In addition, Li Shimin cleverly used diplomatic means to send someone to meet with Tuli Khan last night and make a powerful statement.
At that time, there were two khans in the Eastern Turks, one was the Great Khan Jieli Khan, and the other was his nephew, the younger Khan Tuli Khan.
This situation happened to be taken advantage of by Li Shimin.
Li Shimin made good friends with Tuli Khan, became his brother, and had a strong relationship with him. In this way, Tuli Khan had no intention of going against Li Shimin, the crisis was resolved, and Jieli Khan's plan failed.
This was also the reason why Jie Li had to give in. His allies were already unstable, so why fight? Maybe in the decisive battle, Tu Li would join forces with the Tang Dynasty to defeat him.
With the joint efforts of Li Shimin and other ministers, the Tang Dynasty and the Eastern Turks signed a peace agreement, and Jieli Khan's dream of the Central Plains came to nothing.
The two sides killed the white horse at the Wei River and made a covenant of non-aggression. Jieli Khan led his troops back to the grassland, and the crisis in Chang'an was resolved.
Li Shimin used the trick of doubting soldiers to make Jieli Khan mistakenly think that the Tang Dynasty had already responded to his attack, and all the emptiness was just a cover-up, so he did not dare to continue fighting.
Jieli Khan should already know about Li Shimin wooing Tuli Khan. Now that he realizes that the internal fortress has been breached, he naturally can't go his own way.
The previous victory of the Tang Dynasty on the battlefield and the imprisonment of Zhi Fengsi Li Khan made Jieli Khan understand the truth. The Tang Dynasty could not be defeated by him. At this time, he was not Li Shimin's opponent, and he did not do anything. So ready to overthrow the Tang Dynasty.
This battle was originally a hasty war. The Tang Dynasty was unprepared, and the Turks were also prepared to take advantage.
But when he discovered that not only would he not be able to gain any advantage at this time, he might also have a sudden decisive battle with Datang. This was something they did not expect and did not want to see.
For Li Shimin, what he lost was dignity and what he gained was shame.
Although Jieli Khan finally withdrew his troops under some threats, after all, the alliance under the city was not a glorious thing, and this was the reason why he felt so ashamed and humiliated.
As for the property, Li Tang had no losses. Li Shimin knew very well that once he gave property to the Turks, the emptiness of Chang'an would be exposed, so he would not give it to him.
For Jieli Khan, his losses were huge.
After this war, he didn't gain much from Li Shimin, but dispatching 100,000 troops would definitely consume a lot of food and grass.
The internal division was once again intensified. Although he and Tuli Khan were at odds with each other before, the two sides did not conflict for the benefit of the tribe. But this time, Tuli Khan conspired with Li Shimin, a powerful enemy. The possibility of this also paved the way for the subsequent split of the Eastern Turks.
War is a continuation of politics. This is a truth recognized by later generations.
With no profit to be made, there is no possibility for Jie Li to continue waging war, unless he has an abnormal mind and fights a meaningless war.
Li Shimin used his political wisdom to resolve this crisis, and all the ministers in the court also worked together to disrupt the Turkic war from all aspects at the same time.
What made Ji Song even more happy was that Tang Dynasty didn't even give a cent of the materials that were originally intended to be given to Jie Li. This was also a deterrent from the previous two wars.
Jie Li didn't dare to make excessive demands. He just wanted to return to the grassland immediately. The longer he stayed in the Central Plains, the more disadvantageous it would be for them.
If reinforcements from the Tang Dynasty arrive and cut off their retreat, the gains will outweigh the losses.
In the evening, Ji Song got the news that the alliance was over and the Turks returned north overnight.
Subsequently, the emperor's imperial edict came, ordering Yuchi Gong to follow the Turkic army overnight and monitor its departure from the Tang Dynasty. Do not start a war unless absolutely necessary!
This is also the most helpless place for Li Shimin. Although it is his own land, he cannot annihilate them. This is the greatest shame of being an emperor.
In addition, Datang was always bluffing. If there was no certainty of victory, it would be better not to anger the Turks. If Jie Li is forced to death, everything he has done before will be ineffective.
Li Shimin did not return to the camp, but went directly back to Chang'an. As an emperor, he could not leave Chang'an easily, and he would need to handle a series of post-war matters.
Ji Song did not follow Yuchi northward, but continued to stay in the camp to sort out supplies and teach the eighteen teenagers.
As time passed, reinforcements arrived one after another. They did not stop. Except for the infantry stationed in place, all the cavalry immediately went north to meet with Yuchi, continuing to put pressure on the Turks and forcing them to quickly leave the northern border.
Facts have proved that this approach is correct. When Jie Li knew that a steady stream of Tang troops were gathering behind him, he quickly ordered the army to march quickly, abandoning all unimportant supplies.
As a result, Yuchi's army grew more and more, with more than 30,000 cavalry gathered, and troops continued to gather.
In Ji Song's view, this in itself is a bit of a fueling tactic. But at this time, it is just right.
At this time, the message transmission was extremely slow and there was a huge delay. Jie Li only knew that there were more and more Tang troops, but he had no idea how many there were.
Therefore, he did not dare to gamble and could only leave quickly, fearing that his army would be blocked in the north. By then it would be too late to say anything.
In the blink of an eye, more than ten days had passed. Jie Li had already left the Great Wall, and Yuchi also began to return. Reinforcements from various places, except for a small number that were left in the north as a reserve force, returned to their bases.
What’s more interesting is that Li Shimin’s threats to Jieli Khan not only scared him back to his hometown in Turks, but also made the frightened Jieli Khan give Li Shimin a bunch of things: Bingxu in September, Jieli Offer three thousand horses and ten thousand sheep.
When Ji Song heard the news, he was simply stunned and thought: How cowardly is Jie Li to do such a naive thing?
The Weishui Alliance broke Jieli Khan's dream of taking control of the Central Plains and gave the Tang Dynasty, which was waiting for development, a chance to recuperate.
After the wars in the late Sui Dynasty, people's lives gradually began to improve.
If the Weishui Alliance Agreement failed, there would inevitably be wars again, but his peace signing saved the people from the pain of war. It also gave the Li and Tang dynasties valuable time to develop their economy and accumulate strength.
He once again proved Li Shimin's ability to the world and consolidated his throne.
Although it had been proven many times before Li Shimin ascended the throne that only Li Shimin was the qualified heir to the Li Tang Dynasty.
But after all, in the eyes of outsiders during the Xuanwu Gate Incident, he still killed his brother and coerced his father by force.
Naturally, some people were dissatisfied, but the wisdom and courage shown by Li Shimin in the Weishui Alliance made these dissatisfied people surrender.
Diplomatic means also triggered internal divisions in the Eastern Turks. Li Shimin's friendship with the Tuli Khan made the little Khan ready to take action.
Sure enough, not long after, Tuli Khan and Jieli Khan had a head-on conflict, and the East Turks began to split within themselves.