After Liu Bang defeated Xiang Yu, no one in the world was his opponent. It was at this time that he should be happy, but he heard a news that Lu refused to surrender and wanted to continue to resist. Liu bang was unhappy at that time. After all, the new official has three fires and is a generation of emperors. Naturally, he wanted to conquer Lu, so Liu Bang temporarily put down the idea of calling himself emperor and led the army to conquer Lu.
At that time, Liu Bang arrived at the gate of Lu, but Lu still didn't surrender, because they had Xiang Yu in mind, and he wanted to rise from the mountain and was furious. Xiang Yu, the overlord of the West Chu, is their master, and the pride in the hearts of the people of Lu cannot be surrendered. However, Liu Bang took out Xiang Yu's head at this time, and Lu Zhishen had to accept this cruel reality at this time, because without Xiang Yu, they were far from Liu Bang's opponents. If they resist, the final outcome can only be extinction. So they surrendered.
When Liu Bang went with a great army, he planned to slaughter the city and wanted to bully himself by such cruel means. But when he arrived at the city gate, he was moved by the loyalty of the people of Lu. When I arrived in the city, I heard Lang Lang's reading, which completely dispelled the idea of massacre, and also buried Xiang Yu's body according to the specifications of King Lu. After that, Liu Bang made Heze, Shandong its capital. On the one hand, he was really moved by the loyalty and courage of the people of Lu, and on the other hand, because Lu was originally Xiang Yu's territory, setting the capital here could prevent them from rebelling in the future.