Historical allusions are as follows:
In December of the second year of the Han Dynasty, Han Xin and Zhao continued to fight, and Liu Bang returned to Xingyang. After Ying Bu's mutiny, Xiang Yu sent Long Qie to attack Ying Bu, Ying Bu was defeated and returned to Xingyang with the army.
Liu Bang summoned Ying Bu, sent Ying Bu back to Jiujiang, and gathered thousands of people back to Han. Liu Bang also left Xingyang, and went south from the elevation to Wanxian (now Nanyang, Henan) and Yexian to meet Ying Bu, sending more troops to Ying Bu and returning to the elevation together. Liu bang was holed up in Xingyang and began to build tunnels. Aocang delivered food to Xingyang. Confronted with Xiang Yu, both sides entered a stalemate.
In 204 BC, Xiang Yu's Chu army surrounded Xingyang, and Liu Bang felt the situation was critical and asked Xiang Yu for peace. Xiang Yu listened to the counsel of Fan Zeng, the counselor, rejected the demands of the Han army for peace and decided to pursue it. Liu bang is a weak individual, but he is very good at calculating. He accepted Chen Ping's advice, used double spies on Chu Army, and tried to alienate Xiang Yu and Fan Zeng.
Xiang Yu is brave, but there is nothing he can do. I wonder if it was Liu Bang's plan. He had bad blood with Fan Zeng and expelled him from the army. Fan Zeng was wronged, swallowed their anger, and died on the way. Since then, Xiang Yu has lost many famous soldiers and missed many soldiers.
At that time, the Chu army was in full swing and stepped up its siege of Xingyang. The situation is very unfavorable to the Han army. Ji Xin, a general who looks like Liu Bang, decided to sacrifice himself for the safety of Hanwang and the survival of the Han army and suggested that Liu Bang escape. Under Chen Ping's persuasion, Liu Bang was deeply moved by Ji Xin's move, so he asked Ji Xin to put on Hanwang's clothes, took a Hanwang car and pretended to be Hanwang out of the East Gate of Xingyang, and took the opportunity to escape from the West Gate to the elevation.
After Xiang Yu found out that he was cheated, Ji Xin was destroyed and the elevation was broken. Liu Bang quickly fled the elevation, crossed the Yellow River to the north, and led the army to Xiuwu. With the help of Han Xin, his power grew again. He accepted the lessons of the past and decided to use the deep ditch and high base and Xiang Yu as a protracted war to consume the troops of the Chu army. At the same time, he sent troops to attack Chu and burned its grain and grass.
In autumn, Xiang Yu led the troops eastward, fought Kaifeng and Shangqiu, and left Cao Cao's department in charge. And repeatedly told not to fight the Han army anyway. After learning the information, the Han army repeatedly went to the city gate to complain. Cao could not bear to be humiliated, so he led his troops out of the city in anger and wanted to cross Surabaya to fight the Han army. The ship reached the river and was defeated by the surprise attack of the Han army. Cao knew that he was ashamed to see Xiang Yu, regretted it and committed suicide. Liu bang regained the elevation, stationed troops and tried his best to use the food of Aocang.
Xiang Yu heard that the elevation had fallen and hurried back to Guangwu, but Liu Bang could not leave the city. The lack of food in the Chu army has been unfavorable for a long time. In order to force Liu Bang to surrender, Xiang Yu dragged the captured father of Liu Bang to Zhaoguangwu Mountain in the east of the city and threatened Liu Bang across the stream, saying, "If you don't surrender early, I will boil your father to death."
Liu bang pretended to be calm and said, "At the beginning, the two of us opposed the State of Qin and became sworn brothers in front of us. My father is your father. If you want to cook our father, don't forget to give me a bowl of broth. " Xiang Yu became more angry after hearing this and decided to kill Liu Taigong. At this time, Xiang Bo advised Xiang Yu: "Now is not the time to kill Taigong, and it is not good for the Chu army." According to him, Taigong survived.
Shortly thereafter, Liu Bangbing was divided into two roads, and all the way was still at loggerheads with Xiang Yu in Xingyang. At the same time, he sent a general, Han Xin, to copy the Chu army's posterior route and occupy Hebei and Shandong regions. From then on, the Han army had a more consolidated rear, and Xiao He in Guanzhong continuously sent troops and expenses. At this time, Xiang Yu's supply was difficult and dangerous, and the situation reversed. The Chu army gradually weakened and the Han army gradually became stronger.
In August of the fourth year of the Han Dynasty (203 BC), the Chu army ran out of food and grass, Xiang Yu was forced to make peace, and Liu Bang failed to mobilize reinforcements from Han Xin, so the two sides concluded a peace treaty to "carve up the world" and demarcate the gap (the ancient canal, located in the east of Xingyang, Henan Province), which belonged to Chu in the east and Han in the west. After two years and five months of stalemate between Xingyang and Gaoping, the two armies of Chu and Han stopped fighting.
"Historical Records of Xiang Yu" records: "Make an agreement with Korea to divide the world. The west is Han and the east is Chu. "
Extended data
The "Chu River Han boundary" was located in Xingyang elevation area in ancient times, with the Yellow River in the north, Mangshan Mountain in the west, Plain in the east and Songshan Mountain in the south. It is a battleground for military strategists in past dynasties. More than 2200 years ago, Chu overlord Xiang Yu and Hanwang Liu Bang took Xingyang as the main battlefield and launched a four-year onslaught. Taking the gap between Xingyang as the boundary, they carved up the world and became one of the most wonderful fragments in the long history of China.
There are also two ancient city ruins in Guangwu Mountain of Xingyang, the one in the west is called Hanwang City, and the one in the east is called Bawang City, which is said to have been built by Liu Bang and Xiang Yu. In the middle of the two cities, there is a big ditch about 300 meters wide, which is what people usually call a gap, and it is also the basis for marking the boundary of the Chu River on the chessboard.