The personalities of Murong Chui and Murong Ping are different, when Murong Ping was here before, because he was already scared by the Tang Army. Therefore, he only thought about blocking the Tang army in the military capital and not letting them come out. Therefore, the defensive method adopted by Murong Ping was to concentrate heavily outside the military capital pass, forming a large semicircle outside the exit, in an attempt to block the Tang army inside. At the same time, he only asked the generals to guard the camp every day and keep an eye on the Tang army opposite.

But Murong Chui was transferred here before, and after replacing Murong Ping, he immediately changed this approach.

First, he retreated the original encirclement for more than 20 miles, and did not seal this circle, but only maintained an army of 20,000 on the front. As for the rest of the troops, they were placed on both sides of this army, and they rotated with the army in the middle at regular intervals.

Moreover, the two parts of the soldiers and horses placed on the flanks are not mainly staring at the Tang army on the opposite side in peacetime, but constantly training to improve their combat effectiveness. Obviously, this is not just for prevention, Murong Chui's thoughts obviously have an offensive meaning in it.

In addition, every day, Murong Chui had to take people to inspect outside the military capital pass, and he had to stay for a period of time several miles away from the pass. Although he did not attack, it still made the Tang troops in the pass more vigilant.

From Zhongshan Kingdom to Yan County, this section of the defense area was presided over by Murong Chui. Compared with the tense atmosphere in Yan County, in the two places of Wuruan Pass and Changshan Pass, it seems to be much calmer.

"Great King, the people sent out have returned, you guessed right, there is indeed a small road near Changshan Pass. This trail was originally the place where the woodcutters in the mountains passed, although the road is difficult, but if you send a group of elite soldiers to the north from this place, you can go around to the back of Changshan Pass. Moreover, it can also reach the city of Guangchang County. At the end of May, several horsemen from Zhongshan and Changshan quietly rushed to Murong Trai's camp and reported.

Murong Trai was not a person who sat still, as soon as he took over the northern defense line, he actually started to act secretly very early. In his mind, it was really not a good way to stay east of Taihang Mountain like this.

After all, when to fight, and even to what extent, the initiative is in the hands of the Tang Army. Under the condition that his side does not occupy any geographical advantage at all, it becomes very disadvantageous whether it is advancing or retreating.

The best way, of course, is to re-advance the battle line to the north of Taihang Mountain, so that this majestic Taihang will become the best barrier for Yan to defend against the Tang Dynasty. If this idea can be realized, then the strength of the entire Dai Kingdom that is pinned down in places such as the military capital and Puyin will be greatly reduced, so as to effectively support the defense of other places.

So, after heading north from the south, he stayed in Zhongshan Province and Changshan County for a while. In particular, after observing for a long time outside Changshan Pass and Wuruan Pass, he finally decided to find a way from the direction of Changshan Pass.

The reason why we look from the direction of Chang Son Pass and not from the direction of Ngo Nguyen Pass is because Chang Son Pass is located in the southeast of Ngo Nguyen Pass. In the north of Guancheng, there is not only Guangchang County, but also Lingqiu Pass, Lingqiu County, Bottle-shaped Village and other places in the northwest direction.

If you look for a way out from here, even if you can't find a shortcut to Guangchang County, you may be able to find a road to Lingqiu Pass, Lingqiu County and other places. The Wuruan Pass is located at the eastern end of Puyin, from here you can only go west, can only reach the county seat of Guangchang.

Most importantly, because Ngo-Nguyen Pass is located northeast of Chang Son Pass. Therefore, his actions can only be carried out in the place between the two levels, and the chance of being discovered by the Tang Army is very high.

Whether his operation is successful or not this time is all based on secrecy, and if it is discovered, everything will need to be said.

After getting the news at this time, he was very happy in his heart.

"Have you looked into it, and is that really the way possible?"

"The little one found the hunter who lived in the mountains, and after promising a lot of money, they took the little man on a walk. The road can really lead to the city of Guangchang County, especially behind Changshan Pass, the distance is not particularly far! ”

"Very well, you've done a great job this time! You immediately go to the army to select a thousand brave men, and then secretly rush back to Changshan County to standby. When the king's side is ready, he will rush to meet you! Remember, this is too confidential to be known! Murong Chui hurriedly ordered.

"Don't worry, the little one understands!" The man replied, and immediately turned away.

Looking at his departing back, Murong drooped and groaned, and then asked someone to call Yue Wan over.

Although Murong Ping was transferred, Yue Wan did not. Now he is still the number two person in the northern defense line of the Yan Kingdom, under Murong Trai, and after hearing that he was invited, he immediately rushed to Murong Trai's big tent.

