Let's tell this story. King Xiang of Chu, then a prince, was sent to Qi as a hostage and met his teacher Shen. The teacher taught him a lot, and King Xiang of Chu also respected his teacher. When the King of Qi was taken hostage, Xiang Wang's father died suddenly, and he asked to go back to China to attend his funeral. Qi, on the other hand, needs 500 plots of land to be allowed to return to China. In order to return to Chu as soon as possible, King Xiang of Chu made a false promise to Qi's request. However, when he returned to the State of Chu and became king of Chu Xiang, he broke his word and did not want to cede the land to Qi. So he asked the teacher what to do, and the teacher said that you can ask other ministers for advice in court.
In court, the three ministers gave their own suggestions. One said that since Chu promised to give land to Qi, it must be given, otherwise it would lose its credibility, and no one would want to form an alliance with Chu in the future. The other said that we must never cede the land, otherwise Qi would think that we were afraid of him. Not only can't cut land, but also send troops to attack Qi. The third said that we can't cede the land, but we can ask Qin for help and let Qin come forward to solve this problem. There is something in what these three people said. King Xiang of Chu was very embarrassed, so he went to ask the teacher again. The teacher said that you can combine their suggestions and implement them together.
Therefore, the last way for King Xiang of Chu to solve this problem is to send an envoy to Qi to tell Qi that he is willing to cede the land to Qi. Then immediately sent a small team to send troops to pacify Qi, and at the same time sent a man to Qin for help. Qi thought that Chu had really come to cede territory, but he was still very happy. But as soon as we saw that there were still troops, we immediately sent troops to fight. But I don't want to be blocked by Qin Jun. The envoy of the State of Qin said that it was immoral for the State of Qi to threaten the land and not let King Xiang of Chu return to China to attend the funeral. If Qi insists on this land, then Qin will come forward to help Chu. Qi can't get any benefits, so he has to go back first. King Xiang of Chu, on the other hand, kept his territory at no cost.