Since ancient times, the courtiers have been an important talent force of a country, and many times they have relied on the wisdom of the ministers to determine the fate of the country. For example, Zhuge Liang, one of the Three Kingdoms period of the Shu Han Dynasty, Zhang Liang, one of the Three Masters of the Early Han Dynasty, Guan Zhong of the Spring and Autumn Period and the Warring States Period, and so on.
The courtiers did not need to go on the battlefield to kill the enemy, but they were often able to rely on their wisdom to "strategize and win thousands of miles away", and Li Bi during the Tang Dynasty was such a strategically far-sighted strategist.
Li Bi was born in the Tang Xuanzong period, born in Liaodong County at that time, the ancestor was the Northern Zhou Taishi Li Bi, he was the sixth grandson of Li Bi, his father Li Chengxiu once served as a county commander, so born, he can also be regarded as a famous person, a good family lineage made Li Bi read the scriptures from an early age, and he also had a deep understanding of the tactics and tactics, because of this, Li Bi in his youth was the "prodigy" that was popular in his hometown.
As an adult, Li Bi decided to travel, on the one hand, to make like-minded friends, and on the other hand, to explore the Divine Alchemy. During the Tianbao period, after Tang Xuanzong heard that Li Bi was quite famous, he recruited Li Bi to enter the capital as an official, and Li Bi was enjoined into the dynasty and was given the title of Waiting for Hanlin, responsible for the teaching work of the crown prince Li Heng.
Later, because of his disagreement with the traitorOus Minister Yang Guozhong in political opinions, he was expelled from the imperial court by Yang Guozhong and became a hermit on the outskirts of Beijing. Soon after, the "An Shi Rebellion" broke out, and in order to suppress the rebellion of An Lushan and others, the Tang Dynasty sent a large number of troops to counterattack, most of which were originally guarded in the western border to defend Tubo.
Just when the rebels and the Tang army were fighting fiercely, Tubo, who saw that the defense in the western region was empty, had evil thoughts, and after internal consultation in Tubo, he took the opportunity to send troops to the Tang Dynasty and constantly encroached on the territory of the Tang Dynasty.
Only in the early stage of the "Anshi Rebellion", Tubo successively annexed most of Longyou, Hexi and other areas, and then invaded Anding, Anxi and other areas, it can be said that at that time half of the western part of the Tang Dynasty was attacked by Tubo, in order to prevent the Tang army from counterattacking, Tubo also contacted the Tang Dynasty in the process of occupation, using the name of "peace" to paralyze the Tang Dynasty, tubo people knew very well that the Tang Dynasty had no time to take care of these at this time, so the voice of aggression became louder and louder.
In fact, before that, the relationship between Tubo and the Tang Dynasty was still very good, during the Tang Taizong period, the Tang Dynasty was strong, Tubo Zampu Songzan Gampo took the initiative to establish diplomatic relations with the Tang Dynasty, and then Tang Taizong also married Princess Wencheng to Tubo. However, by the time of Theasong Dezan, Tubo's ambitions had grown, and he had gradually become covetous of the Tang Dynasty.
Because of the victory of the rebels, the Tang generals were very dissatisfied, Tang Xuanzong could only pass the throne to Li Heng, after Li Heng took the throne, he first thought of his teacher Li Bi, so he invited Li Bi out of the mountain, and with the help of Li Bi, the Anshi rebellion was quickly put down.
At this time, Tubo had already taken advantage of the chaos to capture Chang'an City, but Tubo did not intend to stay in Chang'an for a long time, because they understood that the strength of the Tang Dynasty army was still very strong, and even if they wanted to occupy It for a long time, they could not defend Chang'an, so the Tubo people withdrew after plundering Chang'an City.
Faced with this method of warfare in Tubo, Li Heng was very troubled and asked Li Bi for countermeasures, and Li Bi put forward his own opinions according to the situation:
Unite the surrounding forces such as Hui, Dashi, and Tianzhu to isolate Tubo and make Tubo a "lonely place".
And to constantly warn the neighboring countries, Tubo is extremely ambitious, let them always be on guard against Tubo, so that the Tang Dynasty has helpers who can monitor Tubo at all times.
Li Heng adopted Li Bi's advice and implemented the strategy, and soon Tubo lost allies and fought alone for a long time, after which it was difficult to match the reorganized Tang army, and the defeat of the battle directly led to chaos within Tubo.
Finally, due to Tubo's implementation of the so-called "policy of exterminating Buddhism", Trisong Detsen lost the hearts of the people and was killed by his subordinates, and tubo was leaderless and fragmented, and it was no longer possible to pose an effective threat to the Central Plains!