When it comes to Cao Wushang's informers, we have to mention the story of the "Hongmen Banquet" which is well known to women and children. During the peasant uprising at the end of Qin Dynasty, Chu Huaiwang reached an agreement with various governors that whoever entered Xianyang, Qin Dou first would be recognized as king. After the Battle of Julu, Xiang Yu's army basically occupied the dominant position of all the insurgents. However, when attacking Xianyang City, Liu Bang cleverly delayed and trapped Xiang Yu's army. He made a detour into Xianyang city first, and Xiang Yu was very angry when he knew it.
Fan Zeng, Xiang Yu's adoptive father, suggested giving a banquet at the Hongmen, inviting Liu Bang to dinner and finding an excuse to kill him. The news reached Liu Jun unexpectedly. Cao knew that Xiang Yu was angry and was ready to clean up Liu Bang, so have it both ways quickly tipped off Xiang Yu and said that Liu Bang wanted to be king in Guanzhong. To put it bluntly, I just want to take credit. This also gave Xiang Yu a good excuse to set up the Hongmen banquet.
Liu bang certainly knew Xiang Yu's intention after receiving the invitation, but he was afraid of Xiang Yu's strength and didn't dare to go to the party. Liu bang was born in the city, treacherous and vicious. Seeing Xiang Yu at the Hongmen banquet, he admitted that his eldest brother had wronged him. I accidentally stepped into Xianyang first, but I never dared to be king. This position must be reserved for Wang Xiang, who is very modest. Arrogant Xiang Yu soon relented, and soon put the blame on Liu Bang's men, saying that you were Cao Sima. Of course, I didn't mean to. Next to Fan Zeng, he was very angry and arranged for Xiang Zhuang to go in and assassinate Pei Gong. Only to be screwed up by Liu Bang's strategist Sean who arranged for Fan Kuai to come in. Finally, I gave Liu Bang a chance to slip away.
Therefore, it is true that personality determines success or failure. It is estimated that if the overlord of Chu relents and releases Liu Bang, he will regret it all his life!