The absence of Cao Cao's great cause was destroyed by these four men. His last confession killed two people by mistake and released two people by mistake.

Cao Cao killed countless people in his life. As a successful politician, he must pay the price of thousands of skeletons. It's perfect to apply fame and backbone to Cao Cao. When Cao Cao was a teenager, he was just a dude who only knew caged birds, cockfighting and walking dogs all day. No one thought that he was such a bad boy who did nothing every day and eventually became a lean man in troubled times. Cao Cao is most proud of being young. Later, Cao Cao really became a hero who influenced future generations for thousands of years. Cao Cao was suspicious by nature, so he was rarely counted in his military career. But this is also the biggest defect of Cao Cao. It is because of his personality defects that he destroyed the Great Wall and made many powerful enemies for himself.

One more thing, I think the most important shortcoming that led to Cao Cao's final failure was his complacency. Because of modesty, Cao Cao won the battle of Guandu. Cao Cao ignored Sun Quan and Liu Bei because of his complacency, which led to the defeat of Chibi and the great opportunity to unify China. In his letter to Sun Quan, Cao Cao said: "The relatives pleaded guilty, and the relatives were charged with crimes. Liu Cong was helpless." Today, there are 800,000 water conservancy soldiers, and Fang and the general will hunt in Wu. "Very arrogant, perhaps to deter opponents, but it also exposed the pride of Cao Cao. Huang Gai's fake surrender is not without flaws. If he keeps his eyes open, Huang Gai won't succeed. Because of his pride, Cao Cao would do such heinous things, such as forcing his aunt Zhang Xiu after Zhang Xiu surrendered, and he would be caught off guard. As a result, he almost lost his life and his beloved son. Liu Zhang befriended Cao Cao and sent Zhang Song to see Cao Cao. Zhang Song was originally a spy, but Cao Cao's arrogant attitude towards Zhang Song led to Zhang's antipathy. He advised Liu Zhang to break off relations with Cao Cao and turn to Liu Bei's arms, so that Cao Cao could miss Yizhou. This is the biggest shortcoming that led to Cao Cao's final failure.

Anyone who has read The Romance of the Three Kingdoms will surely see that Cao Cao's biggest mistake in his life was to kill two wrong people and put them in the wrong place, which eventually led him to lose the chance of reunification. Cao Cao's great cause was ruined by these four men, and he repented before he died. So Cao Cao killed two people by mistake and released two people by mistake. who is it?

First of all, let's talk about the two people killed by Cao Cao. One is the imperial doctor Hua Tuo, and the other is Yang Xiu.

Hua tuo's medical skill is brilliant. Why was he killed by Cao Cao? According to the Romance of the Three Kingdoms, Cao Cao suffered from head wind disease. It became more and more serious after middle age, so I went to Hua Tuo for treatment. But after the diagnosis, Hua Tuo said that craniotomy was needed. Cao Cao thought Hua Tuo was hurting him, so he killed Hua Tuo. But in the official history, the reason why Hua Tuo was killed,

Therefore, after Hua Tuo's death, Cao Cao's headache still occurred from time to time, but he never regretted it and said, "Tuo can get better." I want to recuperate, but if I don't kill this son, I won't break this original ear for me in the end. "This sentence hit the nail on the head, revealed the voice of Hua Tuo, revealed the reason why Hua Tuo was killed. Unfortunately, Hua Tuo's generation of imperial doctors, with first-class medical skills, wanted to play politics with a generation of heroes Cao Cao, which was too disdainful.

The only time Cao Cao regretted killing Hua Tuo was when his beloved son Cang Shu was seriously ill. He once said, "I regret killing Hua Tuo and letting this son die." His love for this son is obvious. No wonder xelloss later said that if Cang Shu were here, I'm afraid whether he can be a prince is a problem.

The second person killed by Cao Cao was Yang Xiu.

