be small, so it is beneficial for us to show this news. And Guan Yu is strong and violent, and he relies on Jiangling and the two cities of public security to defend strongly, and he will definitely not withdraw immediately. ”

Cao Cao said, "Very good. So he ordered Xu Huang, the general who went to rescue Cao Ren, to shoot Sun Quan's letter into the besieged city and Guan Yu's military camp, and the people in the besieging city knew the news and their fighting spirit doubled. And Guan Yu really hesitated.

In history, Cao Cao's Xun You, Guo Jia, Liu Ye and other strategists are well-known, but Dong Zhao is often ignored by people, but in fact, Dong Zhao, as one of Cao Cao's right-hand men in moving the capital to Xuchang, his ability is not below other strategists, and Dong Zhao's evaluation of this matter at that time was very to the point.

Later generations commented that Dong Zhao's proposal at that time would make Cao Cao lose his prestige, thinking that Cao Cao should not do this, he should closely unite with Sun Quan, eliminate Guan Yu first, send troops together to crusade against Yizhou, eliminate Liu Bei, and finally turn around and kill Sun Quan. However, this view is actually very stupid, first of all, Sun Quan is not stupid, how could he help Cao Cao seize Yizhou, after seizing Jingzhou, although the relationship between Sun and Liu will break down 100%, it does not mean that Sun Quan will sit back and watch Cao Cao eliminate Liu Bei.

And between countries, in the face of interests, benevolence and righteousness itself must stand behind, Sun Quan asked Cao Cao to keep it secret, it was out of the consideration of maximizing his own interests, not for Cao Cao at all, Cao Cao did not need to consider it from Sun Quan's point of view, as the boss of Cao Wei, Cao Wei's interests are the first for Cao Cao, as for Sun Quan's thoughts, it is impossible for Sun Quan to really surrender anyway, and after he offended Liu Bei, he didn't dare to offend Cao Cao again, Cao Cao didn't care what he thought?

And Dong Zhao's opinion can maximize Cao Wei's interests, which is enough.

【Go south in person】

At first, Cao Cao sent Xu Huang to rescue Cao Ren, but at first Xu Huang was short of troops and failed to break the siege smoothly. So Cao Cao planned to personally lead the troops to the south to rescue Cao Ren, so he told his ministers his thoughts and asked if this would work. The ministers replied, "If you do not hurry up, you will surely lose the war." ”

Only Huan Jie said: "Your Majesty, do you think Cao Ren and the others can judge the situation and handle the war completely by themselves?" Cao Cao replied, "Yes." Huan Jie asked again: "Is the king afraid that he and Xu Huang will not do their best?" Cao Cao replied, "No." Huan Jie asked again: "Then why did you go there in person?" Cao Cao said: "I'm just worried that there are many enemy soldiers and horses, and I'm afraid that Huang and other forces are not as good as the enemy." ”

Huan Jie said: "The reason why Cao Ren and the others are under siege right now and can desperately defend the city is precisely because they are in a situation that is far away from you. It is often said that in the land of ten thousand deaths, there must be a heart of death. Now that they have the heart of fighting to the death inside, and the strong generals outside to rescue, if the king leads the army to stand still, and calmly shows the strength of our army to the enemy soldiers, where is the need to worry about defeat and go there in person? Cao Cao felt that he had a point, so he led the army to garrison Mopi, but still mobilized a number of generals to support Xu Huang and Cao Ren.

ps: In the future, the novel will be released at 10 o'clock