Li Yuan came to the outside of Chang'an, the capital that represented the supreme power of the Sui Empire, which had been besieged by the Tang army. Looking at the thick city wall, Li Yuan must have thought of Emperor Wen of Sui at this time, if Emperor Wen of Sui was still there, would the Sui Empire still have today's waning mountains? Emperor Yang of the Sui Dynasty was absurd and unreasonable, and he violently levied the people's power, he was simply a demon in the world, how could such a person be worthy of inheriting this great country?

Chang'an City was his starting point, and it was here that he was appreciated by Yang Jian and soared. If it weren't for Yang Guang's several times of wanting to kill himself, he could have had a good future, lived this life happily, and passed away peacefully on the bed surrounded by his children and grandchildren. It was impossible to return to his former peaceful life, and he had already embarked on a path of no return, either forward, across the walls. Either retreat and wait for perdition.

All this was forced by Yang Guang! Offensive!

Li Yuan gave the order for an all-out attack on Chang'an City. He didn't want the city to be in the flames of war, but the enemies in the city refused to surrender on several occasions. In that case, baptize the throne with fire and blood!

Among the defenders of Chang'an, Yang Yu, the acting king, was only thirteen years old, and he was still a child, so he couldn't take on the heavy responsibility at all. The highest commander in the garrison was Wei Wensheng, the secretary of the Criminal Department, this Wei Wensheng was an old man who was about to enter the earth, and when he heard that Li Yuan's army was coming to Chang'an, he was so frightened that he fell ill and no longer participated in military and political affairs. The heavy responsibility of defending Chang'an fell on the generals of Zuo Yiwei, Yin Shishishi, and Jingzhao County Cheng Guyi.

The 200,000 Tang troops attacked the city wall wave after wave like a tide, one after another, and did not retreat for days. Chang'an City is like a flat boat in the waves, fluttering in the storm.

The soldiers besieging the city were very brave, and they swooped towards the city several times, and the Sui army's arrows in the city rained down and could not stop the impact of the Tang army. In the end, a military leader named Lei Yongji, holding a sword in one hand and a shield in the other, led the team to take the lead in the city, killed the Sui army at the head of the city, and opened the city gate.

The generals of the Sui army, such as Yin Shishi and Gu Yi, could not be described as disloyal and brave, and they were trapped in the lonely city, but they still held on for fourteen or fifteen days. It's just that the will of heaven destroys the Sui, and the general trend is that even if the gods descend to earth, they are powerless to return to the sky. After the city gate was breached, the Tang army poured in, Yin Shishi and Gu Yi and others still led the Sui army to resist and fought a street battle in Chang'an City, and finally lost to the Tang army, and all were captured alive. And that Wei Wensheng, when he heard that the city was broken, was scared to death on the spot.

Before attacking the city, Li Yuan had ordered all armies not to infringe on the seven temples of the Sui Dynasty and the royal family. The thirteen-year-old boy Yang Yu was already trembling with fright, hiding in the East Palace, the guards and palace people around him had long since fled without a trace, and there was only one attendant Yao Silian by his side, shouting at the Tang soldiers who entered the East Palace: "You are here to help Emperor Sui, you can't be rude to the acting king!" This drink stopped the chaos of the soldiers.

Li Yuan's excuse for raising troops was to respect Yang Yu, the king of the dynasty, as the emperor and invade Chang'an, and now the foundation is not stable, so Yang Yu's banner has to be temporarily used to support the façade. Li Yuan's ministers paid homage to Yang Yu and invited Yang Yu to the back of the Daxing Palace.

As a banner, Yang Yu can only obey Li Yuanyan, let alone let him go to the apse, even if he lets him live in the pigsty kennel, he doesn't dare to disobey it at all.

For the other generals of the Sui army who stubbornly resisted Li Yuan's army, Li Yuan was not so tolerant. Especially the Yin Shishi, he once killed Li Yuan's concubine, fourteen-year-old Li Zhiyun, the death of this son made Li Yuan very sad. More than a dozen people including the captured Yin Shi Shi were all killed.

Breaking through Chang'an, Li Yuan is the actual controller of the Great Sui Empire, but the red tape on the surface should be there, and the form that should be taken still has to go. A few days later, Li Yuan welcomed the acting king to ascend the throne in the Tianxing Palace, and Emperor Yang of Sui was named the emperor and retreated to the second line.

The newly enthroned emperor appointed Li Yuan as the governor of the capital, Shang Shuling, and the prime minister, and was crowned the king of Tang. The most powerful officials in the entire transitional court were all held by Li Yuan alone. No matter how big or small the military and state affairs are, all civil and military officials, regardless of whether they are high or low, are all in the hands of Li Yuan. Only the matter of sacrificing heaven and earth must be personally attended by the emperor was reported to the emperor.

Here, Yang Yu is just a marionette, and Li Yuan is the real master.

And Li Yuan took Chang'an first, and coerced the Son of Heaven to make the strategic effect of the princes begin to gradually appear. The counties and officials that had previously belonged to the Sui Dynasty began to surrender to Li Yuan one after another. The strategic concept of "passing on the order and the whole world returning to obedience" has been basically realized.

This is the inevitable result of Li Shimin, Liu Wenjing and others insisting on the strategy of westward expansion into Chang'an when they raised troops against the Sui. Emperor Yang of the Sui Dynasty was tyrannical and unreasonable, resulting in chaos in the world, a large number of officials and people of the Sui Dynasty were actually waiting and watching, who could inherit the unification of the Sui Dynasty, these people would submit to whom, no one would be stupid enough to be willing to be the funeral goods of Emperor Yang of the Sui Dynasty.

In this round of competition, Li Yuan does not have an absolute advantage in terms of military strength or political and metallurgical status. Militarily, at the beginning, Li Yuan's army was about 10,000 troops, and it was not until he finally decided to rise against the Sui that he raised 30,000 people. Compared with the army of Li Mi and others, who have more than 100,000 people at every turn, it is really not outstanding.

In terms of politics and metallurgy, although Li Yuan was left behind in Taiyuan, his appointment and dismissal power was completely in the hands of Emperor Yang of Sui. Emperor Yang of Sui wanted to kill Li Yuan several times because of the rumor that "the Li family will prosper and the Yang family will perish", but he did not succeed by mistake. Therefore, for Li Yuan, as long as Yang Guang wants to, he can be relieved of his military power at any time, and there is no capital for revolutionary rebellion. However, Li Mi, Dou Jiande, and others were all loyal supporters of "political power from the barrel of a gun", and they organized their own rebel contingent and were not controlled by the central government at all.

In this situation, Li Yuan did not have an absolute advantage, and it was precisely by virtue of correct strategic thinking and firm execution that he stood out. When the other heroes were still fighting for territory, they firmly occupied the C position and became a generation of Dajia.

The right strategy can often cover up tactical mistakes. Tactical correctness does not lead to strategic victory. The battlefield is like life, and so is life.

One person's success will bring glory to the whole family. Li Yuan seized the power of Emperor Yang of Sui, and naturally he would not treat his family and followers badly. Li Jiancheng was appointed as the prince of Tang, Li Shimin as the Duke of Qin, and Li Yuanji as the Duke of Qi. This is really a person who has attained the Tao, and the chicken dog has ascended to heaven. It's just that Li Yuan still feels empty in his heart, and it seems that something is still missing.

What Li Yuan lacks is the crown on his head.

Although he is the actual ruler of the Great Sui Empire, he is not yet the emperor after all. This little regret was immediately made up.