Since May of the first year of Wude (618), Tang Gaozu Li Yuan was proclaimed emperor in Chang'an, and from the day Li Tang founded the country, the Tang Dynasty has faced various crises and challenges. For example, the "Battle of Shallow Water Plain" in July of the first year of Wude (618) was the first challenge encountered by the Li Tang Dynasty; Li Mi's rebellion against the Tang Dynasty in December of the first year of Wude (618) was the second challenge. The loss of Taiyuan in August of the second year of Wude (619) was the third crisis.

Originally, Taiyuan was lost, which was unexpected by everyone. From Tang Gaozu Li Yuan, down to the Tang Dynasty's civil and military ministers, most of them are unbelievable about the fact that Taiyuan was lost. Taiyuan is the land of Longxing of the Li Tang Dynasty and the core of the entire Shanxi region, and its strategic position is particularly important. Therefore, Tang Gaozu Li Yuan attached great importance to the city defense of Taiyuan, in order to prevent Liu Wuzhou from attacking Taiyuan.

According to Li Yuan's own words, Taiyuan "has tens of thousands of strong soldiers and ten years of food support". Around Taiyuan, the Tang Dynasty deployed tens of thousands of elite troops. In addition, in the city of Taiyuan, grain and grass that can be eaten for ten years are hoarded. It can be said that Taiyuan City is described as "solid as gold", which is not an exaggeration at all.

Therefore, even if Liu Wuzhou has Turkic support behind him and is strong, it will not be easy to capture Taiyuan if he wants to. Unfortunately, it backfired. From Liu Wuzhou's invasion of Taiyuan to the final capture of Taiyuan, it took only five months before and after Taiyuan to fall into the hands of Liu Wuzhou. In the process of the loss of Taiyuan, the Tang Dynasty made one mistake after another, made one fatal military mistake after another, and ruined the good situation in vain.

In fact, the main person directly responsible for the loss of Taiyuan was not Li Yuanji, the king of Qi stationed in Taiyuan, nor other Tang army generals, but Tang Gaozu Li Yuan. Throughout the Battle of Taiyuan, Li Yuan made two major mistakes, which eventually led to the loss of Taiyuan City.

First, the selection of generals is inappropriate.

Li Yuan obviously knew the importance of Taiyuan, so he naturally had to be extra cautious about the selection of the main general who guarded Taiyuan. Not to mention how good this person is, at least he should be old and serious. However, Tang Gaozu chose Li Yuanji, who was strong and inward-looking, and did not do much more, to sit in Taiyuan. As a father, doesn't Gaozu know Li Yuanji's temperament? Of course he knew. However, despite this, Li Yuan still let Li Yuanji sit in Taiyuan.

During Li Yuanji's defense of Taiyuan, he acted recklessly and acted hegemonically, causing the resentment of the people in Taiyuan City to boil and the order to be unbalanced. In this regard, there is a big deviation in Li Yuan's handling method. Out of a heart of love for his son, he did not transfer Li Yuanji back to Chang'an after all, but adopted the method of "harmony and mud", and connived and shielded Li Yuanji unprincipledly. As everyone knows, this kind of connivance is actually an extremely irresponsible manifestation of national affairs.

It was precisely because of the connivance and protection of his father Li Yuan that Li Yuanji developed his selfish character. Therefore, when Liu Wu and Zhou's troops came to the city, Li Yuanji did not choose to live and die with Taiyuan, but chose to abandon the army and people in the city and flee from the battle. From this point of view alone, the loss of Taiyuan has a direct relationship with Li Yuan.

Second, the rescue is not effective.

Liu Wuzhou implemented the policy of encroachment and gradually approached Taiyuan. In the face of such a crisis, Tang Gaozu should have actively rushed to the aid of Taiyuan. However, on the issue of rescuing Taiyuan, Li Yuan seemed a little negative. Taiyuan's strategic significance is so important, not to mention that Liu Wuzhou is a difficult opponent. Therefore, the commander in charge of supporting the reinforcements must be an experienced commander who is familiar with the way of using troops.

The Manchu Dynasty was able to complete the task of rushing to aid Taiyuan and defeating Liu Wuzhou, and the only one was Li Shimin, the king of Qin. However, what is puzzling is that Tang Gaozu did not send Li Shimin to lead troops to rescue Taiyuan; Instead, Pei Lin was the main general, leading the army to meet Liu Wuzhou's army and rescue Taiyuan.

