The cause of war

Tang Gaozu sent Li Shimin, Liu Wenjing, Sun Qiang Shunde, Liu Hongji and others to recruit people everywhere, and recruited more than 10,000 people. Wang Wei and Gao Junya, the deputy left-behind in Taiyuan, saw that Li Yuan was recruiting and preparing the report, and killed Li Yuan first. Tang Gaozu and Li Shimin took the initiative to attack, pretending to be Wang Wei and Gao Junya, leading Turkish soldiers to invade and kill them in Jin Yanggong, which is called "Jinyang Incident" in history.

Jinyang Incident was the beginning of Li Yuan Group's open uprising. Subsequently, relying on the strength of Guanlong and Hedong landlord groups, the Turkish aristocratic forces of the Northern Alliance declared Emperor Yang as the emperor, made Yang Gang, the generation king guarding Chang 'an, the emperor, and scattered the county to raise troops in Jinyang.

Sui Jun, the general of Xihe County, learned the news of Tang Yuanjun and refused to defend in the city. Li, Li and Li were sent to attack the Xihe River, and Tai Yuan was sent as a staff officer. Xihe county is outnumbered, and the county town is behind closed doors. Li Shimin took the lead and shared weal and woe with the soldiers. The people were very happy that the army would not attack in autumn. It took Li only nine days to capture the Xihe River and kill Gao Deru.

He ordered the opening of warehouses to relieve the hungry, recruited soldiers, and divided the army into three armed forces. He thought that the general, Feng Li Longxi male and left leading viceroy, commanded the left armed forces, while Dunhuang male and right leading viceroy commanded the right armed forces. Both the General's Office and the Governor's Office are subordinate to each other, becoming a powerful military institution with even stronger strength.

In July, Tang Gaozu ordered Li Yuanji to stay in Taiyuan and personally led an army of thirty thousand people. With the help of the western Turkic soldiers, they set out for Chang 'an.

War result

On the ninth day of November, Li Department led Lei Yongji and others into the city first, and the army arrived one after another to conquer Chang 'an. In Chang 'an, Li Yuan welcomed Wang as a puppet emperor, served as governor-general, commander-in-chief of internal and external military affairs, minister and prime minister, and sealed the Tang King. The civil contract law 12 won the support and support of the landlord class in Guanzhong.

War assessment

It was only five months before Li Yuan set out from Taiyuan to conquer Chang 'an. The overall situation is that the peasant war at the end of the Sui Dynasty defeated the rule of the Sui Dynasty and contained a large number of troops in Sui Jun, which made the ruling group of the Sui Dynasty unable to look west and the Guanzhong was empty, unable to compete with the emerging Li Yuan Group. This is determined by the overall strategic situation.

In the process of capturing Chang 'an, Tang Gaozu and his son used ingenious tactics, such as uniting Shi Biao in Kanto, delaying Sui Jun to take care of the west, and immediately stationed troops in Tongguan after entering the customs, thus blocking the reinforcements of the Sui Dynasty.

In the application of specific tactics, we made decisive decisions and lost no time, such as attacking Hedong and marching into Chang' an, and achieved remarkable results. Facts have proved that this deployment is successful. After the fall of Chang 'an, Qu Tutong saw that the Sui Dynasty was lost, and Kaicheng surrendered to Tang Gaozu. On the way to March, Li Yuan made no offense, and got the support of the landlord class in Guanzhong, which reduced the resistance, so he was able to quickly capture Chang 'an and laid the foundation for the prosperity of the Tang Dynasty.