Yu Ban was a famous general during the Three Kingdoms period, although he was a general of Cao Wei, and Cao Cao also attached great importance to him, but later he surrendered to the Shu state and the State of Wu successively, and after Cao Pi declared himself emperor, Sun Quan declared himself a vassal, so he sent Yu Ban back to the State of Wei, but he was ridiculed by others. And Cao Pi actually ordered someone to paint it in the form of forbidden surrender, and after Yu Ban saw it, he died of illness because he felt ashamed of his face.
After the outbreak of the Yellow Turban Rebellion, Yu Ban was recruited by Bao Xin, a fellow villager in Taishan County, to participate in the crusade against the Yellow Turban Army. Bao Xin and Cao Cao were old acquaintances, and later died to save Cao Cao, and Yu Ban was subordinate to the Yanzhou army general Wang Lang, who recommended Yu Ban to Cao Cao.
Yu Ban's ability is also very strong, since following Cao Cao, it can be said that he has fought in the southern conquest and the northern war, and has made a lot of merits. Every time Cao Cao marched, he was either used as a marching forward or as a rearward refusal.
In the twenty-fourth year of Jian'an (219), regarding the siege of Cao Renyu at Fancheng, Cao Cao asked Yu Ban to send troops to rescue him. However, Cao Ren ordered the left general Yu Ban and the Liyi general Pang De to garrison the low-lying areas north of Fancheng, and as a result, the Han river surged and the entire army of Yu Ban and Pound De was destroyed. Pound preferred to die, and as a result, he was killed. But Yu Ban was different, and he directly raised his army and surrendered. This is good, the two are compared, Pound has become a model for Cao Wei to learn, but Yu Ban has become a negative teaching material. In the Three Kingdoms era, when talents were born and the stars were shining, there were countless civilian and military generals who attracted people's attention. Also because of the continuous war, the world is divided into three parts, which will inevitably lead to the surrender of individual military generals from their own camp to the enemy camp.
One of the most representative is the prohibition. As one of the "Five Sons of Liang Generals", in charge of tens of thousands of soldiers and horses in the State of Wei, no one would have thought that Pound De had not surrendered, but instead surrendered. He also became the highest general in the Wei camp who surrendered to other countries.
Cao Cao was also more depressed, after all, the two had been friends for thirty years, how could it be worse than Pound.
However, Guan Yu was later killed, and Yu Ban was rescued from prison and went to the State of Wu. However, Yu Ban was not an ordinary person after all, but a good general of Cao Wei's five sons, and it was not a good idea to stay in the State of Wu like this, and later Sun Quan declared himself a vassal to Cao Pi of the State of Wei, so he sent Yu Ban back.
People are going back, but the scene is very different from before, because of his surrender, so at home was pointed out by the ministers, this time Cao Cao also died, Cao Pi also humiliated him in every way, which made the old general ashamed and embarrassed, after all, people are also old, but also a lifetime of horses, can not withstand such humiliation and accusations, not long after dying.