Pei Lin didn't understand military affairs at all, and the reason why he took the initiative to ask for help was nothing more than to win military merits and prove himself. Letting Pei Lian, who can't fight, go to support, isn't it tantamount to giving Liu Wu a thousand miles of heads! Sure enough, in the battle of Dusuoyuan, because of Pei Lian's indiscriminate command, the Tang army was defeated. Moreover, the defeat of Du Suoyuan in the first battle completely disintegrated Li Yuanji's psychological defense. Eventually, Li Yuanji abandoned the city and fled, and Taiyuan was captured by Liu Wuzhou.

In any case, Taiyuan has been lost, no matter how much Li Yuan regrets it and how he sighs, it can't change the fact that Taiyuan was lost. However, the development of events is much more than that. After the loss of Taiyuan, Liu Wuzhou and Song Jingang struck while the iron was hot, and by taking advantage of the fact that Taiyuan had just been captured, the troops were in full swing, and they took advantage of the victory to send troops to capture Jinzhou and Longmen one after another. Nearly half of the cities, counties and counties in Shanxi were occupied by Liu Wuzhou.

Moreover, Liu Wuzhou captured Jinzhou and Longmen, and also extended the front to the border of Guanzhong and Hedong. It is equivalent to saying that Liu Wuzhou's army has been deployed on the border of Guanzhong and can advance westward at any time. In this way, Liu Wuzhou basically opened up the military artery for attacking Guanzhong. At this moment, not only is the war situation in Hedong precarious, but even the military situation in the hinterland of Guanzhong is under tremendous pressure.

This is the chain reaction brought about by the loss of Taiyuan, or the evil result. After the loss of Taiyuan, the Tang Dynasty's war situation in Shanxi gradually deteriorated, and its defense line was like the Yellow River bursting its embankment, crushing for thousands of miles. Therefore, in view of the current critical situation, the top priority of the Tang Dynasty is to make every effort to deal with the enemy situation in Hedong, recover Taiyuan as soon as possible, eliminate Liu Wuzhou's forces, and stabilize the situation in Shanxi.

However, the current Hedong battlefield is like a "multi-bone nomi card effect". The loss of Taiyuan opened the prelude to the rout of the Tang army in Hedong. After that, the successive losses of Jinzhou and Longmen made the situation of the Tang Dynasty in the Hedong battlefield extremely unfavorable. Therefore, the Tang Dynasty was obviously a little powerless for Liu Wuzhou's aggression that ravaged Shanxi. Before the Tang Dynasty began to recover Taiyuan, Liu Wuzhou launched another attack.

Since the capture of Taiyuan, Liu Wuzhou has entered the peak period of his career. His sphere of influence has also been greatly expanded. Most of Shanxi is in the hands of Liu Wuzhou. With the continuous expansion of the territory, Liu Wuzhou's ambition has become more and more inflated. Next, Liu Wuzhou's goal is to annex the whole of Shanxi. Then, with Shanxi as the foundation, as the base camp for the world, and compete with the world's heroes in the Central Plains.

Soon after capturing Jinzhou and Longmen, Liu Wuzhou launched a new round of attacks against the Tang Dynasty. In October of the second year of Wude (619), less than two months after capturing Jinzhou and Longmen, Liu Wuzhou and Song Jingang waved their troops to attack Huzhou (now Yicheng, Shanxi). As a result, Huzhou immediately fell. It can be seen that at this time, Liu Wuzhou's soldiers were prosperous, and there was no one to stop them, and they were basically invincible all over Shanxi, and they couldn't be stopped at all.

From August of the second year of Wude (619), the situation of the Tang Dynasty in the Hedong battlefield became more and more difficult to support. Liu Wuzhou first occupied Taiyuan, and then took advantage of the victory to send troops to capture Jinzhou and Longmen. Not long after, in October, Liu Wuzhou and Song Jingang used troops again and quickly captured Huzhou. It can be said that the battle situation in Shanxi has reached a very dangerous situation. If the Tang Dynasty does not do anything more, Liu Wuzhou's occupation of the entire territory of Shanxi will only be a matter of an overnight matter.

