Li Yuan walked to the huge map laid out in the hall.

"Sichang, Tongguan now has Xiaogong in charge, with him, there is no worry for the time being, so I plan to transfer two armies over, one army to reinforce Tongguan, and one army to reinforce Tongzhou. Then he transferred an army to reinforce Huainan Wang Shentong in Lantian Pass, and another army was transferred to reinforce Dou Kang in Sanguan. ”

Of the twelve armies that returned to the east, four were transferred, and there were still eight left.

Li Yuan walked to the Hetao area on the map.

"According to the information I received, Luo Cheng has withdrawn heavy troops from Wuguan, Tongguan and Pusaka respectively, and now there are only thousands of men and horses left in front of the three passes."

"Then we're on the move." Chai Shao said.

But Li Yuan still shook his head.

Jiancheng and Shimin took the initiative to go out twice, but both suffered a big defeat. Li Yuan no longer dared to attack the direction of Luoyang easily, and that side was already the world of the Qin army.

He thought that he could only accept the suggestion of Li Xiaogong, the king of Zhaojun, to stick to the defense line of the Guanhe River, let the Qin army attack, and they counterattacked according to the pass, so as to open up the asymmetry of the combat strength of the two armies and make up for some disadvantages.

The breakthrough point has to be in other directions.

Last time, Yongan Wang Xiaoji went to fight Liang Shidu, who would have expected to suffer such a fiasco.

"Sichang, although Lingzhou is still in the hands of our army, Yun Dingxing of Fengzhou has already intended to surrender Luo Cheng, but fortunately, the Turks have finally gone south, and Jieli Khan has sent 200,000 troops to cross Yinshan, intending to recapture Monan. I have already sent Tang Jian to meet with Jieli, and exchange the land of Fengzhou and Shengzhou in Hetao for Jieli's support. ”

Fengzhou is the nine plains of the Sui Dynasty, and Shengzhou is the former Yulin County south of the Yellow River in the east.

In order to be able to seek Turkic reinforcements, Li Yuan now can't care about Fengzhou being plugged into the south of the Yangtze River, nor can he care that if the Turks occupy the Hetao, it will be a big trouble in the future.

Now he can only look at the present.

"Jieli has agreed to join forces with us to fight Luo Cheng."

In fact, the matter was not as Li Yuan said, but Li Yuan asked Tang Jian to take his vassal letter to Jieli, and took the initiative to declare himself to the Turks, Li Yuan not only expressed his willingness to cede Fengsheng Erzhou to the Turks, but also promised to defeat the Qin army, and give Dingxiang, Yunnei, Zhuo County, and Mayi County outside Yanmen Pass and Jundu Pass to the Turks.

And within the Yanmen Pass, the land population will be returned to the Tang Dynasty, and the wealth and Jinbao women will be returned to the Turks.

In the face of such a promise, Jieli was moved, so although he had previously awarded Liang Shidu as the Dadu Vika Khan, he still agreed to Li Yuan's request, and he also canonized Li Yuan as Dingyang Khan, and gave Li Yuan 5,000 horses, and at the same time asked Li Yuan to send a princess to make peace, and at the same time sent troops north to attack Dingxiang with him.

Li Yuan was embarrassed to tell Chai Shao that he was a vassal to the Turks, and the so-called Dingyang Khan was to pacify the Yang clan, but in fact, it was not as big as Jieli Khan, but a small Khan.

This is equivalent to Li Yuan's Tang Dynasty becoming a Turkic vassal state, and Li Yuan becoming a Turkic vassal king.

Even the five thousand horses were not given for nothing, Li Yuan had to pay tribute in return, and he had to take gold and silver money and silk to Jieli, and even Jieli opened the price, fifty silks for each horse.

Tang Jian said that of the 5,000 horses given by the Turks, only about 1,000 can be used as war horses, and the rest are very ordinary, but the price is much more expensive than the first-class war horses. But Li Yuan had no choice, so he had to grit his teeth and send someone to receive this batch of horses, and then send 250,000 silks, and canonize a clan girl as the princess to send peace.

