In the process of Liu Yu's conquest of Later Qin, Northern Wei sent troops to obstruct it, but was defeated by Liu Yu, and many people judged according to this: in front of Liu Yu, Northern Wei was vulnerable, and if Liu Yu was willing, he could destroy Northern Wei at any time.
It seems to me that this statement clearly does not stand up to scrutiny.
At that time, the Northern Wei Dynasty would not fight with the Eastern Jin Dynasty at all. Because at this time, the Northern Wei Dynasty had no plans to expand south for the time being, their main enemy was Rouran in the north, and Liu Yu at this time was not a trouble for the Northern Wei.
The target of Liu Yu's expedition was Later Qin. If Northern Wei really arranged heavy troops to go to war with Liu Yu, wouldn't it be for Later Qin to be a thug?
Based on this judgment, Northern Wei's battle plan against Liu Yu must have been extremely conservative, that is, ordinary harassment tactics. If liu Yu's northern expedition plan could be destroyed, it would naturally be perfect, and if this goal could not be achieved, then don't be it.
Based on this judgment, northern Wei did not continue to invest troops after the initial defeat, but instead withdrew and left the battlefield. Judging from the results, this practice of the Northern Wei Dynasty is undoubtedly correct.
In the process of Liu Yu's conquest of Later Qin, Hu Xia did not send an army to obstruct, and many people judged according to this: in front of Liu Yu, Hu Xia was vulnerable, and if Liu Yu was willing, he could destroy Hu Xia at any time.
In my opinion: this statement also does not stand up to scrutiny.
At that time, Hu Xia had already coveted Later Qin. When Yao Xing was alive, Hu Xia often harassed Later Qin, and now that Yao Xing has died, the entire Later Qin is infighting, and there is a possibility of fragmentation at any time, how is Hu Xia willing to give Liu Yu the fat in his mouth?
Hu Xia has been operating in the northwest region for a long time, and the local foundation is far from being comparable to Liu Yu. Liu Yu killed from the south to the north, the supply line will inevitably be elongated, from this point of view, Liu Yu may not be able to pass the Hu Xia pass. In this regard, Liu Yu should also know it. After entering Chang'an, Liu Yu immediately wrote to Helian Bobo, hoping that the two sides could get along harmoniously.
Liu Yu destroyed Hong, entered Chang'an, sent an envoy to a testament, please reconcile, about brothers. —— Book of Jin, vol. 130, Zaiji 30
Based on this judgment, Helian Bobo was ostensibly willing to establish friendly relations with Liu Yu, but Liu Yu could not stay in the northwest for a long time after all, and he always had to go back. As soon as Liu Yu left the northwest, Helian Bobo would immediately attack Liu Yu's army left in the northwest, and later facts proved this.
Seeing this, I always think of Xiang Yu after the kings were divided.
After Xiang Yu divided the kings, he immediately set out to attack Tian Rong, who occupied the homeland of the State of Qi, and destroyed Tian Rong in about a month. But Xiang Yu did not dare to look forward to being in the qi state for a long time, because he was surrounded by strong enemies near his hometown of Pengcheng.
As Xiang Yu expected, Liu Bang took Zhang Handan and the others stationed in Three Qin as quickly as possible and rushed to raid Pengcheng. Xiang Yu had to turn back to Liu Bang in a hurry, but as soon as Xiang Yu left, Tian Heng regained the qi country's hometown, which was called "pressing the gourd down and lifting the scoop".
With the former Tian Hengfu to regain the city of Qi, Rita Rongzi became the king of Qi, and the horizontal phase, the dictatorship, and the government were all broken. --Chronicle of History, vol. 94, Tian Dan Lie, 34
Liu Yu also had the same confusion, although Liu Yu had monopolized power, but nominally, the Eastern Jin Dynasty was still a country established by the Sima imperial family, the whole society was still the world of the theory of mendi and bloodline, and the noble clan was still the main body of the country.
In this context, Liu Yu never dared to leave the Eastern Jin Dynasty for a long time, so Liu Yu certainly did not have time to stay and slowly digest Later Qin. Just as when southern Yan was destroyed, Liu Yu did not stay long, but directly led his army back, and only after returning to the Eastern Jin Dynasty did he receive the news of Lu Xun's army.
Many people believe that Liu Muzhi's sudden death completely disrupted Liu Yu's deployment, which is also wrong in my opinion.
For politicians of Liu Yu's level, their judgment of their subordinates is usually to analyze the interests of their subordinates, rather than betting on the loyalty of the other party. The reason why Liu Yu dared to trust and reuse Liu Muzhi so much was not because Liu Yu firmly believed that Liu Muzhi would be loyal to himself, but because Liu Yu firmly believed that Liu Muzhi did not have the ability to replace himself.
From this point of view, Liu Muzhi is only attached to the existence of Liu Yu, not a big man with independent forces. If Liu Yu does not return to the dynasty for a long time, Liu Muzhi will definitely have no sense of security, and when Liu Muzhi loses his sense of security, he will give people with hearts an opportunity to take advantage of it.