Taking 10,000 steps back, if the Tang Dynasty lost Shanxi, it would not only abandon its hometown in Hedong and lose a strategic place; Moreover, the loss of Shanxi also means the loss of people's hearts and morale. At that time, the Tang Dynasty will inevitably fall apart, and there will be no place for it in the turbulent times. Therefore, even if the Tang Dynasty paid a big price, it still had to block Liu Wuzhou and pacify the war in Hedong. The question is, who to send to stop Liu Wuzhou?

At this time, before the fall of Taiyuan, Li Yuanji, the king of Qi, abandoned the city and fled, and now he has fled back to Chang'an. At present, only Pei Lian, who is the head of the Jinzhou Road march, is still struggling to support himself in Shanxi. As the highest military and political governor of the Tang Dynasty in Shanxi, in terms of the current situation, in terms of official rank, only Pei Lin can pick up this burden. However, Pei Lian's two moves could only make the Shanxi battle situation more and more chaotic.

As mentioned above, Liu Wu and Zhou's troops forced Taiyuan, and Tang Gaozu took Pei Lin as the head of the Jinzhou Road march and ordered him to lead his troops to aid Taiyuan. However, Pei Lin didn't understand military affairs at all. As a result, in the first battle of Dusuoyuan, due to his command errors, the Tang army was defeated, which directly led to the loss of Taiyuan.

When the Tang army was defeated by Suoyuan, at that time, the main force was completely killed and wounded, and the troops were completely out of control. Faced with such a chaotic situation, Pei Lian, as the commander-in-chief, not only did not stop the rout, but hurriedly fled the battlefield. Pei Lin ran wildly for a day and a night, and finally fled to Jinju.

Originally, I thought that escaping to Jinju would be able to take a breath for a while. However, Pei Lin didn't expect that Liu Wuzhou's speed was too fast. Soon after the occupation of Taiyuan, Liu Wu and Zhou Bingfeng pointed out that they took Jinzhou directly. The defenders of Jinju fought hard for six days and six nights, but unfortunately lost. After that, Liu Wuzhou was invincible and broke through the dragon gate. Since the fall of Taiyuan, the Tang army has been defeated and retreated in the Hedong battlefield, losing its division and losing ground. Among them, a large part of the reason is Pei Lian's retreat and inaction.

Pei Lian's army was defeated and humiliated the country, causing the Tang Dynasty to suffer huge losses. In fact, Pei Lin is not shameless. Therefore, after retreating to Jinju, Pei Lin took the initiative to plead guilty. However, instead of punishing him, Tang Gaozu Li Yuan was kind and relieved, and continued to entrust him with important tasks and let him pacify Hedong.

According to common sense, the emperor is so gracious, Pei Lin himself will burn high incense, and he should know how to be grateful. Unexpectedly, Pei Lian's next behavior disappointed everyone. Even Tang Gaozu, who had always trusted him incomparably, couldn't keep him anymore and was extremely disappointed in him.

What's going on? It is still necessary to return to the war in Hedong. In October of the second year of Wude (619), Liu Wuzhou and Song Jingang captured Huzhou, and the foundation of the Tang Dynasty in his hometown in Hedong was in jeopardy. As the actual military and political chief in Shanxi, resisting Liu Wuzhou's task naturally fell to Pei Lian.

It's still an old problem, Pei Lin and Wenchen led the troops, plus he was more cowardly and mediocre, and he had no talent to command the troops at all. In the face of the strong momentum of Liu Wuzhou's army, Pei Lin was helpless. He didn't dare to take the initiative to attack and fight Liu Wuzhou in a decisive battle. Because of the battle of Dusuoyuan, Pei Lin suffered a lot, and he was scared.

As a result, Pei Lin had no choice but to retreat into the camp and adopt the tactics of clearing the wilderness. However, it was this kind of hard wall and clear wilderness that caused Pei Lin to get into big trouble and made him the target of public criticism. Moreover, his strong walls and clear fields led to the development of the Hedong war situation in the Tang Dynasty, and he once again fell into passivity.

It must be clear that Pei Lin is not Li Shimin. At the beginning, in the battle of the Western Front, Li Shimin defeated Xue Rengao in one fell swoop and eliminated the Xue regime of the Western Qin Dynasty by virtue of the tired enemy strategy of fortifying the wall and clearing the wilderness. Pei Lin did not have Li Shimin's military talent, and his tactics of clearing the wilderness were actually a kind of suicidal practice of cutting flesh to mend sores and drinking water to quench thirst.