Yang Xiu is a talented person, but he often shows off his cleverness. Cao Cao didn't argue with him. But Cao Cao was later angered by Yang Xiu's recklessness, so he killed him. At that time, Cao Cao sent troops to attack Liu Bei in Hanzhong, and he was trapped at the border of the ancient street. He wanted to join the army, but Ma Chao refused. He wanted to quit the DPRK, but he was afraid of being laughed at by the Shu soldiers. He hesitated in his heart. At dinner in the evening, he met the chef who was eating chicken soup. Seeing the chicken ribs in Cao Cao's bowl, he casually said: chicken ribs, chicken ribs, but Yang Xiu heard the result. When Yang Xiu came back, he called on friends and friends to pack their bags and prepare to retreat. Cao Cao was stunned. When he knew it was Yang Xiu's idea, he flew into a rage, so he killed Yang Xiu. Later, Cao Cao was defeated and had to withdraw. Cao Cao regretted killing Yang Xiu, but it was too late.

After many twists and turns, Yang Xiu helped Cao Zhi pass the test of Cao Cao. However, Cao Zhi became more and more arrogant. Yang Xiu wants to alienate him, but he can't and dare not. Cao Cao was also very angry because he knew that Cao Zhi had passed the test with the help of Yang Xiu. Later, he wrote to Yang Biao and mentioned, "If you are a clever son, you will be proud of your father. Every time you don't conceive me, you walk in a straight line and you hate it. " Finally, in the autumn of the twenty-fourth year of Jian 'an, all criminals were executed by Cao Cao for "teaching before and after, being friends with princes". Yang Xiu sighed: "I will die."

Yang Xiu's cause of death is unknown, but his cause of death is complicated, mainly due to two political factors.

First of all, Yang Xiu violated the taboo in the ancient struggle for kingship and participated in the struggle for independence.

Second, the identities and political opinions of Yang Biao and Yang Xiu conflict with the interests of Cao Wei regime. Mrs Yang Biao is Yuan Shu's daughter, and Yang Xiu is Yuan Shu's grandson. However, Yang Biao and Yang Xiu have the same political views as Kong Rong and Mi Fei, so they are taboo.

After Yang Xiu was killed, one day, Cao Cao met Yang Biao and asked, "Why is Yang Gong so thin?" Yang Biao replied, "I am ashamed of my foresight, but I still cherish the love of an old cow and calf." I'm ashamed that I don't have a golden eye, but I still have a heart that loves my son. Cao Cao is a little embarrassed.

Cao Cao misplaced two people, Guan Yu and Zhao Zilong. Guan Yu and Zhao Zilong are both generals under Liu Bei, and they both have strong values of force. They are listed as generals of the Five Tigers of Shu Han. When Liu Bei was defeated, Guan Yu had to surrender to Cao Cao to protect his sister-in-law. Therefore, Cao Cao respected Guan Yu very much, not only gave him a red hare, but also made Guan Yu a court official of Hanshou Pavilion. Cao Cao wanted to surrender Guan Yu, but Guan Yu was always loyal to Liu Bei. Guan Yu beheaded Yan Liang and Wen Chou for Cao Cao, but after learning that Liu Bei was at Yuan Shao's place, he got on the Red Rabbit Horse, went through five customs and killed six generals, and finally met Liu Bei. Cao Cao didn't move Guan Yu, but after learning that Guan Yu had left without saying goodbye, he let him go. Although Guan Yu was very moved, he left a disaster for the future.

