From August to September of the thirteenth year of the Great Cause (617), Li Yuan and his son won the "Battle of Huoyi" after unremitting struggle. After the victory in the Battle of Huoyi, Li Yuan took the opportunity to advance all the way west, and the momentum was unstoppable, and soon formed an encirclement of Hedong County, the last line of defense of the Sui Dynasty.

At the beginning, when Li Yuan raised his army, in order to restrain Li Yuan's advance to Guanzhong, Yang Yu, the acting king, specially sent Song Laosheng to lead an army of 20,000 to defend Huoyi; Qu Tutong led tens of thousands of elite Xiaoguo to defend Hedong County. Now, Huo Yi has been broken and Song Laosheng has been killed. Li Yuan's current enemy, his last enemy, is only Qu Tutong who is stationed in Hedong County.

However, Qu Tutong is not easy to deal with, this is the only remaining famous general of the Sui Dynasty. Regarding the characteristics of Qu Tutong's use of troops, there is such a brief description in the "Old Tang Book: Qu Tutong's Biography": "Tong must be heavy in every direction, although it is not a big gram, there is no defeat." "It is enough to see Qu Tutong's strength. Moreover, Qu Tutong is good at defending the city, if he storms Hedong County, won't he just hit Qu Tutong's muzzle! So, how should Li Yuan solve such a difficult opponent as Qu Tutong?

Qu Tutong knows very well that Li Yuan is not what it used to be. After the "Battle of Huoyi", Li Yuan's military strength was greatly enhanced, and he should have gathered at least 100,000 people under his command. And Qu Tutong's current situation is very difficult, although he has tens of thousands of elite fruits in his hands, but he has a fatal shortcoming: morale has been dispersed. After a calm analysis and an in-depth analysis of Qu Tutong's personality, Li Yuan also came to such a conclusion:

Qu Tutong has a lot of elite soldiers, and they are more than 50 miles away, and they dare not come to fight, which shows that they are not used for it. However, he was afraid of sin and did not dare not come out. If the Ziji River strikes Qing and others, then I will attack the east of the river, and I will not be able to defend it; If the whole army defends the city, then the Qing and others will cut off its river beams; Strangled his throat in front and pushed his back in the back, and if he didn't go, he would be captured.

Therefore, in such a situation, although Qu Tutong is good at defending the city, his morale has been dissipated, even if he is a famous general in the world, he may not be able to turn the tide. Therefore, Qu Tutong was thinking about it, and was ready to take the initiative to attack before Li Yuan's main force besieged the city, and hit Li Yuan by surprise.

In September, Qu Tutong sent Huyalang general Sang Xianhe, leading thousands of Xiaoguo elites, to attack the camp of the rebel army at night. At first, the rebels were unprepared and were taken by surprise. But soon, the rebels pulled back a game. Sun Hua, Shi Daqi and other generals of the rebel army led the rangers to attack the Sui army from the flank and rear, breaking the Sui army, and the Sui army was defeated and retreated to Hedong County. Therefore, Qu Tutong's first planned active attack ended in failure.

On the tenth day of the ninth month, Li Yuan led all the troops of the righteous army to besiege Hedong County. As a result, Li Yuan commanded a large army to attack Hedong County. However, due to the strong city of Hedong County and Qu Tutong's ability to defend the city, the rebel army was frustrated in attacking the city, and it was difficult to capture Hedong County in a short time.

According to the record of "Datang Entrepreneurship and Living Note", the rebel army attacked Hedong County, and this battle was extremely hard. The defense of Hedong City is strong, easy to defend and difficult to attack. Therefore, Li Yuan had to adopt the tactics of crowds and forcibly attack Hedong County, trying to capture Hedong County by attacking in turns.

The soldiers of the rebel army continued to attack the fortifications, and finally, they tore a hole in the defense of Hedong County. On the southern city wall, more than 1,000 volunteer soldiers climbed the city wall and controlled the southern city. Seeing that victory was in sight, he never expected that Qu Tutong was worthy of being a famous general, and immediately commanded the Sui army to counterattack the gap in Nancheng, which was controlled by the rebel army. Soon, the more than 1,000 volunteer troops were obviously unable to support it. Moreover, at this time, the heavy rain did not stop, and Li Yuan had to order the army to retreat, and the siege ended in failure:

On the east plain of the emperor's city, looking at the city in the west, Qu Tuguo did not dare to send troops, closed the door and defended himself, the city was very high, and it was not easy to attack. Emperor Guan righteous people and other chronicles, try to send Dengzhi. There are more than 1,000 people in the south, and they should go up from time to time. It was raining very much, and the emperor ordered the spinning division. Since the soldiers had to go up to the city, they went down from time to time.

