After the Shu Han experienced the loss of Jingzhou and the defeat of Yiling, it had already lost the opportunity to unify the world. Liu Bei finished the main battle of Hanzhong in May 219, and Cao Cao withdrew, while Liu Bei was cleaning up the mess. At this time, the elite generals of the Shu Han Dynasty were almost exhausted, and they released the troops in their hands to attack Shangyong, and in fact, they did not have any support capabilities. Guan Yu launched the Battle of Xiangfan in July 219. Then in the beginning of 220 (also the winter of the 24th year of Jian'an), Guan Yu was killed, this time has actually only passed half a year, that is to say, in half a year, Guan Yu from flooding the Seventh Army to the defeat of Maicheng, this time is simply too late to react, it can be said that the army was defeated like a mountain. Shu Han did not have the ability to support, nor did he have time to support.
Guan Yu was Liu Bei's first general, and he basically handed over all the Jingzhou army to Guan Yu. With the addition of Guan Yu, such a military configuration is basically foolproof in Jingzhou. Moreover, Liu Bei had just unified Chengdu Yizhou and fought a major war with Cao Cao. Yizhou has a natural barrier, but it also curbs the speed of rescue in Jingzhou. Liu Bei had just won a great victory, but he also wounded the enemy by a thousand and lost eight hundred, and needed to be rectified, in Liu Bei's view, as long as Guan Yu involved Cao Cao's army and did not take the initiative to attack Cao Cao, Jingzhou was also foolproof, and it was difficult for Sun Quan to sneak attack. But the key is that Guan Yu is proud not to say, but also a big victory over Cao Cao's army, and the proud army will be defeated. In order to increase the greater results, the fever in the head withdrew from the Jingzhou Army, resulting in the loss of Jingzhou. If Guan Yu had not fainted in victory, he would not have finished drawing the Jingzhou soldiers and returned to Jingzhou in time. Sun Quan could not have taken Jingzhou so quickly, and Liu Bei had the opportunity to rescue him. Although there are many Jingzhou troops around, but the main force is finished, who will still take their lives to play.
Jingzhou was lost, and Liu Bei did not react at all, mainly for four reasons. First, things happen too quickly. Second, after Liu Bei Group finished Hanzhong, it needed to rest. Third, Liu Bei's clique was engaged in the issue of Liu Bei's claim to the emperor at this time, and this Guan Yu knew about it, and Guan Yu sent something to Liu Bei. The State of Wu felt a crisis because of Liu Bei's Battle of Hanzhong and Guan Yu's flooded Seventh Army, coupled with the death of Lu Su of Liu and the rise to power of Lü Meng, who swallowed Liu's arrogance, the policy of the State of Wu changed, and it resolutely united with Cao Cao to swallow Jingzhou alone. Fourth, the flooding of the Seventh Army is a small probability event, who would have thought that it would suddenly rain when it should not have rained, so it was very likely that Guan Yu would have just hit a soy sauce, anyway, often hit soy sauce, things happened, Liu Bei has not yet figured out the situation, the news is one after another, and there is no opportunity to judge.
The Battle of Yiling was the same as the Battle of Chibi, and Zhuge Liang and Lu Xun, who had been living in the south for a long time, cleaned up Cao Cao and Liu Bei of the northerners, all of which used their understanding of the local climate to wait for a favorable wind direction and burn their opponents. Zhuge Liang must have known this, but he did not warn Liu Bei. What kind of mentality the real Zhuge Liang was in history, we don't know, but as far as the Romance of the Three Kingdoms is concerned, he did do a lot of intriguing things, forcing Wei Yan to rebel and influencing Liu Bei to abandon Guan Yu in Jingzhou. There is also Liu Bei's Battle of Yiling, if he reminds Liu Bei of the change in the weather in advance, there is a fire to burn the camp for seven hundred miles, Liu Bei has fought a lifetime of battles, will not pay attention to the wind direction to prevent fire attack, if it is against the wind in the morning, will he dare to camp?
