What does Jiangdong Cai Jun mean?

Du Mu's Tiwujiang Pavilion in Tang Dynasty

The victory or defeat of a strategist is unexpected, and Bao is a person with shame.

There are many talented children in Jiangdong. Whether they will make a comeback is still unknown.

In the first sentence, victory or defeat is a common occurrence in military strategists. The second sentence criticized Xiang Yu for not being broad-minded enough and lacking general bearing. Imagine three or four sentences, if Xiang Yu returns to Jiangdong and regroups, maybe he can make a comeback. This sentence regrets Xiang Yu's anger, but the main meaning is to criticize him for not being good at grasping opportunities, not being good at listening to other people's suggestions, and not being good at employing people. Sima Qian once criticized Xiang Yu's stubbornness of "killing me by heaven is not a crime of war" from the perspective of historians. Du Mu, on the other hand, talks about success or failure from the perspective of a military strategist. Both of them pay attention to personnel, but Sima Qian summed up his own lessons and emphasized the reasons for his failure. Du Mu is an imaginary opportunity, emphasizing that military strategists should have foresight and indomitable will.

The "Jiang" here refers to the Yangtze River. The Yangtze River flows southwest and northeast between Wuhu and Nanjing. In ancient times, it was the main ferry between north and south. It is customary to call the southern section Jiangdong from now on, which means all the areas under the rule of Sun Quan of the State of Wu during the Three Kingdoms period. What he did also called all the areas ruled by Sun Wu "Jiangdong". In addition, the ancients were geographically left to the east and right to the west, so Jiangdong was also called Jiangzuo. Eight thousand children are the children of Emperor Wu (centered on Taihu Lake), and the core is Wuzhong at that time (although it is now Suzhou, but the historical city of He Lucheng-Wudu) is in Wujin, Changzhou, so some historians have analyzed that most of Xiang Yu's guards were recruited soldiers in Changwu area.