However, at this time, Li Yuan had other plans in his heart. Since Hedong County is not easy to fight, why not simply stop fighting, bypass Hedong County, and go straight to Chang'an. It should be said that Li Yuan's idea of bypassing Hedong County and taking Chang'an directly is undoubtedly a good move. Instead of fighting a protracted war with Qu Tutong in Hedong County, it is better to take Chang'an by surprise. Li Yuan understood that as long as Chang'an was captured, Qu Tutong would be defeated without a fight.

However, bypassing Hedong County and taking Chang'an directly is also a risky move, and if you are not careful, you will lose all your efforts. Li Yuan couldn't make up his mind for a while, so he convened another military meeting to consult everyone's opinions. At this military meeting, Pei Lin believed that Hedong County should be captured first to relieve the worries of attacking Chang'an. Pei Lian's idea was that if the rebel army marched west to Chang'an, in case Qu Tutong sent troops from Hedong County and attacked the defenders of Chang'an before and after, then it would inevitably make the rebel army fall into a situation where the enemy was on the back and the head and tail were difficult to take care of:

Qu Tutong embraces the public, with a strong city, I give up it, if the attack on Chang'an is not restrained, retreat to the heel of Hedong, the belly and back of the enemy, this dangerous road also. It is better to go east of the river first, and then go west. Chang'an relies on communication for assistance, and if it fails, Chang'an will be broken! (Information Governance Guide)

It should be said that Pei Lian's worries are not unreasonable. However, Li Shimin did not see it that way, and he suggested to his father Li Yuan:

Otherwise. The soldiers are fast, the power of my seat is tired, the people who are attached to the people, the drums go west, the people of Chang'an are shocked by the wind, they are not as wise as they are strategic, they are not brave enough to break, and they are taken as if they are vibrating the ears of the leaves. If I drown myself under the fortified city, Peter will plan to repair and prepare for me, and spend the sun and the moon, and the hearts of the people will be depressed, and the great things will be done. And the swarm in Guanzhong does not belong, so it is necessary to recruit it as soon as possible. Qu Tutong defends his ears and is not a cause for concern.

Obviously, Li Shimin's suggestion coincided with Li Yuan's idea of taking Chang'an directly. In Li Shimin's view, the soldiers are fast. If you still hold on to Qu Tutong under the city of Hedong County, it will provide sufficient preparation time for the direction of Chang'an, and when the time comes, you will encounter many difficulties in attacking Chang'an.

However, once you bypass Hedong County, you will go straight to Chang'an. Acting King Yang Yu would never have thought that we would make such a dangerous move, and he would definitely be defenseless. When the time comes, we will suddenly come to the city of Chang'an, which will surprise the Sui army, and it will definitely create an unexpected effect and complete its work in one battle.

Li Shimin's move to directly take Chang'an is a strange move and a dangerous move. Bypass Hedong County and take Chang'an directly, so that you can settle the situation in one battle. Li Shimin has always liked to make dangerous moves in war, and he does not play cards according to common sense, but he can always win by surprise.

The opinions of the two factions, Pei Lin suggested attacking Hedong County first, and then taking Chang'an; Li Shimin suggested bypassing Hedong County and taking Chang'an directly. How should Li Yuan choose? This time, Li Yuan chose a compromise ruling. On the one hand, he asked his eldest son Li Jiancheng and Liu Wenjing and others to lead the Left Route Army, garrison Yongfengcang, garrison Tongguan, confront Qu Tutong, contain tens of thousands of Sui troops in Hedong County, and at the same time, also use it to guard against Li Mi and Wang Shichong in Luoyang; On the other hand, Li Yuan ordered his second son, Li Shimin, to lead the right army to rush forward and take Chang'an.

On September 12, Li Yuan led the main force of troops and horses, crossed the Yellow River, and stationed in Chaoyi (now southeast of Dali, Shaanxi), and officially entered the Guanzhong area. As soon as Li Yuan entered Guanzhong, the people of the entire Guanzhong area cheered, and the "Zizhi Tongjian" recorded, "The people of Guanzhong are like the city."

