In August of the fourth year of the Han Dynasty, the Chu army and the Han army, who were interested in Guangwu, ran out of food. Liu Bang failed to mobilize the troops of Han Xin, Peng Yue and others, and finally failed to camp the Chu army. As a result, the two sides conducted a famous "gap and negotiation" in history, dividing the world by the canal built by Wei during the Warring States Period.
Then, in September, Xiang Yu, the overlord of Chu, led ten Wan Chu troops to detour south road and retreat in the direction of Guling. Liu bang also wants to go back to the west.
However, just as Liu Bang was preparing to lead the army to the west, Sean and Chen Ping suggested tearing up the gap and discussing it. When Chu Jun was exhausted and came back from the east, he attacked from behind. Zhang He and others thought: "The Han Dynasty had half the world, and all the princes attached it. Chu soldiers stop eating, and this day will also be the death of Chu. It is suggested that "it is better to take it because of its opportunity" ("Historical Records of Xiang Yu").
Liu bang then adopted the advice of the two men, broke faith and suddenly launched a strategic pursuit of the Chu army. When the army chased Xia Nan, Liu Bang gathered Han Xin and Peng Yue to the south, and * * * joined the Chu army through the camp.
In October of five years, Liu Bang led more than 200,000 troops to pursue 100,000 Chu troops to Guling (now Taikang, Henan). But at this time, neither Han nor Peng sent troops to cooperate with Liu Bang. Xiang Yu was furious when he knew. In the early morning, a sudden counterattack was launched here, killing nearly 20 thousand people of the Han army and defeating the Han army again. Liu bang hurriedly led the army to retreat into Chen Xia, built a fortress to hold on, and the Chu army surrounded Liu bang again.
Liu Bang, who stuck to the pass, asked Sean: "What can a vassal do if he doesn't keep his promise?" Sean replied, "The more the Chu troops are defeated, the less land they will be divided, which is inappropriate. Kings can work with the world, and now they can make a difference. I just can't. It's unclear. The king can dedicate himself to Han Xin from Fuhai east of Chen; Suiyang went north to Gucheng in order to fight: if you kill each other, Chu will be easily defeated. "
Therefore, Liu Bang adopted Sean's advice and sealed a large territory east of Chen to Han Xin, the king of Qi. North of Suiyang to Gucheng was awarded to Peng Yue. In this way, Liu bang finally stopped Han and Peng and made them all go south. At the same time, he ordered Liu Jia to lead a joint army to camp from Huaidi to the north, and the Fifth Route Army launched a final encirclement of Xiang Yu. The battle of Gaixia has begun.
Han Xin, king of Qi, was advancing 300,000 troops from Qi to the south, occupying Pengcheng, the capital of Chu, and today's vast areas such as northern Jiangsu, northern Anhui and eastern Henan. The soldiers pointed to the flank of Chu and attacked Xiang Yu from east to west.
Peng Yue, the king of Liang, led tens of thousands of troops to set out from Liangdi, heading south first and then westward. Liu Bang's headquarters troops drove the Chu army to retreat.
Han general Liu Jia led tens of thousands of troops together with Jiujiang Wang and other 100 thousand soldiers. He set out from Huaibei and attacked Chu from the southwest, first attacking Shouchun, then attacking Xiacheng's father and killing all the soldiers and civilians in the city.
Zhou Yin, the Chu general guarding the southern line, rebelled against Chu at this time, killing six counties first, then joining forces with Ying Bu and Liu Jia, and then converging on Xiang Yu in the north;
At the same time, Liu Bangze, who was supplemented by soldiers in Guanzhong, led more than 200,000 troops out of Guling and eastward;
The five armies of the Han army, with a total of nearly 700,000 people, surrounded the Chu army from the west, north, southwest and northeast, and Xiang Yu was forced to lead ten Wan Chu troops to retreat to Gaixia.
In December of the 5th year of Han Dynasty, Liu Bang, Han Xin, Liu Jia, Peng Yue, Ying Bu and other five armies basically completed the encirclement of Gaixia (now Lingbi South of Anhui, Huaiyang and Lu Yi of Henan) with 654.38+ Wan Chu Army. Liu Bang immediately appointed Han Xin as the commander-in-chief of the allied forces to direct the army to fight. Han Xin ordered Liu Jia and Ying Bu Army to close the peripheral export of Chu Army from the south, while Peng Yuejun closed the access from the north. Han Xinjun's main force, Liu Bangbu's 300,000-strong army, integrated into one, and launched an attack on the trapped ten Wan Chu armies to launch a decisive battle! Farewell My Concubine