Compared with Murong Ping, who has mediocre ability, Yue Wan is more convinced of Murong Chui. After all, he himself is a capable person, but anyone who has the ability does not like to surrender to mediocrity.

"The king summoned, I don't know what to order!?" When she arrived, she saluted.

Because Yan Jun's actions have basically been fixed during this period of time, he will ask such a question.

"Lord Yue doesn't have to be restrained, please come, there is an important matter to discuss! Sit down and listen to me! Murong Chui hurriedly said.

Hearing this, Yue Juan sat down. Then, Murong Trai told all the thoughts and plans in his heart.

"Does the king want to start a war with the Tang Army? However, it was not easy for us to negotiate peace with the Tang Army last year, and if the war starts again, I am afraid it will not be easy to end! Do you need to ask Dazai-sama about this? After listening, Yue Wan couldn't help frowning.

He was very aware of the current situation in Yan Kingdom, he had not really recuperated all these years, and he was already exhausted.

This time, seeing that I finally have a chance to recover my strength, it will be a year before I start fighting again. If you win, it's fine, but if you lose, I'm afraid it's not good!

"Lord Yue, rest assured, this king is sure of victory in this matter. As long as we can achieve our goal and get back Guangchang County and other places, then the offensive and defensive momentum of the Netherlands will be reversed. At that time, it will be the Tang Army that will be defended instead of us, as long as we maintain a small number of troops in the Flying Fox and Puyin Mountains, we will be able to contain a large number of Tang Army soldiers and horses. In this way, the pressure on other places can be relieved, even if Tang Jun is unwilling, what can he do? Seeing his worried look, Murong couldn't help but smile.

"Although the king's words are reasonable, this matter is too important after all, so I'm afraid of what happens!" Yue Wan listened and did not let go of her worries.

"That's why I'm going to discuss this with you! If this operation is to be truly successful, we must divide our troops into two ways! As long as we work together, the war will soon be over. We are not greedy, as long as we take down the Flying Fox and Puyin, we will immediately defend on the spot! If we do this, it's better than waiting for the Tang Army to come over! ”

"What does the king want the officials to do?" Yue Wan thought for a moment and asked.

"In a few days, the king will secretly go south. Let's make an appointment to launch an attack on Changshan Pass, Wuruan Pass and Jundu Pass at the same time on the same day. Especially here, you must have a big momentum, and it is best to attract the attention of the Tang Army to this side. Then, the prince led a brigade of partial divisions, followed the trail to the back of Changshan Pass, and took Changshan Pass first. Once Changshan Pass is taken, the king will immediately enter the county seat of Guangchang, take this county in one fell swoop, gain a firm foothold and then figure out ~ enter! Murong Trai saw that he agreed, and immediately revealed his plan.

Hearing this, Yue Wan fully understood.

In the final analysis, this is a plan to repair the plank road and secretly cross the Chen Cang! Whether it was the attack on his own side, or the soldiers and horses attacking head-on at Changshan Pass and Wuruan Pass, in fact, they were just attracting attention.

The real main force of this operation is actually the detachment led by him personally. It can even be said that the key to success or failure lies entirely in this thousand people.

If there is a decisive battle in the plains, I am afraid that Yue Wan will refuse directly without even thinking about it. After all, compared to the tens of thousands of troops on both sides, this thousand men and horses really mean nothing.

But siege battles are different, especially for attacking these passes in the middle of the mountains, and a thousand men and horses are more than enough. With good use, this goal should be easily achievable.

Once this goal can really be achieved, it will be equivalent to tearing a hole in the border of the Tang Army. And the Yan army was like a wedge, deeply wedged into the territory of the Tang army.

And, most importantly, the Flying Fox is located in Dai County, with Shanggu and Jundu to the east, and Yanmen County and Bottle Village to the west. If you go north from the Flying Fox, you will be able to enter the Datong Basin, which will pose a threat to Dingxiang in the clouds.

Therefore, if such a thoroughfare is taken, basically the Tang army soldiers and horses in Bingzhou and even Shuofang will be contained.

If it goes a little more smoothly and the Yan army takes most of the entire Dai County, then it can go directly around Shanggu County, the northern part of the military capital. At that time, it will be able to form a joint encirclement of the Tang army in Shanggu, and it is impossible to say that it will be able to recapture the capital in one fell swoop.

Although the possibility is uncertain, as Murong Chui said, this kind of risk seems to be worth it compared to holding on to it outside the Taihang Mountain. After all, if you stick to it, there is no possibility at all, and taking the initiative is half the chance of success.