When Li Yuan entered Guanzhong, it can be said that he completely bypassed Hedong County and went straight to Chang'an. Someone can't sit still, who? Flexoto. Originally, Qu Tutong's task was to hold Hedong County and block the westward advance of Li Yuan's army. Unexpectedly, Li Yuan took a sidestep with his sword, bypassed Hedong County, and went straight to Chang'an. Qu Tutong understood that once Li Yuan captured Chang'an, no matter how tenacious he fought in Hedong County, it would be in vain. Therefore, Qu Tutong had to stop Li Yuan's westward advance.

So, Qu Tutong asked Ying Yanglang to lead Yaojun Su to lead the east of the river to defend it, guard Pu Han, and lead tens of thousands of troops to go out of Lantian from Wuguan and return to the division to rescue Chang'an. Li Yuan had long guessed that Qu Tutong would rescue Chang'an, so he asked Li Jiancheng's Left Route Army to hold Tongguan in advance. Sure enough, on the way to rescue Chang'an, Qu Tutong was intercepted by Liu Wenjing's department and could not move forward. Therefore, Qu Tutong was firmly tied to Tongguan by Li Jiancheng.

Let's take a look at the situation in Guanzhong. It can be said that the current situation in Guanzhong is very good, almost all the Li clan relatives in the Guanzhong area have all raised troops to respond to Li Yuan, and Guanzhong is full of the banner of the Li family.

As mentioned above, Li Yuan's soldiers were divided into two routes, one was led by Li Jiancheng to lead the left route army, stationed at Tongguan, and contained Qu Tutong; One route was led by Li Shimin on the right route, which rushed forward and took Chang'an. The task of containing Qu Tutong has been completed by Li Jiancheng. So, what about Li Shimin's situation?

Li Shimin personally led tens of thousands of troops on the right route, marching rapidly day and night, advancing at full speed, and entering the Guanzhong area one step ahead. So, what is Li Shimin's progress in Guanzhong? Four words: very smooth. Because, at this time in the Guanzhong area, the "Women's Army" led by his sister Princess Pingyang has stabilized the situation in Guanzhong for him.

At the beginning, when Li Yuan decided to raise troops in Jinyang, he recalled the sons and daughters of the Li family scattered all over the country. Li Yuan's son-in-law Chai Shao had no choice but to separate from his wife Princess Pingyang and return to Taiyuan alone. After Chai Shao set off to return to Taiyuan, Princess Pingyang immediately scattered her family wealth, and in less than a year, she pulled up a famous team, the "Women's Army", to clear the military obstacles in the customs for her father Li Yuan. Now, Princess Pingyang's "Women's Army" has helped her younger brother Li Shimin a lot.

Li Shimin led the Right Route Army, and after entering Guanzhong, he was quickly received by his sister Princess Pingyang and other Li clan relatives, and successfully garrisoned the army in Jingyang. Jingyang is the gateway to Chang'an, and Li Shimin's garrison in Jingyang has undoubtedly touched Chang'an City, which is close at hand.

Moreover, wherever Li Shimin went, officials, people, and robbers from all over the country returned to the stream, "wherever the people came, the officials and thieves returned to the stream." Li Shimin recruited all these heroes as his subordinates. At this time, Li Shimin's command had gathered 90,000 troops and nearly 100,000 male soldiers. Soon, Princess Pingyang led 10,000 "women's army" and Li Shimin's 90,000 right route army to successfully join forces in Weibei. The two sisters and brothers joined forces and waited for the arrival of their father Li Yuan.

Li Yuan was very happy to see that Li Shimin had completed the task so well in Jingluzhong. On September 22, Li Yuan crossed Weishui from Linjin and went to Yongfeng to comfort the army, and at the same time, opened a warehouse to release grain and provide relief to the hungry. After completing all this, Li Yuan's next step was to march to the hinterland of Guanzhong on a large scale.

Li Yuan ordered the generals Liu Hongji and Yin Kaishan to lead 60,000 troops, to the west to help the wind, cross Weishui in the south, and seize the ruins of Chang'an City in the Han Dynasty (northwest of present-day Xi'an). Li Shimin led the Right Route Army and rushed to Sizhuyuan (now Zhou to the southeast). In addition, Li Yuan also asked the newly attached local armed forces Li Zhongwen, He Panren, Xiang Shanzhi and others to follow Li Shimin and garrison Acheng, with a total strength of 130,000 horses, strict military discipline, and no crime in the autumn.