In order to have a long-term confrontation with Liu Wuzhou and fight a protracted war, Pei Lin ordered the people of Yu and Tai Erzhou in the southwest of Jin Province to be forcibly moved into the castle. At the same time, Pei Lin also burned all the savings, grain fields, and property of these people, leaving Liu Wuzhou not a grain or an inch of land:

Liu Wuzhou attacked Song Jingang and trapped it, and the army was very sharp. Pei is cowardly, there is no strategy of generals, only Luo Yi is sent to make Luo Yi, Quyu and Tai Erzhou accept people into the castle and burn their accumulation. (Information Governance Guide)

Although Pei Lian's move, to a certain extent, played a role in strengthening the wall and clearing the wilderness, and successfully realized the economic blockade of Liu Wuzhou. However, on the other hand, it has also greatly damaged the vital interests of the common people and offended the common people miserably. In this way, it caused a commotion among the people, and they hated Pei Lin to the core. According to the record of "Zizhi Tongjian", "the people are disturbed and complained, and they all think of thieves".

Eventually, this turmoil became a reality. Soon, a large-scale mutiny broke out in Xia County. Lu Chongmao, a person from Xia County, gathered a group of chaotic people, raised an army, and proclaimed himself the King of Wei, echoing Liu Wuzhou from afar. In this way, Liu Wuzhou and Lu Chongmao formed a pincer attack on Pei Lian.

Pei Lin was self-defeating, originally, beating a Liu Wuzhou was enough for him. Now, a wave of Lu Chongmao's rogue suddenly appeared. At this time, Pei Lin was really a little difficult to ride a tiger, and he was attacked by the enemy on his back and abdomen, and he had to face two groups of enemy troops at once.

Therefore, Pei Lin hurriedly turned his gun and went all out to recruit Lu Chongmao and his followers. In other words, Pei Lin is a military mediocrity, and Liu Wuzhou can't beat him, and he can't even beat this temporarily organized peasant army. Pei Lin crusaded against Lu Chongmao, but was defeated.

At the beginning of the war, Pei Lin was unable to command, resulting in repeated defeats and huge casualties for the Tang army. Later, it was because of Pei Lian's stupid actions that the rogues in Shanxi swarmed and became one with Liu Wuzhou. The development of the military situation in the Hedong battlefield became more and more unfavorable to the Li Tang Dynasty.

The battle was fought like this, and the war in Shanxi was so embarrassed. Obviously, Pei Lin is to blame. Due to his incompetence, the Tang army not only made no achievements in the battle with Liu Wuzhou, but lost its troops and lost its territory. Therefore, Pei Lin is no longer suitable to continue to stay on the front line and command the troops. After weighing, Tang Gaozu transferred Pei Lin away from the front line and recruited him into the court. Seeing Pei Lian, Li Yuan showed no mercy, and went up to count the numbers:

At the beginning of the righteous act, the public has the honor of wings, and the official is also extremely powerful. Before resisting Wu Zhou, the strength of the army was enough to break the enemy, resulting in this defeat, not only ashamed? ("Old Tang Book: The Biography of Pei Lian")

This time, Li Yuan did not protect Pei Lian, and in order to calm the dissatisfaction of the government and the opposition, Pei Lin was imprisoned. However, Tang Gaozu was just putting on a show. Soon after, Pei Lin was re-released. Moreover, Li Yuan's attitude towards him has not changed, and he is more favored than before.

For Pei Lian's repeated defeats, incompetence and cowardice, Tang Gaozu Li Yuan not only did not punish him, but repeatedly favored and connived. Such an approach naturally aroused the dissatisfaction of many ministers of the DPRK and China. They felt that Pei Lone, such a talented straw bag, was in the position of the Tang Dynasty's Zaifu and was trusted by the emperor. Li Yuan's unfair handling laid a deep hidden danger for the contradictions between officials within the Tang Dynasty!

Although Gaozu was partial to Pei Lone, Li Yuan did not let Pei Lone return to the front line again, which was a wise move. Li Yuan knew that the battle in Hedong was a great matter, and if he continued to send Pei Lin to the front line to take charge of the troops, it would only make the battle situation in Shanxi worse and worse.