But Li Yuan believes that all this is just temporary forbearance, and everything is worth it in order to defeat Luo Cheng. When he wins the world one day, it is not too late to settle accounts with the Turks.

Internally, therefore, he claimed to be in alliance with the Turks, not to be subordinate to the Turks.

"Sichang, you lead the eight armies from Longyou to Lingzhou first, and teach Liang Shidu a hard lesson, just remember the lesson, Liang Shidu is now a Turkic dog, and you have to look down on the master to beat the dog, as long as Liang Shidu returns to Yan and Xia Zhuzhou, we can let him go first."

Liang Shidu once formed an alliance with Xue Ju, but later regretted that he did not join the alliance army to march eastward, and when Xue Ju's army was defeated and destroyed, Liang Shidu ran out to attack Lingzhou again.

But Li Yuan didn't pay much attention to Liang Shi, the four prefectures of You, Yan, Xia, and Sui that he now occupied were all north of the Great Wall, which was a very barren area, with many mountains and stones, except for many Hu people who raised sheep, only Zhucheng and the surrounding areas had some former Han immigrants.

Master Liang occupied these places, and it was not much of a threat to Li Yuan, so he didn't bother to care about him now.

Li Yuan did not ask Chai Shao's opinion too much, but deployed his own strategic plan to him, which was a decision that Li Yuan had already agreed with Pei Lian, Liu Wenjing, Tang Jian and other ministers.

"First go to Lingzhou to relieve the siege, teach Liang Shidu a lesson, and then go north to Fengzhou along the Yellow River, relieve Yun Dingxing of his military power position, and take over Fengzhou. Then march east to join Jieli Khan, besiege Dingxiang City, defeat Luo Siye and Luo Simo first, and take the land outside the Great Wall. Then you and Jieli divided their troops into two ways, all the way to attack Mayi, all the way to attack Fanyang. ”

This is a sword that directly threatens Luo Cheng's back.

If the offensive goes well, when the troops surround Taiyuan and Fanyang, Luo Cheng will break his backbone and scatter it.

"I also sent someone to contact Dou Jiande in Hebei to discuss an alliance with him."

Li Yuan sent an envoy to Dou Jiande to ask for marriage, hoping to marry the daughter of Dou Jiande for the third son Qi Wang Yuanji, if this family affair is achieved, then the Dou and Li families will become in-laws, and then one is in Guanzhong and one is in Hebei, and the two families will join forces to send troops, and then cooperate with the Turks, they can counterattack Luo Cheng.

"I agreed with Dou Jiande that after the matter is completed, Hebei and Guanwai east of Taihang Mountain will all be returned to Xia Kingdom, and I will have Hedong and Henan."

Chai Shao looked at the map and had to say that there was no problem with the emperor's strategy.

The Turks had 200,000 troops to the south, and he brought 12 armies, leaving four and eight about 100,000 horses, and Dou Jiande in Hebei also had at least 200,000 troops.

"The key point is Taiyuan, Taiyuan is the junction of Guanzhong Hedong and Hebei, and at the same time occupying Taiyuan, you can also overlook the Central Plains. Therefore, first of all, we must seize Taiyuan, and then we can divide Luo Cheng's army corps in Henan, Shandong, Huainan, and Shannan, and its Daibei, Hebei, and Guanwai, so that they can't take care of each other, and then we will break them down and eat them separately. ”

Chai Shao listened very carefully, and fully understood the urgency of the current situation and the emperor's strategic intentions.

Finally, he asked a question.

"Your Majesty, now that it is summer, it is about to be the height of summer, the weather is about to become very hot, and the rain is frequent, the Turkic army of Jieli Khan, can it guarantee its combat strength offensive this season, can they withstand the scorching heat, and the river is full in the rainy season, and the cavalry is difficult to exert its might."

Li Yuan was silent.

There was a dead silence in the temple.