Soon, Li Shimin sent a messenger to report to Li Yuan and agreed on a time to attack Chang'an. At this time, Li Yuan believed that Qu Tutong was no longer a concern and could not pose any threat to himself. So, Li Yuan ordered Li Jiancheng to immediately lead the elite from Xinfeng to Changle Palace, and quickly moved closer to Chang'an; Li Shimin led his army to the north and stationed at the ruins of Chang'an City in the Han Dynasty, forming an encirclement posture against Chang'an from the northwest.

In early October, Li Yuan arrived in Chang'an and set up camp at the east gate of Chang'an. The rest of the armies and departments were also assembled in place one after another, forming an iron bucket-like encirclement of Chang'an. At this time, Li Yuan, he no longer had 30,000 meager men and horses in his hands when Jinyang raised his army, but a full army of more than 200,000 people, which can be described as strong and strong, and he no longer has to be afraid.

Li Yuan's 200,000 troops approached the city, and the people in Chang'an City were panicked at this time. Before Emperor Yang of Sui went to Jiangdu three times, he once asked Yang Yu, the acting king, to stay in Chang'an, and Yang Tong, the king of Yue, to stay in Luoyang. However, in view of the fact that the acting king Yang Yu was too young, Emperor Yang of Sui deliberately asked the criminal department Shangshu, Jingzhao Neishi, and the old minister Wei Wensheng to assist the acting king Yang Yu.

Wei Wensheng is also one of the few remaining veterans of the Sui Dynasty, who once participated in the suppression of Yang Xuangan's rebellion, and is an experienced veteran of the battlefield. But at this time, Wei Wensheng was seventy-seven years old. After hearing the news of Li Yuan's march to Chang'an, Wei Wensheng became ill and could not afford to fall ill, so he recuperated at home and no longer participated in political affairs.

Wei Wensheng was seriously ill, and Yang Yu, the acting king, was young. Therefore, there are only two people in charge of the overall situation in Chang'an City: General Zuo Yiwei Yin Shishi and Jingzhao County Cheng Guyi.

For these two people, especially the Yin World Master, Li Yuan can be said to grit his teeth with hatred. Why? Because after Li Yuan raised troops in Taiyuan, in order to intimidate the Li clan, Yin Shishi not only killed Li Yuan's relatives who stayed in Chang'an, but also dug up the ancestral grave of the Li family. Because of this, after Li Yuan captured Chang'an, the Yin Shishi Chengpo was killed, and Gu Yi was sentenced to death. For these two people, Li Yuan was unwilling to forgive them no matter what.

Although Li Yuan had surrounded Chang'an City at this time, he already had an absolute military advantage. As long as Li Yuan gives an order, the 200,000-strong army will launch a general attack on Chang'an City, and there is no suspense at all about taking Chang'an. However, until this moment, Li Yuan was not in a hurry to attack the city, he still hoped that he could occupy Chang'an without blood. As a result, Li Yuan began to launch a political offensive.

What kind of political offensive did Li Yuan launch? First of all, Li Yuan issued three orders and five reaffirmations, strict military discipline, according to the record of "Zizhi Tongjian", "Yuan ordered each according to the barrier, not to enter the village to invade violence." Li Yuan stipulated that all the soldiers of the righteous army were not allowed to leave the barracks without permission, and they were not allowed to enter the nearby villages to harass the peasants and rob the people's property. The reason why this military order was issued was very simple, Li Yuan was trying to win the hearts of the people and break the enemy's defense from within.

While strictly enforcing military discipline, Li Yuan sent envoys to the city to shout to Wei Wensheng and others. Roughly speaking, the Tang Guogong did not oppose the Sui Dynasty, but just wanted to abolish the Ming Dynasty, support the acting king Yang Yu as the emperor, and still respect the orthodoxy of the Sui Dynasty. Therefore, Tang Guogong hopes that you can understand the reason, open the city gate, and welcome Tang Guogong's army into the city, so that it is good for everyone, isn't it beautiful?