Now that Pei Lin was transferred from the front line and recalled to Chang'an, there was a vacancy in the post of commander of the Shanxi battlefield in the Tang Dynasty. For the sake of today, the only way to do this is to redeploy troops. So, who should be sent to replace Pei Lian's vacancy? This time, Tang Gaozu sent a number of generals and several armies to aid Shanxi to fight against Liu Wuzhou.

At the same time that Pei Lin was transferred from the front line, Tang Gaozu Li Yuan ordered Li Xiaoji, the king of Yong'an, Dugu Huaien, the secretary of the Ministry of Industry, Yu Yun, the governor of Shaanzhou, and Tang Jian, the squire of the internal history, to lead the army, open the front line in the east of the river, and resist Liu Wuzhou. It can be seen that Li Yuan has made a bloody investment and wants to fight Liu Wuzhou to the death.

However, at this time, the battle situation in Hedong had deteriorated to the extreme, which was beyond Li Yuan's expectations. At that time, a remnant force of the Sui Dynasty, the headquarters of Wang Xing, occupied Pusaka, and the Tang Dynasty was repeatedly attacked. Not only that, Wang Xingben also echoed Liu Wu and Zhou Yao, and the two sides formed an alliance to flank Li Tang.

Wang Xingben's occupation of Pusaka and collusion with Liu Wuzhou was tantamount to adding fuel to the fire for the development of the war in Shanxi. What does this mean? The defense line of the Yellow River crossing of the Li Tang Dynasty was directly exposed to Liu Wuzhou's iron hooves, and the Guanzhong area also became precarious.

If Liu Wuzhou led his army through Pusaka, he would cross the Yellow River from here. At that time, it will not only occupy the entire territory of Shanxi, but also threaten the hinterland of Guanzhong, and the troops will come to Chang'an City. Therefore, at this moment, the situation is already extremely critical, and the flames of war are burning all over Shanxi, and there is a great tendency to spread to Guanzhong.

Liu Wuzhou and Wang Xingben formed an alliance, the defense line of the Yellow River crossing was opened, and the east of the river was in danger. As soon as the news came out, the people in Guanzhong were panicked and shocked, just like when Xue Ju invaded Jingzhou. Faced with such a predicament, Tang Gaozu Li Yuan's heart began to waver.

After all, Li Yuan is the emperor of the Tang Dynasty, and in his opinion, although Taiyuan is important, it is not as important as the entire Tang Dynasty. If this battle continues like this, I am afraid that the Tang Dynasty will not be able to withstand it. Don't go to the end, Shanxi didn't keep it, and even Guanzhong was in danger. Instead of continuing to fight Liu Wuzhou in Shanxi, it is better to preserve strength in time, accumulate strength, and wait until the time is ripe in the future to fight a decisive battle with Liu Wuzhou.

Thinking of this, Tang Gaozu came up with a negative and conservative thought. So, Li Yuan personally wrote a note and prepared to send it to the Hedong front. In this handwritten edict, Tang Gaozu Li Yuan briefly expounded his strategic intentions:

The thief is like this, it is difficult to compete with him, it is advisable to abandon the east of the river and guard the west of the country. (Information Governance Guide)

All in all, Li Yuan's strategy, four words: shrink the front. In the current military situation, Liu Wuzhou was aggressive, sweeping most of Shanxi, while the Tang army was defeated again and again. In view of the danger of the rout in Hedong, Tang Gaozu Li Yuan made a difficult decision to temporarily abandon Taiyuan, abandon the east of the Yellow River, withdraw the main force of the Tang army to Guanzhong, and make every effort to hold Guanxi. As long as Guanzhong is still in hand, there is still a lot to be done to recover Taiyuan in the future.

Just imagine, once Tang Gaozu's hand edict is really sent to the front line, the consequences will be unimaginable. It is estimated that the great cause of the unification of the Tang Dynasty is bound to come to an abrupt end, and even the entire country will collapse. Fortunately, at the critical moment, someone took the initiative to stand up and stop Li Yuan's wrong decision made due to hot-headedness, and corrected Tang Gaozu's strategic mistake. Who is this person? Li Shimin, King of Qin.

