1, Chu was deceived by Qin and lost its status as a great power.
During the Spring and Autumn Period and the Warring States Period, Chu was always a big country. Since Zhao was defeated by Qin, only Chu was left in the six Kanto countries to resist Qin. The king of Chu served as the leader of the alliance for many times and was responsible for leading countries to unite against Qin. In its heyday, the King of Chu could summon the Kanto countries and Yiqu, west of Qin State, to make efforts to Qin State, and once captured Quwo, the forward base of Guo Dong, Qin State.
However, the State of Qin sent Zhang Yi to deceive Chu Huaiwang with the routine of "six hundred li and six li", making Chu and Qi enemies. In a rage, he sent troops to attack Qin twice and was defeated by the brother of Empress Xuan. Qin Jun even occupied Zhaoling of Chu State. When countries saw that Chu was weak, they threw stones when it rained. Chu quickly turned from prosperity to decline, and there was no longer its former glory.
2. Chu Huaiwang died in Qin State.
The State of Qin messed up the relationship between Chu and Kanto countries, forcing Chu to move closer to the State of Qin. However, after a period of cooperation between Chu and Qin, Qin seized a large area of land in Chu. There is a saying, tell the truth when you get cheap. This is the case in the state of Qin. After taking advantage of Chu, he even offered to make peace with Chu. Proceed from the overall situation and go to Qin to make peace. As a result, he didn't expect that this was the same trick of Qin.
As soon as Chu Huaiwang entered the State of Qin, he was detained by Qin Jun to Xianyang. Chu Huaiwang was the king of a country, but he was humiliated in Xianyang. The king of Qin kept bullying him to cede the city, but he just refused with his teeth clenched.
The king of Qin also failed to achieve his goal and vowed not to give up. He has just detained him for two years. Two years later, with the help of the Chu people, he escaped from the State of Qin and went to the State of Zhao first, but at this time Zhao was too scared to take him in. When he turned around and fled to Wei, he was taken back to Xianyang by the pursuers sent by Qin. Less than a year later, he died in Xianyang. When Qin returned his body to Chu, Chu people were indignant.
1, Xiang Yan committed suicide.
After Ying Zheng succeeded to the throne as the king of Qin, after some preparations, he sent troops to destroy Korea, Zhao and Wei. In 225 BC, Ying Zheng sent Meng Tian and Li Xin to lead 200,000 Qin Jun to launch a war to destroy Chu, which swept all the way, leaving Chu in a critical situation. At this time, Xiang Yan (Xiang Yu's grandfather) did not rashly fight Qin Jun, but exchanged the depth of Chu for the fighter plane.
After Li Xin led his troops to capture Yancheng, the old capital of Chu State, he led the army to the west and prepared to join forces with Meng Tian. Xiang Yan seized the opportunity, and was advancing the Chu army day and night, galloping after Li Xin and his men, and finally defeated Li Xin and his men. As a result, Ying Zheng failed to destroy Chu in the first battle. In 224 BC, Ying Zheng sent Wang Jian to attack Chu with orders three times that of Qin Jun.
For a time, a large area of land in Chu fell. The king of Chu quickly called the national army and handed it over to Xiang Yan to resist Qin Jun. At this time, the Chu State was not the Chu State at that time. Although recently won the state of Qin, but still consumed a lot of national strength, so Xiang Yan can only do it quickly, otherwise the logistics will be worrying. Regrettably, Wang Jian paid attention to winning in the war and never played against Chu Jun. Xiang Yan finally chose to quit because of logistics problems. As a result, Wang Jian hit him halfway and Chu Jun was defeated. Xiang Yan committed suicide and died. The Chu people are pitiful.
2. Xiang Liang is dead.
Although the Qin Dynasty unified the world, its poor governance led to the sound of "governors would rather have seeds" like thunder on the ground. Xiang Yan's son, Xiang Yan, gathered the strength of the Chu people in Jiangdong and captured Huiji County. With Xiang Jia's prestige in Chu, the rebels constantly defected to Xiang Yan, and even Liu Bang joined them. After the collapse of Chu Chen's political power, Xiang Yan made Xiong Xin, the grandson of Chu Huaiwang, king of Chu in order not to follow the old path of Chen Chu.
