Lü Hu was a separatist warlord at the end of the Later Zhao Dynasty in the past. Later, when he became the general of Ran Wei, he rebelled against Jiang Zuo. But only a few months later, he betrayed Jiang Zuo again and surrendered to Wang Wu, the assassin of Youzhou in Later Zhao. This Wang Wu was also a separatist warlord, and shortly after Lü Hu surrendered to him, Wang Wu was killed by his generals. And Lu Hu took advantage of this time to kill the general and proclaimed himself King An.

In the tenth year of Yonghe, Lü Hu led the army to surrender to the Yan State, and was named the Taishou of Hanoi by the Yan State until now. Last year, Gao Chang, who was also a general of Yan, was defeated by the Yan State and fled to Xingyang with the remnants.

Xingyang is separated from Hanoi by the Yellow River, and Gao Chang was killed in February this year, while Lü Hu took the opportunity to swallow up the remnants of his army. It was against this background that Lu Hu wrote a letter to surrender.

There is no doubt that this time he would write such a letter, apparently because he was affected by the whole situation in the world.

First, last year, the Yan State was defeated in Yanmen and other places, and was expelled from the west of Taihang Mountain by the Tang army. Then, the Tang army defeated Yan in Henan County, and basically took the entire Henan County into its hands.

As a result, most of Hanoi County was sandwiched between Shangdang and Henan County.

Obviously, under such circumstances, Lu Hu felt a very serious crisis. At the same time, because Murong Ke ordered the establishment of several defense lines to defend against the Tang army and the Jin army a few years ago, the one facing the Tang army such as Shangdang started in Hanoi County.

As a result, the Yan army stationed more than 20,000 troops in Hanoi County, which made Lu Hu, who had always regarded Hanoi County as his own land, very dissatisfied. He began to worry about whether Yan Guo would take the opportunity to push himself to the end and give himself a lift.

At the same time, people like him originally lived by the direction of the wind, and they were swaying every day. Under the situation at this time, he felt that it was no longer safe to be tied to Yan Guo. Therefore, it is better to find a way out before the critical moment.

With Tang troops on both sides, there is naturally only one way out for him, and that is to surrender to Li Xin. Of course, he also knew that if he didn't have enough benefits to impress Li Xin, he was afraid that this matter would not be able to be done easily.

After all, once the Tang army soldiers came out of the bowl city pass and Yi pass, it would immediately cause a big war with the Yan country. If it was just for himself, I am afraid that Li Xin would not be willing to take such a risk.

Therefore, Lu Hu thought of a good way, that is, he led the Tang army north to attack the capital of Yan State. This can be regarded as the sincerity of one's own surrender, or rather, the name of the petition!

And when it comes to his idea, he has to talk about the geographical location between Hanoi County and Ye Thanh.

There are nine counties in Hanoi County, and the county is located in Yewang County, which is also where Lu Hu's old nest is located. This place is located in the north of the Yellow River, south of Taihang Mountain, east of Wangwu Mountain, and Luoyang is across the river.

Hanoi County, Henan County, Xingyang County, and Wei County, where Yecheng is located, belong to Sizhou.

Basically, the jurisdiction of Hanoi County was in the vicinity of Qinyang and Jiaozuo in later generations. If you go north from Hanoi, you will find Ki. A little further north of Ji County, you will reach Wei County, which is also the place where Yecheng, the capital of Yan Kingdom, is located.

Yecheng is also an ancient capital, since the Warring States period Wei has established its capital here. It is located on the edge of Linzhang water, and the west is Taihang Mountain. If you go north from Yewang County, Hanoi County, the distance is less than 500 miles.

On top of that, the terrain is flat and there are no mountains to keep it in the way. Therefore, if you use cavalry to carry out a quick raid, you can almost kill the city of Yedu in one day and one night!

Of course, during this period, you have to pass through many states and counties, especially many places defended by the Yan army.

There is no doubt that if you follow Lu Hu's idea, it will be easier to attack Daiguo. After all, the defense line set up by Murong Ke was basically concentrated on the line east of Taihang Mountain, and no matter where the Tang army came from, it would inevitably face the enemy's obstruction.

However, if there was Lu Hu's internal response, it would be much easier to send troops from the south of Shangdang and Yiguan. Once Hanoi County was taken, the Tang army had a long-term foothold east of the Taihang Mountains.

This threat, for Yan Guo, is probably greater than the Tang army in Shangdang and other places.

Therefore, for Li Xin, this is indeed an idea worthy of his own careful consideration. After all, after solving the Dai Kingdom, the next target will definitely be the Yan Kingdom. If you take the first step, it is also a good thing, and you can make your previous layout more perfect.

"Regardless of whether Lu Hu is worthy of our trust or not, his idea is still good! What the last general is worried about now is whether Lu Hu really wants to submit to us, or whether this is just a ploy! Liu Xiaohai was obviously more cautious in his heart.