Li Shimin is not an ordinary person, he has been in battle for a long time. This is an outstanding military commander who fought all the way in the bloody war, with rich battlefield experience and outstanding military talent. With a keen strategic vision, he accurately judged that Taiyuan must not give up easily.

You must know that Li Shimin followed his father Li Yuan all the way, from Taiyuan to fight against the Sui, until he finally conquered Chang'an. Therefore, of course, Li Shimin knows the importance of Taiyuan. If the Tang Dynasty took the initiative to abandon Taiyuan and the east of the Yellow River, it would be equivalent to giving up Shanxi. If Shanxi is lost, the Tang Dynasty will completely lose the foundation of the country and the morale of the people in the world. When that time comes, the Li Tang Dynasty will definitely collapse from now on.

Moreover, even if the Tang Dynasty took the initiative to abandon the east of the Yellow River, shrink the front, withdraw the army to Guanzhong, and stick to Guanxi; Will Liu Wuzhou really stop there? Of course not. This can only fuel Liu Wuzhou's arrogance, the so-called "desire is difficult to fill", since Liu Wuzhou dared to launch an all-out attack on Shanxi, it shows that his ambition is not small. After occupying Shanxi, Liu Wuzhou will definitely stretch out his claws to the Guanzhong region.

At that time, Liu Wuzhou and Song Jingang led the army to break through the Yellow River defense line and go deep into the hinterland of Guanzhong, and Chang'an was in danger! Therefore, even in order to defend Chang'an, Taiyuan City cannot be easily given up. Therefore, it is imperative to recover Taiyuan. As long as Taiyuan is in the hands of Liu Wuzhou for a day, it will always be a knife hanging over the head of Datang.

Tang Gaozu Li Yuan was ready to shrink the front and abandon Taiyuan, which was obviously contrary to Li Shimin's idea. Regarding his father Li Yuan's negative intention to conservatively avoid the war, Li Shimin naturally could not sit idly by, and must try his best to prevent it so that his father could change his strategy. So, Li Shimin took the initiative to go to Tang Gaozu and explained the strategic significance of Taiyuan to his father in detail. At the same time, Li Shimin also took the initiative to ask Ying to go on the expedition, willing to lead 30,000 elite soldiers, recover Taiyuan, and eliminate Liu Wuzhou:

Taiyuan, the foundation of the royal industry, the foundation of the country; Hedong is solid, and Jingyi is funded, if he abandons it, the ministers are resentful. I hope that the fake ministers will have 30,000 elite soldiers, and they will hope to pacify Wu Zhou and recover Fen and Jin. (Information Governance Guide)

After receiving Li Shimin's above table, Tang Gaozu Li Yuan woke up like a dream and instantly opened the "brain circuit". If you think about it carefully, my previous idea of abandoning the east of the Yellow River and sticking to the west of the Kansai is indeed a bit negative. Once Taiyuan is abandoned, not only Hedong will not be protected, but Chang'an will also be very dangerous. It seems that Li Shimin still has strategic vision and unique insights, and in the end he is still the god of the Tang Dynasty who has been on the battlefield for a long time and uses soldiers like gods.

In this table, Li Shimin also recommended himself, took the initiative to ask for help, and made a military order, only need to lead 30,000 elite soldiers, he can recover Taiyuan and eliminate Liu Wuzhou. Tang Gaozu Li Yuan's heart is like a mirror, he knows that Li Shimin is not Li Yuanji, Pei Lin and the like, he is an unborn military genius. The reason why he swore so much and laid such a package ticket was by no means a mouthful, he must have already made up his mind and had a good plan to break the enemy.

What's more, the current war situation in Shanxi has become a mess. Since Liu Wuzhou Xingbing started the war with the Tang Dynasty, the Tang army has continued to lose, successively losing Taiyuan, Jinzhou, Longmen, Huzhou and other places, and nearly half of the territory of Shanxi has been occupied by Liu Wuzhou. Moreover, because Pei Lin pursued the wrong policy of clearing the wilderness, he provoked a popular uprising, which caused the Shanxi Liukou to rise up and colluded with Liu Wuzhou, which made the crisis in Hedong even worse.