If Liu Yu had only left for a short time, Liu Muzhi might have been able to use Liu Yu's name to subdue others; but once Liu Yu planned to stay in Houqin for a long time and slowly digest the fruits of his victory, it would not be surprising that any change occurred in the Eastern Jin Dynasty, and it was even less surprising that Liu Muzhi was directly killed by a powerful figure.
In summary, Liu Yu's rush to the class was definitely not because of Liu Muzhi's sudden death. Even if Liu Muzhi did not die suddenly, Liu Yu did not dare to look forward to being in the northwest for a long time.
From the perspective of personal ability, Tuoba Jue became the acting king at the age of 15, slashed and killed all the way, and forced to create a powerful Northern Wei, his personal ability should not be inferior to Liu Yu, right? If we follow this line of thought, Tuoba Jue will certainly be able to take advantage of the situation to occupy the north and then eliminate the Eastern Jin Dynasty and unify China.
But the truth is that in the last ten years of Tuoba Jue's life, the territory of the Northern Wei Dynasty did not expand at all.
In fact, it is not difficult to understand, it is just a simple logical problem: someone can eat the first steamed bun, and he can also eat the second steamed bun, but it does not mean that he can eat one by one until he is old, because he always has enough to eat.
Tuoba Jue did not continue to expand after the fall of Later Yan, not because Tuoba Jue became faint; Liu Yu did not continue to expand after the fall of Later Qin, not because Liu Muzhi died suddenly.
There was only one reason: they were all full.
There was once a man who was full of food who had to do his best and continued to swallow the steamed bun into his stomach, and as a result, his belly was broken, and finally the rescue was ineffective. This man's name was Jian Jian, and the steamed bun that broke his belly was the Battle of Shuishui.
If Liu Yu really has the ability to unify the world, even if he loses this opportunity, he will have the next opportunity. Just like a hungry man, as long as he still has an appetite, he will not worry about not finding food.
But the fact is obviously not so, Liu Yu is lucky, not by Hou Qin's steamed bun to death, just vomited out of his stomach.
Judging from the conquered Later Qin, were they willing to become part of the Eastern Jin Dynasty? The answer, I'm afraid, is no.
There is a story in history that after the fall of the Western Jin Dynasty, Du Pre's descendants have been serving the northwestern regime. After Liu Yu conquered Later Qin, Du Pre's descendants Du Ji and Du Tan's brothers followed Liu Yu back to Jiangnan.
One day, Liu Yu's son Liu Yilong and Du Tan chatted about Kim Il-seok. Liu Yilong sighed and said, "Why don't I have someone like Kim Il-ri in my dynasty?" ”
Dutan said: "Even if I have a person like Kim Il-seok, he can only be sent to raise horses, and he will not have the opportunity to serve the country." ”
Liu Yilong said unhappily, "Why do you talk about me so badly?" ”
Du Tan said: "We Du clan are a rich and prestigious family, because we crossed the river a little late and failed to keep up with the pace of the Eastern Jin Dynasty, so we have been discriminated against. If a Hun like Kim Il-ri lived today, if he didn't feel at ease raising horses, what else could he do? Liu Yilong listened and was silent.
Tasting and Taizu talked about the history books, it is said: "Jin Ribao is loyal and filial piety, and the Han Dynasty is beyond reach, and hates such a generation in this world." Tan Yue: "The beauty of the sun is like the holy commandment." If you are born in this world and have no time to raise horses, how can you do it? The upper discoloration said: "Qing What is the thinness of the imperial court?" Tan Yue: "Please say it as a courtier." The Chinese High Clan, the great-great-grandfather of the Jin clan, was buried, sowed the cool soil, and the world and leaves were inherited, and they did not perish. It is not too early to go straight south, and it is divided by absurdity. The Nichiren Hu people, as a shepherd, surpassed the internal servant and ranked the sages. Although the Holy Pilgrimage has regained its talents, the subjects may not be able to do so. "On silence. - Book of Song, vol. 65, Liechuan 25, Jihan Liu Daoshan, Du Ji Shen Tian
Du Xuan was a well-known cattle man in the Western Jin Dynasty, and his descendants still had such complaints, if the other rich clans of Later Qin actively moved closer to the Eastern Jin Dynasty, what would be the fate that awaited them? Obviously not too wonderful. You know: among these rich warriors, there must be a lot of Hu people.
But if they stayed in the local area and actively cooperated with Hu Xia or Northern Wei, both Hu Xia and Northern Wei would respect them, because after hundreds of years, these giants had already rooted in this land.
From this point of view, the rich warrior clan of Later Qin would not actively cooperate with Liu Yu, and it would be difficult for Liu Yu to digest Later Qin.
Some people also said: Then liu yu will not leave them in the local area? Why bring it back to the South?
This is a superfluous question. Originally, after Jian Jian destroyed Former Yan, the first thing he did was to move some of Former Yan's rich clans to Guanzhong. One is to facilitate management, and the other is to worry that they are in turmoil in their hometown.
