Yindiguan, less than forty miles away from Huoyi, is located at the intersection of Xihe County and Linfen County, the width of the city is only three miles, it is the narrowest place in the Bird Mouse Valley, and it is also the only way to walk in the north and south of Bingzhou.

Yindi Pass was built in the Northern Wei Dynasty, in fact, it is to build a city wall at both ends of the canyon to hold the north and south of the canyon, which is the most difficult and strategically important pass in the whole Bird Mouse Valley. It is better than Jiexiu County in the north and Huoyi in the south.

The strategic intention of the Northern Sui is very obvious at present, that is, Li Jing will contain the Tang army in Taiyuan, and then Shen Guang will capture the Bird Mouse Valley all the way from south to north, so as to cut off the connection between Taiyuan City and the southern part of Bingzhou, and then occupy the entire territory of Bingzhou outside Taiyuan City as quickly as possible.

This is the huge loophole in the Tang army's plan to defend Taiyuan City, which lacks an overall view and does not accommodate the entire annexation of the state into the plan to defend Taiyuan City.

And the key to the entire annexation of the state is the Bird Mouse Valley, as long as the Sui army captures this strategic place, Taiyuan will become an isolated city.

The reason why Shen Guang did not make a large number of replacements of the defenders of Huoyi and let them continue to defend the city was to prevent the defenders of the Yindi Pass from discovering that Huoyi was lost, so as to create conditions for the capture of the Yindi Pass.

"Do you really want to conquer and annex states? The whole of the state? Early the next morning, Pei Yang was escorted north by Shen Guang. He asked yesterday's question again.

Shen Guang smiled and said, "We thought that the Battle of Bingzhou would be a war of great sacrifices, alas! Now, it seems too simple. His Royal Highness the King of Qin was originally worried that Pei Lian's arrival would change the political situation in Bingzhou, so he also prepared many means for this, but now it seems that the literati defending the city is to cure headaches and foot pains...... It is really ridiculous to naively think that the battle of Bingzhou is limited to Taiyuan, and to naively think that we will uproot one fortified city after another from north to south, so as to give him the opportunity to retreat south step by step! ”

"At this level, Xiangguo is still in the country, and any of us can afford it. You say, they are all surnamed Pei, why is this Pei Lin so much worse than Pei Ju and Pei Yun? In my opinion, this Pei Lin should be called Pei Prostitute! A prostitute who specializes in accompanying Li Yuan! ”

Speaking of this, Shen Guang suddenly seemed to have discovered a new continent, and his eyebrows fluttered and gossiped: "Your Highness used to say that Li Yuan and Pei Zhu were 'close friends in the boudoir', but now it seems that these two really have a leg." ”

Shen Guang's expression at this time was quite obscene, his eyebrows jumped up and down, and he said something serious.

"How so?" Niu Jinda, who was accompanying him, asked curiously.

Shen Guang glanced at him twice, and analyzed with the veteran experience of the holy hand in the love field: "How can Pei prostitute be worthy of Xiangguo at this level?" If we arrest Pei prostitute, do you think Li Yuan will come to him with an angry hair and a red face? Speaking of which, I really admire the person who chose the name for Pei prostitute, if he was really prescient, Pei prostitute accompanied Li Yuan, isn't it the Qinglou prostitute who accompanies the guest? ”

"Li Jiancheng and Li Shimin are ten years apart, and in the middle, it is precisely the stage when Li Yuan and Pei prostitute know each other, will there be any story?" Niu Jinda grinned.

Shen Guang leaned closer and said, "Brother Niu is still eye-catching!" It must be that Li Yuan and Pei prostitute fell in love, the two have been in love for ten years, Li Yuan dislikes Pei prostitute for being old and decrepit, and then abandoned it from beginning to end...... Poor generation of beauties! ”

Mai Mengcai smiled and said, "But it's also compensated, isn't it?" ”

"That's right! Otherwise, how could Pei prostitute be worthy of Shang Shu's shot. ”

"As soon as you explain it, it's smooth."

“……”

Pei Yang's face darkened!

I almost threw up, and I was a beautiful woman

He found that these Sui army generals were too capable of, chattering endlessly along the way, and gossiping about Li Yuan and Pei prostitutes.

One by one, they are adding branches and leaves, and on the basis of Shen Guang's creation, they interpret the confidant relationship between Li Yuan and Pei Prostitute into a beautiful and romantic love story.

"Brother Pei, was Pei prostitute particularly handsome when she was young?"

