Zhang Xuan and Fang Xuanling looked at each other quickly. Fang Xuanling smiled calmly and said, "The Turkic army went south alone, and there was insufficient supply. As long as we seize Loufan Pass, cut off their retreat, and stationed heavy troops in the Shique Valley, making it impossible for the Turkic army to go south to the southern part of Bingzhou. When they exhausted the military rations and were not supplied, they would be in chaos without fighting. Then it was time for us to wipe out the Turkic army. If the Turkic army was not completely destroyed, they would come again next time. Wouldn't we have no peace?"

Wei Zheng nodded silently and said for a while: "Your Highness makes sense. This is our best opportunity. I will go back and tell my lord what you think."

Zhang Xuan said again: "The next thing is a consultation on some details. Military Secretary Fang will discuss with Mr. Fang in detail. I will not participate. If you have any questions, Mr. Wang will say it bluntly, it is related to the common interests of both countries. I believe that both of us have sincerity."

Wei Zheng quickly got up to thank him. Zhang Xuan said a few more words before turning around and leaving.

Fang Xuanling asked Wei Zheng to sit down again and said with a smile: "Let's start with the deployment of troops from both sides!"

Zhang Xuan returned to the central army tent and was still standing in front of the sand table to ponder. Although he was very clear about Wei Zheng's statement, he also knew in his heart that if they did not take practical and effective measures, they would probably lose the opportunity to wipe out the Turkic army. The reason why Chuluo Khan has not retreated yet is because he has not received the news that the entire Zihe garrison was destroyed. He received a message from Feiying, and the Turkic relied on horseback, and the news would not be so fast.

The only way Zhang Xuan thought of was to take the initiative before the main Turkic forces got the news, and then let the Tang army cooperate with each other and pay the price to wipe out the 100,000 Turkic army. However, Zhang Xuan was worried about Li Jiancheng's scheming. Li Jiancheng was likely to wait for the Sui army and the Turkic army to fight both sides. He would come out to pick up the benefits of the fisherman, use the Turkic army to weaken the Northern Sui army, and then use the Northern Sui army to severely damage the Turkic army. Will Li Jiancheng let the best of both worlds go?

Zhang Xuan pondered for a moment, and at this time, a personal soldier whispered: "Your Highness, General Wei is asking for a meeting, he said something important."

Zhang Xuan nodded, "Let him in!"

Soon, Wei Wentong hurried into the tent and bowed and said, "There is a policy for humble duties to be dedicated to the commander."

“What strategy?”

"About seizing Loufan Pass!"

Zhang Xuan was so excited that this was exactly what he was most worried about. Could it be that Wei Wentong really have a way?

"Continue talking!" Zhang Xuan said hurriedly.

Wei Wentong walked to the sand table, picked up the wooden pole and pointed at both sides of Loufan Pass, "Master, Loufan Pass is actually the branch line of the Great Wall. The mountains on both sides are towering mountains and a continuous Great Wall. Beizhi can lead a three thousand troops to the mountain, just like the Turkic army breaking through Zihe Pass and rushing into Loufan Pass along the Great Wall."

Zhang Xuan pondered for a moment and said, "I have actually considered this method, but Loufan Pass is different from Zihe Pass. There are cliffs on both sides of Loufan Pass, and the sharp cliffs with a knife-cut height of more than ten feet. How can you get down?"

"Weizhi can use soft ladders, and the speed is also as fast. We have done experiments. Using three soft ladders, three thousand soldiers can climb all of them in just one stick of incense. At night, they can completely achieve thunder attacks."

"But there are patrols below, how do you solve it? The Turkic army's counterattack is much faster than a stick of incense."

"This is the key. Beizhi had already done his tricks when he evacuated Loufan Pass. I will send a scout team to sneak into Loufan Pass in advance, kill the sentries and patrols in the west of the city, and at the same time control the switches of the north and south city gates."

Zhang Xuan was walking back and forth in the camp with his hands behind his back. He still felt that the risk was too great. The Turkic army sent 50,000 troops to control Loufan Pass, so it was so easy to succeed. Even if he succeeded by luck, how could he keep it?

Seeing that the coach pondered and said nothing, Wei Wentong knew that the coach didn't believe in his plan, and he was a little anxious.

"Reporting to the commander, Bei Zhi is very clear about the defense of the Turkic army in Loufan Pass. There are 10,000 troops stationed in the south of Guancheng and 30,000 troops stationed in the north of Guancheng. However, neither of these two troops are stationed at Guancheng, but are more than ten miles away from Loufan Pass. As long as Bei Zhi destroys the police beacon tower in time, they will not even know that Loufan Pass has been captured."

Speaking of this, Wei Wentong took out a thick war plan from his arms and presented it to Zhang Xuan: "I have been planning for a long time, and all details have been taken into consideration. I beg your highness to agree!"

