Why did Xiang Yu and Liu Bang negotiate peace, and the harmony between Liu Bang and Xiang Yu

Because both sides can't fight anymore.

Xiang Yu Although the Chu army won many victories and lost few years in the Chu-Han War, the victories were all small victories, and the defeats were all big defeats. Small victories Most of the Han troops eliminated were small forces blocking the attack. Great defeat A large number of main forces and reserves were wiped out.

In addition, Peng Yue and others constantly harassed or cut off the grain route, forcing Xiang Yu to lead the main force to run around, and he couldn't fight everywhere. In the end, the Chu army was exhausted, lacked food and grass, and urgently needed to rest.

Liu Bang Although the Han army had the initiative on the battlefield before the peace talks, the Chu army was brave and brave for several years, and the Chu and Han wars also caused many casualties to the Han army. In the end, the elderly in their sixties and the children in their teens had to be sent to the battlefield, and the soldiers were in a state of exhaustion. What's more, Liu Bang's father and wife are still in Chuying, and they still want to be rescued.

So the two tired armies can sit down and negotiate peace.

Both of them encountered difficulties in attacking at that time, Xiang Yu.

The 200,000 elite Chu soldiers led by Long and were Han Xin in Qidi.

After the destruction was exhausted, the frontal Chenggao battlefield was also lost due to Cao Yao's arrogance, and the 100,000 soldiers that Xiang Yu was about to bring were also exhausted, and the offensive was completely lost.

Liu. --Liu Bang encountered a good opportunity to attack, but Han Xin and Peng Yue, who had large soldiers, did not obey the order and surrounded Xiang Yu, and he did not dare to do anything to Xiang Yu by relying only on his own headquarters.

So the two of them collegial, what is the swelling? Clear enough.

Both are powerful.

If there is a conflict, you can not fight as much as possible.

After the battle of Pengcheng on the social network, Xiang Yu, at the suggestion of Fan Zeng, followed Fan Zeng through Xingyang, intending to destroy Liu Bang. Liu Bang was so frightened that he used Chen Ping's tactics to alienate Xiang Yu and Fan Zeng, who deprived Fan Zeng of his rights. Fan Zeng didn't expect Xiang Yu to suspect that he and Liu Bang were colluding.

He was so angry that he retreated to his hometown, but died on the road.

Xiang Yu surrounded Liu Bang in Xingyang, and Liu Bang's military potential was very crucial. The headquarters led Ji Xin with 2,000 men and horses in a yellow car, pretending to be Liu Bang out of the city, saying that Liu Bang was willing to surrender. Xiang Yu came to see Ji Xin and asked Liu Bang to be there.

Ji Xin said that Liu Bang had escaped, so Xiang Yu burned Ji Xin to death.

In 203 BC, Xiang Yu captured Xingyang and executed the defenders of Xingyang, Zhou Ke and Zonggong. Liu Bang found Wanhe Ye and sent someone to persuade Yingbu to betray Xiang Yu and enter. Xiang Yu quickly led his troops to attack, occupied the elevation, and then advanced westward.

Liu Bang fled from Gong County and sent heavy troops to stop it, but Xiang Yu was unable to advance.

At this point, crossing the river to attack Dong'a, Chu defeated Xue, so Xiang Yu personally led the army to attack, Peng Yue was lost, but was taken by Liu Bang. Xiang Yu returned to the army and confronted Liu Bang in Guangwu for several months. Xiang Yu singled out Liu Bang, but Liu Bang refused, so Xiang Yu sent a strong man out to challenge him, but he was shot to death by Lou.

Xiang Yu was furious, wearing armor and holding a halberd to challenge him. Lou was annoyed and prepared to shoot Xiang Yu. Xiang Yu glared at him and ran out in fright.

After hearing this, Liu Bang came out to talk to Xiang Yu, and Xiang Yu challenged Liu Bang again. Liu Bang refused, Xiang Yu shot Liu Bang with a crossbow, and Liu Bang retreated into elevation.

Han Congzhou sent a letter to Hebei, broke through Qi, Zhao and other countries, and prepared to attack Chu. Xiang Yu sent the general Long He to attack Han Xin, but was killed by Han Xin. At this time, Peng Yue returned to Shangcheng.

Xiang Yu was furious and went to save him personally, leaving Cao Fu to blame and tell him not to fight. He just had to hold on for 15 days. After Xiang Yu left, Liu Bangjun came to challenge, Cao Zhi was furious, and led his troops to cross the water.

Liu Bangjun took the opportunity to attack and broke Cao's black cauldron. Xiang Yu heard that Cao blamed his failure, so he led his troops back. At this time, Liu Bangjun was besieging Zhong Liqi in Xingyangdong.

When he heard that Xiang Yu had returned, he was very frightened and retreated.

Xiang Yu suffered from the enemy on his back and did not continue with grain and grass, so he returned Liu Bang's family and signed an alliance with Liu Bang to divide the world.

In order to compete for the world.

Xiang Yu led the Chu army on the northern route to annihilate the main force of the Qin army by more than 40 thousand in one fell swoop in the Battle of Julu, and made the greatest contribution to himself, and achieved the status of a general of the princes, commanding the troops of the princes, and having strong strength.

At the same time, Liu Bang led another Chu army led by the righteous army also turned to Henan, surrendered and rebelled, repeatedly broke the Qin army, and entered the customs first to accept the surrender of Qin Ziying. According to the covenant of King Chu Huai "the king who enters the customs first", Liu Bang wants to be the king in the pass.

Xiang Yu also led more than 400,000 princes' troops to Guanzhong. Xiang Yu thought that he had high merit and was strong, so he divided the world by himself, and refused to make Liu Bang, who entered the customs first, the king of Guanzhong, and changed his title to Hanzhong (county governance Nanzheng, now Hanzhong, Shaanxi) as the king, Wang Bashu, Hanzhong three counties, causing Liu Bang to be dissatisfied. and appointed the three generals of Qin to be King Yong, King Sai and King Zhai respectively, to supervise and besiege Liu Bang.

Because of these reasons, the Chu-Han dispute finally broke out.