At the suggestion of Sean, Xiang Liang also supported Han Cheng, a descendant of the Korean royal family, to rebuild South Korea, which pushed the anti-Qin situation to a climax. Emperor II urgently ordered Zhang Han to attack Xiang Liang, but Zhang Han met Xiang Liang in Youzhou and was defeated by him one after another. Xiang Liang even sent troops into Sanchuan County, a strategic place, and killed Chief Li You (son of Reese).
Unfortunately, with Chu Jun's successive victories, Xiang Liang began to despise Qin Jun. As the saying goes, pride goes before a fall. Even a star like Xiang Liang. After receiving reinforcements from Guanzhong, Zhang Han accidentally broke Xiang Liang by Xiang Liang, and Xiang Liang died unexpectedly.
1, the geographical location of Guanzhong
Guanzhong was the most suitable place in the world to establish the imperial career at that time. Externally, there are various mountain passes in Guanzhong, which can stop the enemy. At home, Guanzhong has been a fertile ground since the establishment of Zheng Guoqu. No matter what forces occupy Guanzhong, as long as they send troops to guard the passes everywhere, they can develop with peace of mind. Once they have accumulated enough strength, they can move eastward. Even if we fail to advance eastward, we can retreat to Guanzhong and remain invincible.
There is also a big granary in the south of Guanzhong, which is the land of Bashu, and Bashu has never had any strong local power. As long as it sends troops across the Qinling Mountains, it can easily capture Bashu. When Guanzhong and Bashu become one, they can take the hometown of Chu and the hometown of Sanjin from Guanzhong Middle East. The two strategic directions can echo each other and always have an advantage.
2. The political significance of Guanzhong.
Zhou tribe pushed eastward from Guanzhong, destroyed Shang Dynasty and established Zhou Dynasty. After Pingdong moved eastward, Guanzhong was gradually occupied by Qin and developed in Guanzhong for hundreds of years. Finally, with the power of one country, the six countries in Kanto were destroyed and the whole country was unified. In the process of destroying the six countries, Qin Shihuang also mapped the Miyagi of the six countries, and combined with the characteristics of the Miyagi of the six countries, he built the Epang Palace on the south bank of the Weihe River, with an annual manpower of 700,000, which was never completed by the Qin Dynasty.
Although the Qin dynasty was short-lived, it was a unified dynasty after all, and it still had some prestige in the hearts of the people. If a vassal occupies the old place of Qin, the political advantage is obvious. Then someone will think, why doesn't Xiang Yu take it? Xiang Yu's foundation is in Chu, and there is also a nominal world co-owner on Xiang Yu's head-Yidi Xiong Xin and Xiong Xin are also in Chu. As for the theory that Jinyi travels at night, it is biased.
Since Xiang Yu didn't take it, he couldn't let others take it, so after he rampaged, he divided it into three parts and gave them to Zhang Han, Sima Xin and Dong Kun respectively. It is worth mentioning that the intersection of these three vassal fiefs happened to be in Xianyang. From this perspective, Xiang Yu will not allow any vassal to have the political advantage of Xianyang.
Xiang Yu is different from Liu Bang. Liu Bang had no family feud with Xiang Yu, nor could he represent the nobles of Chu like Xiang Yu. Therefore, Liu Bang can build his own base camp in the three chapters of Guanzhong. Ethnic hatred and family feuds are all concentrated on Xiang Yu, leaving him no choice in dealing with Guanzhong, Xianyang and Qin Gong. He only needs to set fire to Qin Gong and then suppress it, so he can establish an influential Xi Chu regime.
Unfortunately, what Xiang Yu didn't expect was that Liu Bang was able to defeat the three governors of Guanzhong in one fell swoop. According to the whole land of Guanzhong, quickly restore the vitality of Guanzhong. He also took advantage of the hatred of the Guanzhong people for Xiang Yu, and suffered repeated defeats. The stronger the Vietnam War, the more he committed suicide on the banks of Wujiang River.
References:
history
Chu-Han War
Tragic hero Xiang Yu