If Liu Yu destroyed Later Qin, but still left the local noble clan in the same place, then who was the land that had just been conquered?
Finally, judging from Liu Yu's internal reaction, they obviously also understood a truth: the northwest territory could not be defended.
Before leaving the northwest, Liu Yu appointed his son Liu Yizhen as the highest local military and political governor, and at the same time ordered Wang Xiu and others to assist Liu Yizhen.
It is the military commander of the three counties of Hedong, Pingyang, and Hebei in the three prefectures of Yong, Liang, and Qin, the general of Anxi, the lieutenant of the leading Western Rong, and the assassin of Yongzhou. Tai Wei consulted Wang Xiuwei of Jingzhao and entrusted Him with the post of Guanzhong. - Book of Song, vol. 61, Liechuan 21, Wu Sanwang
At that time, Liu Yizhen was only twelve years old, if Liu Yu really wanted to find someone with outstanding ability to run the northwest, how could he choose a twelve-year-old son?
Taking a step back, even if Liu Yu does not trust others, so let his son be on the top, and others check and balance each other, it is reasonable. But the problem is: as soon as Liu Yu left on his front foot, Wang Xiu and others immediately began infighting.
In the infighting, Liu Yizhen's subordinate Shen Tianzi killed Wang Zhen evil, Wang Xiu killed Shen Tianzi, and Liu Yizhen killed Wang Xiu again. Many people blamed this infighting on Liu Yizhen's ignorance, which was a bit unjust to him.
Shen Tianzi killed Wang Zhen evil, and Wang Xiu killed Tian Zi at the same time. Righteousness is true and young, and the gifts are not in moderation, the cultivation is often cut, and the left and right are resentful. - Book of Song, vol. 61, Liechuan 21, Wu Sanwang
Whether it was Wang Zhen evil or Wang Xiu, their status in Liu Yu's lineage was very high, and the only person who could decide their fate was Liu Yu. No matter who it is, on what grounds and reasons to kill such a high-ranking official, his behavior itself is suspected of betraying Liu Yu.
And many powerful factions under Liu Yizhen dared to risk betraying Liu Yu to engage in infighting, and there was only one reason that could be explained: they believed that the Emperor of Heaven was far away, and Liu Yu could not control them. So they began to attack their colleagues around them, hoping to get the opportunity to monopolize power and establish a second Later Qin.
If Liu Yu's influence could easily reach The Later Qin homeland, how could these people dare to engage in such wanton infighting?
Regarding the hypocrisy of the southern regime, the Northern Wei Emperor Tuoba Tao said an extremely arrogant sentence: "If you want to occupy the Central Plains, then please do whatever you want, I will never fight with you at such a time." But when the Yellow River freezes in winter, my cavalry will march south, and I hope that by then you will not regret it. ”
Now that he wants to come from the other side, he will be able to go to Zhongshan and SangganChuan, and he will walk at will, and he will not welcome him or send him. If you are tired of his district, you can come to Pingcheng residence, and I will also go to Yangzhou, and it will be easy to get along. He was fifty years old, and he had not yet tasted the house, although he came on his own, like a three-year-old baby, and I was humble to grow up on the horse. - Zizhi Tongjian, Song Ji VII
When Yao Xing was still alive, Liu Yu wrote a letter to Later Qin, and Later Qin immediately ceded twelve counties to the Eastern Jin Dynasty, but what was the use of this? Yao Xing was not worried about Liu Yu's threat, because he knew that Liu Yu was by no means an impulsive person, and being able to use this twelve counties like a chicken rib to balance the south was definitely not a loss-making transaction.
Liu Yu sent envoys to seek peace with Qin, and asked for Nanxiang and other counties, and the King of Qin promised it. Twelve counties, including Nanxiang, Shunyang, Xinye and Wuyin, were assigned to Jin. - Zizhi Tongjian, Jin Ji 36
If it weren't for Yao Xing's blind play in his later years, causing Yao Hong to rise to the throne after he took the throne, how could Liu Yu have played Later Qin's calculations?
Liu Yu was able to destroy Southern Yan because the international environment was friendly to Liu Yu, Yao Xing was beaten by Helian Bobo, and Northern Wei and Rouran were inextricably killed. At that time, Liu Yu was not a chaotic thief, so the domestic environment was also very friendly to Liu Yu. In this context, Liu Yu played around Nanyan for more than half a year before finally destroying Nanyan.
However, at this time, Liu Yu was already a veritable traitor to the Eastern Jin Dynasty; at this time, two powerful states of Huxia and Northern Wei had already appeared around Later Qin.
In this context, what can Liu Yu do in addition to compromise?
Recommended reading of related articles in previous periods:
Eliminate Lu Xun, Liu Yu cracked the big crisis
Liu Yu purged dissidents and embarked on the path of power
Liu Yu coveted Later Qin, and Helian Bo huang que was behind