The Tang army was defeated again and again, and the rout of Hedong seemed to be a foregone conclusion, and Li Yuan had no one to use in his hands. It can be said that the current Shanxi is a hot potato, and no matter who takes over, it will be a test of life and death. Looking at the government and the opposition, there is only one person who has the ability and strength to save the defeat in Hedong and defeat Liu Wuzhou, and that is Li Shimin, the king of Qin. This is the last trump card in the hands of Tang Gaozu Li Yuan.

After the great victory on the Western Front a year ago, as well as the glorious achievements of eliminating Western Qin and recovering Longxi, everyone appreciated Li Shimin's formidable power. With the sharp blade of the pacification of the Western Qin Campaign, this time, the decisive battle with Liu Wuzhou must be a familiar road for Li Shimin.

When the country was in danger, Tang Gaozu Li Yuan decided to use Li Shimin and sent him to lead the army to eliminate Liu Wuzhou. Therefore, Tang Gaozu issued a pre-war mobilization, "so he sent the soldiers in the pass to benefit the people of the world, so that the attack on Wu Zhou." Li Yuan handed over almost all the troops in the Guanzhong area to Li Shimin's unified command, led by Li Shimin, and crusaded against Liu Wuzhou. This is all the family background of the Tang Dynasty in Guanzhong, and Li Yuan gave the command of these soldiers and horses to Li Shimin, the king of Qin.

On October 20 of the second year of Wude (619), Li Shimin led the main force of the Tang army to officially set out on the expedition and went to the Hedong front to defeat Liu Wuzhou. On the day of the army's departure, Tang Gaozu Li Yuan personally saw him off and sent it to Huayin Changchun Palace. In this way, under the extremely unfavorable situation of the war situation in Hedong, Li Shimin was ordered to lead the army to attack. The entire Li Tang Dynasty pinned all the main hopes of the Hedong battlefield on Li Shimin, the king of Qin.

It should be said that Tang Gaozu Li Yuan was in battle to select generals and ordered Li Shimin to go to Liu Wuzhou. Such a move made the Hedong battlefield, which was originally in a dead end, begin to gradually take a turn for the better. After the Tang Dynasty suffered a series of military setbacks, due to the sudden rise of Li Shimin, the dawn of victory is slowly sprouting!

Li Shimin personally led the main force of the Tang Army to advance to the Hedong front, and for Liu Wuzhou, his good days were about to come to an end. Since Liu Wuzhou's invasion of Taiyuan, he has been lucky, and victories have come one after another. However, life is often fair. A person may be lucky for a while, but he may not be lucky for a lifetime. Sure enough, the arrival of Li Shimin allowed Liu Wuzhou to meet the strongest opponent since his rise.

It was also the arrival of Li Shimin that gave Liu Wuzhou a taste of failure for the first time, and he was still defeated. In just six months, Liu Wuzhou, who once dominated Shanxi, was defeated by Li Shimin's thunderous blow. All previous military achievements have also come to naught. And Liu Wuzhou himself finally ended up in a different place and died in a foreign land.

So, how did Li Shimin lead the soldiers of the Tang Army in just six months, destroy the decay, turn the decay into magic, and reverse the unfavorable situation of the Tang Dynasty in the Hedong battlefield in one fell swoop? What kind of tactics and tactics did this world-famous god of war use to give Liu Wuzhou and Song Jingang a thunderous blow, causing them to quickly fall apart, creating a breathtaking miracle of war, and completing a seemingly impossible mission?

Moreover, in the process of Li Shimin's conquest of Hedong and the elimination of Liu Wuzhou and Song Jingang, he also had an unexpected gain. This unexpected gain is that Li Shimin subdued a brave and warlike tiger general. It is precisely because of the surrender of this tiger general to the Tang Army that Li Shimin's Qinwang Group can be described as a tiger with wings. Since then, this fierce general of the three armies has loyally followed Li Shimin, and even saved Li Shimin's life on the battlefield, making great contributions to the Tang Dynasty.

Back then, in that gunsmoke-filled Hedong battlefield, on the ancient land of the Three Jin Dynasty, what kind of thrilling battlefield legend was staged? How did Liu Wuzhou and Song Jingang, who were once arrogant, be easily defeated by Li Shimin with a flick of their fingers until they were completely destroyed? At the same time, what was the important strategic significance of the elimination of Liu Wuzhou's regime for the unification of the Tang Dynasty?