Li Yuan trusts Li Shimin as before, but the situation of the other two sons is quite embarrassing.

Since the last time they returned from Yangzhou, Li Jiancheng and Li Yuanji have been treated coldly, on the one hand, the two are incompetent, and the other is that the brothers have turned against each other, which makes Li Yuan quite annoyed.

Although Li Jiancheng and Li Yuanji have a bad relationship, at certain times, they still have similar indignation, why can he, Li Shimin, also return in defeat, be so valued?

This inexplicable imbalance is indeed irritating.

After Li Yuan became emperor, Li Jiancheng was not named the crown prince, but became the king of Jin. As for Li Yuanji, he was named the king of Qi, and the titles of Li Shimin and Li Yuanba remained unchanged, still the king of Qin and the king of Zhao.

Li Yuan's move, to a certain extent, is also a sign of his orthodox status. After all, the titles of Li Shimin and Li Yuanba are both from Yang Guanglai, and he is now the Zen Emperor of Sui, which is to inherit his system.

But Li Jiancheng is the eldest son, but he has not been crowned the prince, and from a certain point of view, he has been put into the cold palace by Li Yuan. What is a mere Jin king, it's just a joke.

Although Li Jiancheng was shown off his IQ in Yangzhou, he is not a fool, how could he not know Li Yuan's intentions?

Li Yuan was disappointed by his performance, and I am afraid that Li Yuan has given up on him and completely focused on Li Shimin. Maybe it won't be long before Li Shimin will become the crown prince.

No matter what the situation of Datang is now, the position of this prince is very important. What should belong to him is about to be taken away by Li Shimin, how can he be willing?

You must know that Li Shimin Luoyang and his entourage also suffered heavy losses, why can he still be so valued by Li Yuan after he comes back, is it possible that he Li Jiancheng is just a joke?

In the past, if Li Yuan wanted to do something important, it was bound to make Li Jiancheng a staff officer in the past, no matter whether he could put forward useful words or not, at least his status was highlighted, but now it is completely different.

Combined with all of the above, an inexplicable unwilling emotion grew in Li Jiancheng's heart. Compared with Li Yuanji's betrayal, he was angry with Li Shimin.

Fortunately, Li Jiancheng is still somewhat sensible, so he will not raise a knife to cut Li Shimin. He just buried this resentment in his heart, and sooner or later it would explode.

……

Li Jiancheng's hatred, Li Shimin did not perceive.

Because of Li Yuan's order, he is very busy now, and he needs to straighten out his troops and horses, and it won't be long before he will lead his troops to attack Tongguan, accompanied by many generals, but the strongest is none other than Li Yuanba.

When it comes to this, Li Yuan naturally will not take it lightly, he wants to solve the battle as quickly as possible. It should not be a problem to send Li Shimin and Li Yuanba to deal with a Tongguan without Luo Cheng.

The Snapdragon Army in Luo Cheng's hands is certainly strong, but if it fights with Li Yuanba, it is still not worth mentioning.

In this way, the army was completed, and Li Yuan reminded Li Shimin again, and the 100,000-strong army headed towards Tongguan. Li Shimin's eyes were piercing, and he was bound to seize Tongguan.

……

In Tongguan, there are 30,000 Snapdragon troops.

This was the arrangement made by Luo Cheng earlier, and the 30,000 elites were led by Yao Ping.

The Snapdragon Army is powerful, but that's not all, as we all know, the Snapdragon Army's detection ability is also far superior to others.

Yao Ping had already planted many scouts around him, and even arranged them near Chang'an City. At this time, the effect was revealed, enough for Yao Ping to take the lead.

In ancient times, the importance of intelligence was undoubted, because to grasp intelligence in advance meant to take the initiative. When there is no convenient means of communication, the impact is significant.

The scout rode alone, naturally much faster than Li Shimin's army, and was able to inform Yu Yaoping of the news in advance.

arranged many scouts, and naturally there were also Luo Cheng's orders, and at this moment it was finally showing its use.

When Yao Ping heard that Li Yuan had sent a large army, led by Li Shimin's brothers, his expression immediately condensed slightly. But he was just a little solemn, and he didn't seem too flustered because of this.

In fact, before Luo Cheng left, he had already been instructed.

Luo Cheng knew very well that Li Yuan was not a master waiting to be killed, and after he retreated, he would definitely try his best to recapture Tongguan. And Yao Ping is sitting here, so he naturally has his own tasks.

If Li Yuan sent just a nobody, then Yao Ping would lead the Snapdragon Army to defend Tongguan. After all, Tongguan is extremely important, and it can be held in your hands, and its role should not be underestimated.

But if Li Yuan sent a fierce general like Li Yuanba, Yao Ping and the Snapdragon Army would definitely not be able to hold it. At this time, instead of choosing to fight to the death, it is better to abandon Tongguan and preserve the vitality.

Of course, Luo Cheng's arrangement is not so simple, Yao Ping naturally has no problem abandoning Tongguan and retreating, but before that, he still needs to do something, otherwise it will be too cheap Li Yuan.

Yao Ping is not a reckless person, he knows how to judge the situation, and he also obeys Luo Cheng's orders unconditionally. After thinking about it, he quickly made up his mind, and his expression was a little playful.

After thinking about it, Yao Ping directly dispatched a large number of soldiers to the east of Tongguan, if the intact checkpoint was left to Li Yuan, wouldn't he be making trouble for himself, Luo Cheng ordered that before retreating, a wall was broken.

It will take at most one or two days before the arrival of Li Shimin's army, and Yao Ping must get it done during this period. Otherwise, Luo Cheng's arrangement would be ineffective, and it was not what Yao Ping wanted to see.

The Snapdragon Army is extremely obedient, and after getting Yao Ping's order, they rush to work all night. The wall was tortured, the small half of the wall was dismantled and reinstalled, and the adhesive in between was dropped.

The result was that there were no major problems with the upper part of the wall. However, there are many flaws left in the middle of it, and it is not obvious that there is much abnormality in normal life, but after being hit hard, it will inevitably collapse.

Of course, if Yao Ping withdraws, it will inevitably arouse Li Shimin's suspicions. When the time comes, Tongguan will be thoroughly investigated, and maybe Luo Cheng's thoughts will be discovered, which will have an impact on the occupation.

It was Yao Ping who was ready to wait for Li Shimin's army to arrive, and then fight with him, and after the enemy attacked, he would lead the Snapdragon army to break through and kill, so as to dispel Li Shimin's doubts.

Moreover, around this Tongguan, the east side is the direction of Yanyun's advance, and the other side is the position where Li Shimin's army attacked. After the start of the big war, it will never affect the plan.

After everything was ready, Li Shimin finally arrived with a large army.

However, they arrived a little later than Yao Ping expected, and they had already been delayed for three days. However, it is not a big problem to come sooner or later, Yao Ping is confident and stable as Mount Tai.

Li Yuan's actions had already been expected by Luo Cheng, so why did he have a headache here?

As long as he obeys Luo Cheng's orders, he can keep the army safe and the plan can be realized.

Thinking about it, Yao Ping's eyes looked far away, Li Shimin and Li Yuanba were in front of the army, and 100,000 soldiers and horses were extremely powerful.