According to the Records of the Three Kingdoms, it is a historical fact that Guan Yu was captured by Cao Cao in Xiapi. After Cao Cao captured Guan Yu, he worshipped him as a partial general and treated him well. In the war with Yuan Shao, Guan Yu did behead Yan Liang for Cao Cao's battle to solve the siege of the White Horse, so he was named Hou Ting of Hanshou. Knowing that Guan Yu would leave after making meritorious deeds, Cao Cao said to his courtiers, "Everyone has his own interests. Don't chase him. "

As for the bridge between Guan Yu and Cao on Huarong Road, there is no mention in the History of the Three Kingdoms. Only the biography of Yang Shan's son said, "The public ship is ready for fire, and the troops are led back from Huarong Road. When the mud is muddy, the road is impassable and the sky is windy, I know it is impossible to ride. " According to its description, Cao Cao took Huarong Road, which was muddy and windy. Cao Cao asked the thin soldiers to carry grain and grass to fill it, so that the cavalry could pass. After crossing Huarong Road, Cao Cao also told his men that if Liu Bei had set fire earlier, he would have escaped by luck. Liu Beifang wanted to set fire, but he couldn't. There is no mention of Guan Yu's role in it. The story of catching and releasing Cao seems to be an artistic exaggeration of the Romance of the Three Kingdoms. The author wants to mold Guan Yu into a better figure.

To sum up, in the official history, Cao Cao didn't kill Guan Yu, but Guan Yu beheaded Yan Liang and paid him back, so we are even. Cao Cao was grateful to Guan Yu, but Guan Yu was ungrateful. The Huarong Road incident is pure fiction, and it is an artistic process created by the author of the novel with all his loyalty.

Zhao Zilong is better than others. Guan Yu is the one who broke through every level. Zhao Zilong snatched Adou from millions of Cao troops. What a hero! Of course, Zhao Yun is brave, and the battle of Changbanpo has made great contributions, but it is also the compassion of Cao Cao that makes Zhao Yun toss and turn for so long. Otherwise, the arrow would have been shot out, and Zhao Yun would have been shot into a sieve. At that time, someone tried to shoot Zhao Yun, but Cao Cao liked him more and more and refused to shoot him. As a result, Zhao Yun hacked two swords, killed many generals of Jun, and finally broke through the encirclement and successfully rescued Liu Chan. Later, Zhao Yun became a very powerful figure in the Shu-Han Empire. Not only did he make meritorious deeds in the early stage, but he also made meritorious deeds in the late Northern Expedition, which made Cao Wei have a headache. If Cao Cao knew what Zhao Yun did later, I'm afraid he would be shot further away!

In the 23rd year of Jian 'an, Liu Beijun handled the relationship with Wu Quan well, and after repelling Zhang He who invaded Brazil many times, he began to compete for Hanzhong. In July of the same year, Cao Cao began to unify his troops and prepare to support Hanzhong in attacking Liu Bei. In September, the army entered Chang 'an. In this campaign, Zhao Yun defeated Cao Jun in the unfavorable situation of his own army, which caused a lot of casualties to Jun, and also made Liu Beijun in the battle of Hanzhong change from passive to active, and began to challenge Jun. However, he couldn't wait, which led to a big defeat for more than half a year in just two months after arriving in Hanzhong. Later, some historical books recorded the battle of Hanzhong, directly recording that Cao Cao fought for Hanzhong in February19 and was defeated by Zhao Yun.

Zhao Yun has been with Liu Bei for nearly 30 years. He has participated in the battles of Bowangpo, Changbanpo and Pingding in the south of the Yangtze River. He commanded Sichuan Campaign, Hanshui Campaign and Ji Gu Campaign alone, and achieved good results. In addition to fighting everywhere, Zhao Yun also served as the prefect of Guiyang as a partial general, stayed in the camp with Sima, and supervised Jiangzhou as a rebel general. In addition, when Zhao Yun pacified Yizhou, he told the story that Huo Qubing advised Liu Bei to return the land to the people. After Guan Yu and Zhang Fei were killed, he advised Liu Bei not to attack Wu. He was praised by later generations as a Confucian general with many ministers and bureaus, and even considered a perfect man in the Three Kingdoms period.

Zhao Yun was called "Shunping Hou" after his death, and his image of "ever-victorious general" was widely circulated.