The battle between Battle of Red Cliffs and Guandu has one thing in common, that is, Cao Cao is difficult to win for a while, and it is difficult to win for a long time. In the battle of Guandu, the grain and grass were in emergency, and in Battle of Red Cliffs, the epidemic struck. If you put it off for a long time, you will lose, and you must decide as soon as possible.
The battle of Guandu was a great victory, because I believe in Xu You. Now if Huang Gai really comes down, it will be very helpful to his victory, so he would rather believe it is true than false. Huang Gai not only knows the enemy's situation, but also is good at water warfare. If he can really use it for himself, it will be much easier to defeat Sun and Liu Lianjun.
During the Three Kingdoms period, there were countless surrenders, both true and false. On the battlefield, victory often depends on the surrender of the other side. Therefore, Cao Cao could not help but believe that Huang Gai really surrendered because of the example of Xu Youlai surrendering and winning.
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Cao Cao Nan levied Liu Biao to pacify Jingzhou, chased Liu Bei to Chibi, and fought with Sun Liu's allied troops. He retreated to the Wulin in Jiangbei, and Zhou Yu's allied forces were stationed in Jiang Nanan. Huang Gai gave Zhou Yu a plan of fire attack, and then wrote a letter to Cao Cao, saying that although he was influenced by Sun Shi and readmitted him, he was a wise man. On the day of the war, he was willing to play for the front line and Cao Cao.
After seeing this book, Cao Cao didn't fully believe it. He also said to the person who sent it, I'm afraid you have come to surrender falsely. If Huang Gai really comes to surrender, he will definitely get a higher reward than others in the future. But Cao Cao finally believed in Huang Gai's surrender, because he had no choice but to believe.
In the end, Huang Gai rushed to Cao Cao's warship with 10 canoe carrying dry firewood and fish paste, and ignited in the southeast wind. Cao Cao was defeated by the fire. In addition, Cao Cao's army had an epidemic disease and many casualties, so Cao Cao retreated.