Emperor Wu of Song's last Northern Expedition, he made up his mind to attack the later Qin Dynasty so quickly because the hero Yao Xing died. However, if the latter Qin dynasty can't control the situation and a civil war breaks out, the result of this Northern Expedition is at best to recover the Luoyang Basin and Yuzhou occupied by the latter Qin dynasty. After the death of Emperor Xiaowu of the Eastern Jin Dynasty, Yao Xing took advantage of the chaos to seize the achievements of Xie Xuan's last Northern Expedition, and then threw its weight around Tongguan.

Both were civil wars in the Eastern Jin Dynasty, which broke the national strength and military power, but they were able to lay the Guanzhong and destroy the country in one fell swoop, thanks to the infighting in the later Qin Dynasty. Then Yao Shao, the last pillar of the Qin regime, effectively fought. Before the arrival of Emperor Wu of Song's army, he had suppressed the civil war in Guanzhong imperial clan and brought the main force of the late Qin Dynasty to Tongguan.

Therefore, the opportunity given to Emperor Wu of Song by the civil war at the end of Qin Dynasty was to easily recover Henan. However, in Tongguan and the main force of the post-Qin dynasty, it was a tough battle, and the opponent was beaten head-on, which made Yao Shao, a veteran of the post-Qin dynasty, angry.

Liu Yu wants to unify the north and the south in his lifetime, so he has to look forward to replicating this victory again in the face of the Northern Wei regime in Hebei. This is really too difficult.

At that time, there was no infighting in the new Northern Wei Dynasty, and the situation was stable. The great turmoil in the Northern Wei Dynasty was first caused by the civil strife after the death of Emperor Tuoba Tao. It has been almost 30 years now, and it is not the result of Emperor Wu of Song's life. Emperor Wu of song didn't have such a long life span, even if he lived 10 for 20 years, it would not be enough.

Emperor Wu of song's military ability is strong enough to resist the Northern Wei Dynasty, but if he really wants to cross the Yellow River and hit Hebei, it is too great a military adventure. Once he fails, he may lose more than Huaibei. There will be chaos in China.

For the Northern Wei regime at this time, on the one hand, we must guard against softness, on the other hand, Wubao in Dazu, Hebei Province is unreliable. If you win, you win, and if you lose, you are in danger of national subjugation. So, of course, this war can't be fought.

As for Emperor Wu of Song, after moving troops south, the Guanzhong area was occupied by Uncle Lian, because Emperor Wu of Song at this time, there is no trustworthy etiquette star, who can resist a son, enough to guard the Guanzhong. If Liu Daogui, his most capable brother, does not die, he may be able to contain Guanzhong.

However, after Liu Daogui's death, he still had to guard Guanzhong. Liu Yuzhen is absolutely trustworthy, he has super powers, and his qualifications and prestige can control the company.

At that time, only people of this level, such as He Wuji, Liu Yi and Liu Daogui, could resist it. Zhuge Changmin or Liu is not enough. It is normal for Wang Zhene, a northern country, to be demoted and not fully trusted. Besides, Wang Zhene and Emperor Wu of Song have no life-and-death friendship, and have a long-term master-slave relationship.

However, if the conspiracy theory says that Emperor Wu of Song deliberately intends to sink and kill, it is also absurd. If Wang Zhene is killed, who will guard the Guanzhong? If Shen's ability is competent enough, it is good for Emperor Wu of Song to let him stay directly. Why bother?

After Emperor Wu of Song attacked the Qin Dynasty, it was basically a legendary thing, and there was no repeated seesaw. The Guanzhong area has also preserved its complete vitality and will never become a ruin.

When Emperor Wu of Song himself returned to Pengcheng, many Han cremation and strongmen in Guanzhong lost confidence and followed him back. However, Emperor Wu of Song left his son and Shen in Guanzhong, and of course he would not die. And even a second-rate commander like Fu Hongzhi can defeat Helian Bobo at the combat level, which shows that his horse bandit corps is not strong in fighting capacity.

If the left-behind Jin generals were not at loggerheads and the north and the south were fighting each other, it would certainly be possible to hold the Guanzhong area. Until a few years later, the Guanzhong area was completely digested and formed a new army, and the Yizhou area of Jingzhou was partially restored to life.