In the face of Li Yuan's initiative to send a signal of peace, what kind of reaction did Wei Wensheng and the others in Chang'an City have? At that time, Wei Wensheng was already terminally ill, and the two who presided over the overall situation were Yin Shishi and Gu Yi. Of course, the two of them would not surrender to Li Yuan, the Yin Shishi knew that he not only killed Li Yuan's relatives, but also dug the ancestral grave of the Li family, Li Yuan hated himself so much, once he surrendered, Li Yuan was the first to open the knife. Therefore, Yin Shishi and Gu Yi rejected Li Yuan's persuasion to surrender, did not make any reply, and continued to defend themselves in the infant city, resisting stubbornly.

The intention to occupy Chang'an peacefully failed, and Li Yuan felt that he could only use military means to occupy Chang'an. On October 27, the thirteenth year of the Great Cause (617), Li Yuan issued an order to attack Chang'an, and then 200,000 rebels launched a fierce attack on Chang'an.

At the same time, Li Yuan agreed with his subordinates, "Don't offend the Seven Temples and the Acting King and the Clan, and the violators will destroy the three clans!" Li Yuan told his subordinates that after conquering Chang'an, they were not allowed to attack the temples of the Sui Dynasty within seven generations, and they were not allowed to harm the acting king Yang Yu and the Sui Dynasty clan, and those who violated the order were allowed to wipe out the three clans.

The decisive battle of the general attack on Chang'an City is about to kick off! Whether it is Li Yuan, Li Jiancheng, or Li Shimin, they all know very well that as long as they break through the century-old capital in front of them. Then, the foundation of the Li Tang Dynasty will be determined from now on, and the founding of the Tang Dynasty will also start from this moment.

However, Chang'an City is not anywhere else, it is the capital of the Sui Dynasty, and its importance cannot be compared with even the eastern capital Luoyang. Li Mi sat on 300,000 Wagang army and besieged the eastern capital Luoyang for nearly a year, and he has not been able to capture it so far, let alone Chang'an, the political center of the Great Sui Dynasty.

Facts have proved that the process of Li Yuan's general attack on Chang'an was quite difficult. On October 27, the thirteenth year of the Great Cause (617), Li Yuan commanded 200,000 rebels and launched a final general attack on Chang'an. The walls of Chang'an were high and thick, and the battle was extremely fierce. It was in this process that Sun Hua, the main general of the rebel army, was unfortunately killed by an arrow.

At the beginning, after the "Battle of Huoyi" was a complete victory, Li Yuan led his army to the west along Fenshui, and the road was unstoppable. During this march, the strategist Ren Gui suggested to Li Yuan that a large number of powerful forces entrenched in the Guanzhong region should be surrendered and the military strength of Li Yuan's righteous army should be strengthened, and Li Yuan adopted Ren Gui's suggestion.

Sun Hua was the first powerful faction in Guanzhong to take the lead in responding to Li Yuan, so Li Yuan was also very grateful to Sun Hua for his help. According to the records of "Zizhi Tongjian", at that time, Sun Hua crossed the Yellow River from Yang and came to pay homage to Li Yuan. After Li Yuan saw Sun Hua, "Yuan shook hands and sat down, consoling him." Li Yuan took Sun Hua's hand and sat with him. In addition, Li Yuan also entrusted Sun Hua with important responsibilities and appointed him as Doctor Zuo Guanglu, Wuxiang County Prince, and Feng Yi Taishou, and at the same time, the historical documents recorded:

Those who have made meritorious contributions will be awarded officials by the second rank of the Chinese people, and the rewards will be very large. Make it a priority...... (Information Governance Guide)

Later, Sun Hua became an important military general of Li Yuan's group. For example, Li Yuan led an army to besiege Hedong County, and Qu Tutong sent an army to attack the camp of the righteous army at night in order to take the lead. In the end, it was Sun Hua, Shi Daqi and other generals who led the rangers to launch a counteroffensive from the rear of the Sui army, breaking the Sui army and reversing the situation in one fell swoop. Therefore, Sun Hua can be said to be a pivotal general in Li Yuan's righteous army.

Now, at the last moment of the general attack on Chang'an City, Sun Hua was folded under Chang'an City, shrouded in horse leather. And Sun Hua also became the only senior general who died in the battle for the founding of the Tang Dynasty. At the same time, it can also be seen how the defenders of the Sui Dynasty stationed in Chang'an did the final battle of the trapped beasts, and how difficult the battle of Chang'an was, even the main generals of the righteous army like Sun Hua were killed by arrows in the process of attacking Chang'an.