Zhang Xuan took the thick book of plan and was a little surprised. It turned out that Wei Wentong had been preparing for a long time. It seemed that the fall of Loufan Pass made Wei Wentong breathe a sigh of relief.

Zhang Xuan smiled and said, "Let me see it! Is OK or not, I will give you a clear answer before noon."

"Thank you, Your Highness!"

Wei Wentong slowly retreated with a gift. Zhang Xuan opened the plan and looked carefully.

Half an hour later, Zhang Xuan was still pondering the feasibility of Wei Wentong's plan in front of the sand table. At this time, Fang Xuanling opened the curtain and walked in. Zhang Xuan temporarily put down the report and asked with a smile: "Has Wei Zheng left?"

Fang Xuanling nodded, "We have communicated in detail, and he wants to rush back and report to Li Jiancheng immediately."

"Do you think Li Jiancheng has the sincerity to cooperate?"

Fang Xuanling sighed and said, "Wei Zheng also told me clearly that Li Jiancheng prefers the Turkic army to retreat without fighting, but I feel that Chang'an has no sincerity."

"You mean Li Yuan?"

Fang Xuanling nodded, "Of course Wei Zheng wouldn't tell me, but he accidentally missed a sentence. Li Jiancheng and Chang'an's opinions were not unified. Then I was thinking, Li Jiancheng tended to withdraw his troops voluntarily. Does Li Yuan hope that Li Jiancheng and us actively cooperate to wipe out the Turkic army in Taiyuan County? It is absolutely impossible, so there is a possibility. Li Jiancheng only wants to protect Bingzhou, but Li Yuan was considering that when we and the Turkic army were both defeated, they dispatched large troops to annihilate our two armies together. This should be the disagreement between Li Jiancheng and Li Yuan."

"The military advisor is right. When we were expeditioning Goguryeo, Li Yuan was considering stabbing us from the back. When we intercepted Yu Wenji, he did this. In this person's heart, we threatened him more than anyone else. He could do it completely. At worst, he would ask for peace from the Turks in the end."

"Your Highness, you must be careful of others!"

Zhang Xuan took a few steps behind his hands. Instead of letting the Turkic army retreat to the grassland like this, it would be better to take a risk. Judging from Wei Wentong's detailed plan, he has at least 30% chance of success.

Thinking of this, Zhang Xuan ordered again: "Let General Wei come to see me!"

The west of Loufan Pass belongs to the northern line of the Luliang Mountains, and the east is the remnants of the Taihang Mountains. The two major mountain systems meet here, with high mountains and steep cliffs everywhere, and the terrain is very dangerous. Loufan Pass is just a gap in the valley and is also the edge of the mountain fault, so the terrain from Loufan Pass to the south suddenly decreases, and walks from the south to the north. Loufan Pass is located at a high place, and it is very difficult to attack it from the south.

There are also mountains on both sides of Loufan Pass, and there are cliffs. The Great Wall suddenly broke here. In fact, there is no Great Wall east of Loufan Pass. It is actually the end of the Great Wall branch line to the west.

Wei Wentong proposed the plan to hang down the pass from the Great Wall to the west, which is because the cliffs on the west are only eleven feet tall, while the cliffs on the east are more than thirty feet tall, which is completely unrealistic.

Of course, the Turkic army was also guarding against the possibility of the Sui army entering the pass from the Great Wall to the west, so a sentry tower was built under the cliff to the west, with several soldiers staring at the cliff to the west day and night. Once there was an abnormality, the alarm bell would be sounded immediately. At the same time, more than a dozen soldiers were patrolling this section at night to ensure that there was no accident.

Therefore, without internal support, the Sui army basically could not break into the pass from the cliff to the west.

However, the Turkic army stationed heavy troops in the north and south of Loufan Pass, building Loufan Pass into a major pass. The troops coming from the north had to defeat the defense of 30,000 people, and the same was true for the south. The troops coming from the south had to exceed the defense of 10,000 people, so there were not many troops garrisons in the pass itself, only two or three thousand.

That night, an elite scout of more than 100 people, led by Wang Xuanjing, crossed the western mountain and quietly arrived at the north of Loufan Pass under the cover of night. This is something that infantry can do but cavalry can't do.

Wang Xuanjing was Yuchi Gong's beloved general and was temporarily transferred to Wei Wentong. Like Wei Wentong, he breathed a sigh of relief because he lost Loufan Pass and wanted to regain Loufan Pass. He cooperated with Wei Wentong tacitly, one led his army off the cliff, and the other sneaked into the pass city to serve as an insider.

Sui soldiers quickly passed through the woods on the hillside. In front of them was a huge white stone, about ten years long, quite like a stone fish half buried in the soil.
Chapter completed!