On the other hand, the reason why Emperor Wu of Song did not trust to check and balance the military and political power was because he was completely relieved to hand it over to Wang Zhene, because if all of it was handed over to Wang Zhene, Wang Zhene would be able to raise the banner of rebellion and stand on its own feet as Fu Qin did after defeating Helian Bobo's invasion and attack.

Under the exhausted and dilapidated situation in Yizhou and Jingzhou, Emperor Wu of Song wanted to send troops to pacify the chaos, so he had to come back to the Northern Expedition to chew Tongguan.

Therefore, with the situation in the Eastern Jin Dynasty at that time, it was difficult to control this prominent part of Guanzhong. If Guan Zhong can stop other forces, the commander will be able to stand on his own feet. If Guan Zhong can't stop it, it's the historical situation. Helian Bobo, a horse thief, got a big bargain.

There were not many troops in Guanzhong at that time. Emperor Wu of song stayed in Guanzhong with only ten thousand troops from the south, plus tens of thousands of soldiers from Guanzhong. So, if we concentrate our forces on Tongguan, Chang 'an will be lost, as will Chang 'an, the core city of Guanzhong. The local tyrants around us will definitely fight Reservoir Dogs and die directly. Emperor Wu of song's own core base area is Shouchun in Pengcheng, and Luoyang put aside the unfavorable situation. The key is the long-term war in the north, which makes it difficult to guarantee the long-term stationing of troops.

If Emperor Wu of Song can pull 70,000 or 80,000 reinforcements from Bashu Jingzhou area at any time, how can Guanzhong fall? Later, two heroes, Zhu Chaoshi and Zhu Lingshi, were defeated and died. The fundamental problem is that they are short of troops, so Helian Bobo used the sea tactics to panic in the crowd.

When Helian Bobo won the Guanzhong, Emperor Wu of Song wanted to send troops to conquer. His men understood and told him that the thief was afraid of you. If the thief hears that you are coming, he will try his best to hold Tongguan. If we only defend Luoyang, we don't need you. On the other hand, if we can't beat Guanzhong, Luoyang will be harassed endlessly. -It is precisely because of this that Emperor Wu of Song swallowed the bitter fruit and climbed north in Pengcheng, shedding heroic tears.

In the final analysis, it is because the Northern Expedition of Emperor Wu of Song was launched when the national strength of the Eastern Jin Dynasty was extremely weak. The total strength of Bashu Northern Expedition did not even reach 10,000 people. Even after many years' rest in Liu Yilong and Song Wendi, Qiu Chi can still win the whole Hanzhong. It is conceivable how weak the military strength of Bashu was at that time.

Jingzhou Jiangling was conquered several times after many civil wars. During the Huan Wen period, 40,000 to 50,000 people were able to pull out the Xiliang Army that went deep into Chang 'an during the Northern Expedition. By the time of Emperor Wu of Song's Northern Expedition, only 7,000 people were sent in.

It can be said that Emperor Wu of Song has always been "small and broad" and careful in calculation. With his outstanding military and political talents, he hit the best with a bad hand.

Compared with Zhu Yuanzhang, the only successful Northern Expedition in later generations, Emperor Hongwu is actually far less powerful than Emperor Wudi of the Eastern Jin Dynasty. How long has Zhu Yuanzhang been out of Chen? Before the Northern Expedition, Emperor Wu of Song had unified the south and the Jiaoguang area was stable. And Zhu Yuanzhang went to the Northern Expedition immediately after finishing cleaning up Zhang Shicheng, and even split his troops to fight Fujian, Guangdong, Guangxi and Sichuan after the Northern Expedition, and Yunnan and Guizhou after the Northern Expedition.

Zhu Yuanzhang's strategy of blossoming in all directions was a great success because by comparing the forces of the North and the South, the South was indeed an overwhelming advantage at the end of the Yuan Dynasty, and there was no force similar to the Northern Wei Dynasty. The number one enemy, Wang Baobao, was a warlord who was attacked from all sides. He didn't even enter Dadoucheng.

At the end of the Northern Expedition, Zhu Yuanzhang could take out 250,000 troops to crush everything. Huaixi Group is full of talented people, such as Xu Da and Chang Yuchun. Emperor Wu of song just drools, there is no comparability.

Therefore, in real history, there has never been an opportunity that Emperor Wu of Song missed. The so-called "after Emperor Wu destroyed Qin, if he didn't return to Jiankang, or if Liu didn't die early, he could unify the whole country" is simply a myth.