In the omission of history, Liu Bei could completely rely on the mountains and danger, resist the strong enemy, divide the troops and encircle the way, and directly take Wudi. However, due to the large time span, it gave Eastern Wu a chance to breathe. If Liu Bei could adopt a stable and controlling strategy to prevent troubles, Eastern Wu would have no opportunity to take advantage of it. Liu Bei's mistake was wrong, the wrong time, the wrong node, ruined himself. The reason why the Battle of Yiling was lost was entirely a mistake in decision-making. It was not surprising that Lu Xun was able to take the method of advancing by land and water, attacking with fire, and directly taking Liu Bei.
Before Liu Bei's death, Zhuge Liang had always existed as a logistics leader. Liu Bei's conspirators were Pang Tong and Fa zheng, but these two people died one after another. Before Liu Bei's death, in order to balance the forces of all sides, Zhuge Liang, a representative figure of the Jingzhou faction, was selected as an auxiliary chancellor, and colleagues and representatives of other factions were selected. In the early days of Liu Chan, the Jingzhou faction had the upper hand, implementing legal evidence internally, strict political laws, and advocating expansion externally. After Zhuge Liang's death, the Jingzhou faction was no longer in the ascendant, and each faction carried out its own government, and after Deng Ai's army arrived in Chengdu, many factions took the initiative to surrender, and some people resisted to the death, which also showed that there was internal disunity.
Liu Bei did not achieve achievements in the first half of his life, and suddenly luck came, Jingzhou Bashu Hanzhong successively arrived, and became the emperor, internally did not digest and settle well, he wanted to take Down Eastern Wu with a single blow. In fact, Guan Yu's death and the loss of Jingzhou were already ringing alarm bells, indicating that the situation was dangerous, And Liu Bei had not yet fully realized it, including Zhang Fei was also dead, and Shu Han had suffered considerable losses. When Liu Bei raised an army to attack Wu, the momentum was very strong, and Sun Quan of Eastern Wu had already begged for forgiveness and was willing to return to Jingzhou, if Liu Bei was sober-minded, he went down the slope and went down the slope to make peace with Eastern Wu. Then, in the case of having Hanzhong in Yizhou, Jingzhou, he cultivated for three or five years, and then sent troops after full stability, at that time, the soldiers were well fed, and Cao Cao died for several years and could not threaten him, and he could really restore the Han Dynasty.
Liu Bei took Yizhou, defeated Cao Cao in Hanzhong and killed Xiahou Yuan, Guan Yu killed Pound De at Nanyang to force him to surrender to The Forbidden, and besieged the city of Xiangfan to trap Cao Ren, all of which were military achievements. In terms of pattern, after taking Yizhou, Zhuge Liang severely punished the warrior clan and developed production. And Sun Quan? Under the premise that there had been no large-scale war in Jiangdong for decades, the household registration population grew in a reverse direction, and the Northern Expedition to Hefei played out the hehewei name of Sun 100,000. Shu and Wu were not originally from the same family, and they could turn their faces at any time, and the focus was only on whether Wu could be unified, and whether Shu or Wei were unified, was there a difference for Wu? If there can be no reunification, then it is necessary to maintain the three kingdoms, and whoever wants to unify will unite with another to kill him. Shu is dead, Wu is also going to die, but the reverse is the same, Wei is dead, Does Wu still want to live, from Wu's point of view, repairing the knife Liu Bei must do.
Liu Bei was incapable of defeating Eastern Wu, first, Jiangxia was in the hands of Eastern Wu, strangling the river, Guan Yu could not quickly go down the river, even if the ground attacked, it could only slowly go east. Second, if Guan Yu went east, Eastern Wu would definitely concentrate its forces to defend, Guan Yu's small number of troops was not enough to defeat the strength of all Wu, the strength of Jingzhou would inevitably be empty, the eastern Wu defense line along the river would inevitably be tightened, and Cao Wei could also wait for an opportunity to cross the river. Third, even if Liu Bei went all out to the east, Hanzhong would inevitably be empty, and even if Liu Bei defeated Eastern Wu miserably, he would not have enough troops to deploy along the river, and Cao Wei could completely watch both sides lose and be injured, and take down any side, and the overall situation would be decided. After the Battle of Yiling, if zhuge liang had not stabilized the overall situation and did not fight with Eastern Wu, the Three Kingdoms would have ended long ago