However, Li Yuan also knew very well in his heart that the Sui army was already at the end of its strong crossbow at this time, and the defenders of Chang'an had no fighting spirit. Now, it's just a dying throe. The current situation is that whoever persists to the end will be the final winner. Li Yuan is now fighting with the Yin World Master, Gu Yi and others in the city: endurance!

Moreover, in order to attack Chang'an, Li Yuan made full preparations before this. Li Yuan's father and son raised troops from Taiyuan, all the way from Shanxi to Guanzhong, experienced countless dangerous and bloody battles, and finally advanced into Guanzhong, and the soldiers came to Chang'an City. At the beginning, when Li Yuan raised troops from Taiyuan, the total number of troops was only 30,000. Therefore, Li Yuan divided the army at the beginning of the army into three armies: left, center, and right, and he himself, Li Jiancheng, and Li Shimin each led an army. Later, when Li Yuanbing came to the city of Chang'an, he already had more than 200,000 troops at this time.

Despite this journey, Li Yuan's forces continued to expand and increase. However, there was a fatal flaw in Li Yuan's army, that is: the lack of siege equipment. Therefore, when he attacked Huoyi, Li Yuan's army could only be "a soldier with thin flesh and a subdued army".

Therefore, this time, in order to attack Chang'an in general and conquer Chang'an City in one fell swoop, sufficient preparations were made. According to the record of "Notes on the Entrepreneurship and Living of the Tang Dynasty", in order to make siege equipment, Li Yuan "went around the capital of bamboo and wood, and annihilated him". It means that in order to build siege equipment, Li Yuan cut down all the trees around Chang'an. It can be seen that Li Yuan made a bloody effort in order to take Chang'an City. In any case, it is necessary to break through Chang'an City.

The battle of the general attack on Chang'an lasted from October 27 in the thirteenth year of the Great Cause (617) to the ninth day of November. Although the defenders of Chang'an have been stubbornly resisting, the morale of the rebel soldiers is still high, and they storm Chang'an City day and night. In the end, on the ninth day of the first month of November, a leader named Lei Yongji in the rebel army took the lead in ascending to the head of Chang'an City, opening a breakthrough. Subsequently, 200,000 rebel troops rushed forward and entered Chang'an City like a tide, and Chang'an was finally conquered by Li Yuan.

On the ninth day of November in the thirteenth year of the Great Cause (617), Li Yuan invaded Chang'an, which meant that Chang'an, the capital of the Sui Dynasty, was completely occupied by Li Yuan, and also marked the official entry of the Li family father and son into Guanzhong and Dingding Chang'an. From the moment he stepped into Chang'an, the founding process of the Tang Dynasty began!

From July of the thirteenth year of the Great Cause (617), Li Yuan officially raised troops in Taiyuan, and on the ninth day of November of the thirteenth year of the Great Cause (617), Li Yuan conquered Chang'an and entered the Guanzhong. Among them, it is less than half a year. In just a few months, Li Yuan used the original 30,000 righteous army to overcome all the obstacles all the way, from Taiyuan to Guanzhong, and conquered Chang'an. It cannot but be said that the half-year bloody battle between the Li family and his son in Chang'an can be called a miracle in Chinese history and even in Chinese military history.

Li Yuan's father and son rose in Taiyuan, and in the process of entering the main customs in the past six months, they encountered layers of obstacles. They have successively experienced a series of thrilling games and bloody battles such as the blitzkrieg attack on Xihe, the bloody battle of Huoyi, the fierce army in Hedong, the advance into Guanzhong, and the Dingding Chang'an. In the end, the first step of Li Tang's founding of the country was realized, which opened a great prelude to the upcoming Tang Dynasty and sounded the clarion call for the founding of the country.

Speaking of which, some people may have questions. When Li Yuan Jinyang raised his army, the righteous army in his hands was only 30,000 horses, and in the chaotic times at the end of the Sui Dynasty, he definitely belonged to a vulnerable group. At that time, the person who was most qualified and powerful to achieve the imperial cause was, of course, the leader of the Wagang Army, Li Mi, who was the leader of the anti-Sui Alliance. But why, it was Li Yuan who finally achieved the emperor's business, not Li Mi. Why was Li Yuan able to have the last laugh, and why were the Li family's father and son able to stand out in the troubled times at the end of the Sui Dynasty?