"This, Sangkook is indeed very handsome!" Pei Yang was also suspicious.

"Haha! Look at you! That's right......"

“……”

Yin Di Pass, a place where soldiers must fight, Pei Lin faction has 3,000 elite soldiers to guard, the guard is named Duan Lun, is the son of the late Duan Wenzhen, the secretary of the military department of the Great Sui, the son-in-law of Tang Gaozu Li Yuan, Princess Shang Gaomi, is also a young brave general with high martial arts, and the young man is famous for his chivalrous spirit.

Duan Lun is very dedicated, patrolling the city as usual, he has received an urgent report, the Sui army is preparing to seize Taiyuan with Li Tang, as a strategic point, Yin Di Pass is particularly important, Duan Lun is also doubly vigilant.

But, don't forget.

The battle report said that the Sui army wanted to seize Taiyuan, not the entire state!

Duan Lun inspects Beicheng every day. In the direction of Nancheng, it is still the same. Besides, Taiyuan has not yet started a war, so Duan Lun also thinks that Yindi Pass is the rear, although he is vigilant, he is far from being ready for war.

At this time, it had to be reported that Pei Yang, the guard general of Huoyi, was ordered to reinforce Taiyuan, and when he saw that Pei Yang was the leader, Duan Lun did not embarrass them, and said to the soldiers: "Let them enter the city." ”

The two thousand troops marched into the Yin Di Pass, and Duan Lun went down to the city and asked, "General Pei, don't you need to guard Huoyi?" ”

"The Sui army appeared in Jiangxian, and General Li Shentong, the defender of Hedong City, has sent Hou Junji to take over the defense of Huoyi."

Duan Lun exclaimed, "What? The Sui army also appeared in the south? ”

"That's right, General Duan asked all the soldiers at the head of the city to come down, I have something important to announce!"

Although this order was a bit unreasonable, Duan Lun was stunned by the news of the Sui army's invasion of Hedong County, thinking that Pei Yang had brought some important military information, and immediately turned around and ordered: "Quickly order all the soldiers at the head of the city to go down to the city." ”

There were a thousand soldiers stationed on the city wall, they were condescending, and they would pose a great threat to the Sui army's capture of Guancheng, although Pei Yang also knew the consequences of the soldiers withdrawing Guancheng, but a sharp dagger was against his heart, and he had to follow the order.

When the whole army converged, the 2,000 Sui troops tore off their disguises, and they drew their horizontal knives to slash the defenders of the city, and the Tang army was suddenly shocked into a great chaos.

Duan Lun was stunned and furious: "Pei Yang, you ......"

Before the words fell, Niu Jinda had been knocked to the ground and became a prisoner.

Niu Jinda threw it to Sui Jun and said loudly: "Come with me!" ”

He swung his sword from the fungus path to the city, and in a few moments, five or six more people died under his sword.

Tang Jun saw that he was fierce and abnormal, and they all shouted and fled in all directions, Niu Jinda roared, rushed up to intercept the deputy general, fought with him, and hacked the opponent to the ground with only a few knives.

"Kill me!"

Shen Guang ordered loudly, and he was fierce and did not get off the cow.

The Sui army cheered and killed on the city wall, most of the Tang soldiers on the city wall had already gone down the city, and a very small number of soldiers who had not yet gone down the city were frightened by Niu Jinda and Shen Guang who rushed to the city, and they ran away from the ground with a rolling belt, and the Sui army quickly occupied the southern city wall, at this time, more than 3,000 'caravans' following behind left the 'goods' and were coming from several miles away.

The Sui army took advantage of the situation to kill the northern city, and the Yin Di Pass was quickly occupied by the Sui army, and the three thousand defenders surrendered except for the main general Duan Lun, who was captured, and the deputy general and some of the defenders were killed.

After the Sui army seized the two strategic places of Huoyi County and Yindiguan, it meant that the Sui army had completely controlled the most dangerous Bird Mouse Valley in Bingzhou, and although Jiexiu County in the northernmost part had garrisons and its strategic position was also very important, its strategic value was a material transit city, and it did not have much advantage in military terms.

Although military forts such as Jiahu Fort also had geographical advantages, because of the small number of troops stationed and because of the 'caravans' stationed separately, they could not withstand the pressure of the Sui army at all, and they were crushed into powder after a little resistance, and the Sui army went all the way north, and the Tang army forts surrendered one after another along the way.

The news quickly spread to Jiexiu, and the garrison immediately flew to Taiyuan for help.