"What you mean is that Lu Hu may have pretended to surrender, but in fact lured us out of the mountain!" Hearing this, Li Xin couldn't help frowning.

"I can't rule out the possibility of this! After all, now that Yan Guo is doing nothing about us, Lu Hu has always been unvirtuous. If it was for the sake of wealth, it would really be possible to collude with Murong Ke and them to design us! Liu Xiaohai nodded and said worriedly.

Li Xin didn't say anything for a while, just thought quietly for a while.

"It's better to leave this matter to Tu Qi to investigate! In addition, although this may be a trap, it is also an opportunity for us. Therefore, we might as well give it a shot! After thinking about it, Li Xin said.

"His Highness's words are reasonable, but this matter still needs to be cautious!" Liu Xiaohai nodded and replied.

After making up his mind, Li Xin began to discuss with him a specific plan of action. At the same time, Tu Qi, who received the order, also began to mobilize the spies of the Ministry Division to find out about Lu Hu's actions.

In Yewang City, Lu Hu was restless for the past two days. Ever since he sent out that secret letter, he had been anxious and hesitant.

First, he was worried that Li Xin would ignore him and completely shatter his idea. Second, he was worried that this matter would be known to Yan Guo, in that case, I am afraid that the Yan army would come to attack him immediately.

As for the matter of submission itself, he didn't care at all, after all, he had been very proficient in playing all these years.

After waiting anxiously for several days, a man claiming to be a messenger of the Tang Army finally appeared in front of him.

"The messenger is from afar, I don't know if His Royal Highness King Tang has made a decision?" Lu Hu didn't know anything about this person, but he still treated him respectfully.

"His Highness already knows what the letter says! His Royal Highness is very pleased that Lord Fujun can abandon the darkness and turn to the light, return to my Tang Dynasty, and be willing to fight for the forerunner~ Yan Kingdom! "The person who came was a person from the Ministry Division, and he rushed to Yewang County after Tu Qi personally confessed.

"That's good, that's good! In that case, I don't know when His Highness will send troops? Hearing this, Lu Hu couldn't help but breathe a sigh of relief and hurriedly asked.

"The matter of cutting down the Yan is very important, so His Highness is also very cautious. The explanation for you is all in this bag! The messenger took a black bag from his body and gave it to him.

Lu Hu hurriedly took it, opened it and looked at it carefully for a while, and then said: "Please reply to His Royal Highness King Tang, and say that Lu will definitely get things done, and welcome His Royal Highness King Tang!" ”

After the envoy left, Lu Hu began to think about it. Li Xin did give him a task, and this task was not light.

If this task is a failure, not only will the matter of wanting to return to the Tang Dynasty be blown up, but I am afraid that even the Yan Kingdom will not be able to stay on the side of Yan Guo.

So, there's a lot of risk-taking involved. But for Lu Hu, now that the situation between Tang and Yan has reversed, although Da Yan is big, it seems that he has entered old age. On the contrary, Datang is vigorous and enterprising.

Therefore, after thinking about coming and going, Lu Hu finally decided to do what Li Xin requested.

Li Xin, who was already determined to go back to Chang'an, decided not to leave because of this incident. Of course, on the surface, he still left, but after arriving in Hedong, he quietly stayed.

Then, with Deng Qiang, Zhang Oyster and the Bupo Army, he marched all the way east, and quietly rushed to Yiguan to settle down.

At the same time, Liu Xiaohai also started to act in the party. On the one hand, he mobilized his troops and horses with great fanfare, and made a posture of marching out of the Kanto region from Jingcheng and Fukou.

On the other hand, he secretly transferred Lu Guang to Gaodu County, and ordered him to lead 5,000 soldiers and horses to quietly rush to Tianjing Pass and Wanzi City Pass to stand by.

At the same time, there are also Kamiya and Daigun. Liao Chuan, who had said that he would not go out, suddenly received Li Xin's order, and after learning the whole plan, he also began to join in the overall situation.

Generally speaking, it seems that they are going to counterattack Yan State in a big way to retaliate for this war. The focus of the attack, judging from this situation, should be located in the northern section of Taihang Mountain.

Since the battle of the Tang Dynasty had just ended at this time, and Murong Wen's army had just been defeated, it was not long ago. Therefore, the Yan court has always been worried that the Tang army will take the opportunity to retaliate against itself, otherwise it will not strengthen the vigilance in various places.

Therefore, as soon as Murong Ke and the others learned that the Tang army was moving frequently in the north and west, they naturally thought that the Tang army was going to act. Therefore, most of the court's attention was focused on that direction.

As for the reason why they don't pay much attention to these places in Hanoi County, it is because it is very close to Yecheng County, and it is not far from Xingyang County. Therefore, I subconsciously thought that even if the Tang Army attacked, it would avoid such a place that was blocked on both sides.

After all, once the Tang army came out of the mountain, it was very likely that it would be blocked by the Yan army that rushed to reinforce from Yecheng and Xingyang.