Why were the Li family father and son finally able to create the Tang Dynasty and achieve the imperial industry? In addition to the defensive mistakes of the Sui Dynasty, the Li family's father and son used their troops like gods, there are two key factors.

First, the Li family father and son have clear strategic goals.

Throughout the entire war in Guanzhong, from Jinyang to the final conquest of Chang'an. From beginning to end, the strategic goal of Li Yuan's father and son was very clear, that is, to directly take Guanzhong and conquer Chang'an. Therefore, in this process, the Li family father and son are all focusing on the overall strategic situation and coveting the small profits in front of them.

Take bypassing Hedong County and taking Chang'an as an example. When the attack on Hedong County was frustrated, Li Yuan understood that Hedong County would be difficult to capture for a while. Therefore, after Li Shimin put forward the suggestion that the soldiers should be fast, bypass Hedong County, and march directly to Chang'an, Li Yuan immediately took action.

In Li Yuan's eyes, his ultimate goal is Guanzhong, Chang'an. Since Hedong County is difficult to capture in a short period of time, then, simply don't fight. bypassed this hard bone and went straight to Chang'an, the "staple food". Therefore, Li Yuan's purpose is very clear. He won't waste too much time on some petty profits. It is precisely because the Li family's father and son have clear strategic goals that it is inevitable that they will eventually become the main Guanzhong.

Second, Li Mi contained the main force of the Sui army in Luoyang.

After Li Yuan raised troops from Taiyuan and marched to Guanzhong, Li Yuan faced not only the Sui Dynasty defenders stationed in Guanzhong, but also Li Mi, the leader of the Wagang Army who besieged Luoyang. In order to ensure that he could march smoothly to Guanzhong, Li Yuan specially lowered his body and released a "sugar-coated cannonball" to paralyze Li Mi. In the end, Li Mi relaxed his vigilance and maintained a good connection with himself, so as not to stab himself in the back.

In addition, Li Yuan showed weakness to Li Mi, not only because he was worried that Li Mi would hinder his path to Guanzhong. Similarly, Li Yuan has a deeper consideration. If the west enters Guanzhong and attacks Chang'an, then the main force of the Sui army in Luoyang will definitely support Chang'an. How can the main force of the Sui army in Luoyang be blocked in Luoyang. Li Yuan felt that Li Mi was a good chess piece.

Because Li Mi was leading 300,000 Wagang troops at that time to besiege the eastern capital Luoyang. Therefore, only by maintaining good contact with Li Mi can Li Mi contain the main force of the Sui army in Luoyang. At that time, Li Yuan marched into Guanzhong, so that there was no military threat from the east.

In short, no matter what, Li Yuan and his son eventually became the victors of history. After nearly half a year of bloody fighting, the Li family father and son finally entered the Chang'an City they dreamed of. Entering the Guanzhong and Dingding Chang'an, marking the initial formation of the basic outline of the Li Tang Dynasty, the Li family father and son completed the first step of founding the country.

However, conquering Chang'an does not mean that Li Yuan can sit back and relax from now on. In fact, for Li Yuan's father and son, it was only the first step in the long march. Li Yuan, who has just entered Chang'an, still has a long way to go in the future. Entering the main level is just the beginning.

What was the world like at that time? Everywhere wolf smoke, a group of males chasing deer. The father and son of the Li family, who had just entered the customs, were undoubtedly an emerging political and military force among the many heroes of the late Sui Dynasty, and their foothold was unstable. Therefore, Li Yuan, who had just occupied Guanzhong, not only had to deal with the clans and officials of the Sui Dynasty, but at the same time, he also had to face the fierce eyes of the separatist forces from all over the country. So, how did Li Yuan deal with such a thorny internal and external situation?

Just a year after Li Yuan occupied Guanzhong, a brand-new dynasty rose like a high-rise building and was born on the land of China. This is what has left countless brilliant traces in Chinese history - the Tang Dynasty! In the long years of 289 years thereafter, the Chinese nation will rush to the pinnacle of China's ancient prosperity under the leadership of this great dynasty, and create a glorious future generations!

At this important moment in history, as the founding emperor of the Tang Dynasty, Li Yuan, the founding emperor of the Tang Dynasty, experienced what kind of mental journey. How did Li Yuan finally replace the Sui family, realize his imperial dream of changing the dynasty and turning his family into a country, and create a prosperous Tang Dynasty?