"Hurry, hurry! Hurry up and climb up. The bamboo tube is coming, be careful to avoid it! Don't get plugged in! ”

Late at night on December 16 in the first year of Yanxing. Although the sun has long since finished work, under the illumination of countless torches and large candlesticks, the flat ground outside the southeast side of Baishui Pass is still as graceful as day. Countless soldiers of the Shu Han Nanzhong Army and the Yulin Army are working hard.

Speaking of which, among the two long-distance troops of Shu Han, although in terms of road conditions alone. Huo Yi's journey was much easier than Guan Yi's one-Deng Ai had just repaired it once. But in terms of the overall difficulty of the march, the difficulty of Huo Yi's journey is actually more difficult and dangerous than Guan Yi.

The reason why I say this is because whether it is Jiangyou or Qiaotou, until Baishui Pass, these strongholds were garrisoned by a small number of Wei troops. It is not difficult to take these strongholds, but the difficulty is that Huo Yijun can't let go of any Wei army along the way, otherwise the news will leak. And once the news leaks, whether it is Huo Yijun or Guan Yijun, the end will be the same: they will be ambushed by heavy troops and the whole army will be annihilated.

Fortunately, Huo Yi led the Nanzhong Corps. This army, which is very good at climbing mountains and mountains, may be less disciplined than other legions of Shu Han, but it is the best mountain infantry of this era.

Along the way, Huo Yi's strategy was to insert a small force, not to take the stronghold, but to climb directly from the mountain peak near the stronghold, and then hold the exit to intercept and kill the Wei army that fled in a hurry due to the attack of the main force. It is precisely because of the characteristics of the soldiers in Nanzhong that Huo Yijun came to Baishui Pass all the way without danger, and also ensured the safety of the Guan Yi army from the side.

In a hurry, Huo Yi's troops arrived at Baishui Pass on December 13 (the 15th day of the Xindu Attack), and then repeated the old tricks and successfully took Baishui Pass.

If it is said that Yang'an Pass is related to the grain route of the Sword Pavilion camp, its guard Huangfu Min still has something to do every few days. Then the Baishui guard will buy Wang Mai and sit here for two months. The humid climate in the mountains has made him moss!

But Huo Yi, who has accompanied the emperor since he was a child, has a personality that pursues perfection extremely much, and he still exerted all his strength in the face of such an unsuspecting pass as Baishui Pass. This time, none of the 2,000 defenders of Baishui Pass could escape. This led to Zhonghui's side, and it was not until the early morning of the 16th that the grain team at Yang'an Pass did not appear on time, and they began to be alert.

After taking Baishui Pass, Huo Yi did the same thing as Guan Yi in Yang'an Pass: reinforcing the level.

Because Yang'an Pass is good, or Baishui Pass. Its main function is to defend against enemies from the north, so the north-facing side is much stronger. But now that the situation has been reversed, they want to use the south side of these two levels to lock the enemy, so they have to reinforce the south side of the two levels.

What to reinforce it with? Cement!

Yes, cement! As a traverser, especially those who have been deeply involved in Fuling County for seven years, everything is a traverser who is preparing for today. In the limestone environment of Fuling County, cement has long been produced by Guan Yi. It's just that because Shu Han's national strength is too weak, just like stirrups, he doesn't dare to promote these things widely.

Countless large trees have been cut down, and the people of Nanzhong, who are familiar with the characteristics of trees, are all good carpenters. They quickly turned the trunk into large planks of wood - this is the wooden model.

Along both sides of the southern city wall of Baishui Pass, one after another wooden molds were spliced together, and the height of the wooden molds gradually reached one-third of the height of the city wall, and some soldiers inserted the tall bamboo tubes into the gap between the city wall and the wooden molds according to a certain interval. After the craftsmen reinforced the wooden molds for the last time, all the scaffolding was removed. Then, from above the city wall, streams of freshly prepared cement slurry were poured into the wooden molds against the city wall......

What Guan Yi made was Portland cement, commonly known as Portland cement. For this kind of cement, the initial setting time only needs forty or fifty minutes, and the final setting time is generally not more than 7 hours. Even if this damp and cold weather caused the cement setting time to slow down, one day was enough time for Huo Yi and Guan Yi to add a layer of bamboo and cement walls to their city walls.

Not only that, because the terrain on the south side of these two checkpoints is relatively gentle, Huo Yi, under the guidance of Ma Guo, also sent people to dig a pit on the flat ground south of the checkpoint.

The pits are dug here in the shape of a cuboid, each pit is at least three meters deep, and then inserted into a bamboo tube or tree trunk of more than five meters, and then cement is poured into the pit. After it is flush with the ground, a new bamboo tube is used to connect the bamboo tube that has been inserted in the pit, and the two are bound with iron wire. The wooden mold is then built and cement is poured into the mold......

In just three days, the 13,000 people under Huo Yi's command were divided into three teams to work day and night, and finally in the early morning of the 17th, except for the city wall of Baishuiguan, which was successfully covered with a cement wall coat. Within three miles of the entire south side of Baishui Pass, there are all large and small, uneven rectangular cement walls.

The exposed part of the concrete wall is no more than two meters high, less than half a meter wide, and no more than five meters long. They don't really stop a person or a few people from moving forward, it's just a little more detour. But so many layers of intricate cement walls are a complete nightmare for the army - they can't spread their formation, and in the face of attack targets, the troops that can be invested at one time have been weakened to the extreme!

"Report ~~ The king, General Annan, and General Zhenxi Zhonglang (Ma Jie), the scouts scattered by our army are reported. Twenty miles southeast of the gate, a large group of enemy troops had already been discovered. Looking at the length of its torches, there are about 10,000 people! ”

"Hehehe, it's only here at this time, it's too late! Herald! Don't worry about the unfinished cement wall, the whole team calls it a day and retreats into the gate! ”

"Whoa!"

…….

On December 15, the army in charge of receiving the food team of the Sword Pavilion battalion failed to wait for its own friendly troops.

However, due to sitting in the vicinity of the Sword Pavilion for two months, all the officers and men of Zhong Huijun were extremely vigilant. Therefore, the military who led the team to answer the meeting also laughed at his subordinates, saying that those lazy insects in Yang'an Pass must have fallen asleep.

By the end of the 16th, the grain team at Yang'an Pass had still not arrived, and Xiahou Xian, who was in charge of the logistics of the whole army, realized that something was wrong, and hurriedly sent people to Yang'an Pass to investigate on the one hand, and sent people to report to Zhonghui on the other hand. And because the Sword Pavilion camp is too large, the sources of each army are complicated. By the time the bell received the report, it was already two quarters past the clock on the 16th (eight o'clock in the morning).

Zhong Hui, who received the report, immediately knew that something was wrong: Zhong Hui was also a master of the moment, and he had a wonderful performance when he assisted Sima Zhao to quell the third rebellion of Shouchun launched by Zhuge Dan. Such a person may be deceived for a while, but if the grain team on this side is a whole day late, does it mean that it is difficult to get Zhonghui?

"It's broken! I'm really blinded by lard. Jiang Wei has defected to the capital of Xishu for more than 30 years, and he has long been the general of Xishu. If people want to fall, they will already fall. How did you wait until now? What to say to give some time to clean up the resistance, MD himself is the most stubborn resistance! ”

After thinking clearly about Jiang Wei's recent unusualness, the next thought came to his mind, and Zhong Hui couldn't help but tremble all over: "Yang'an Pass, you won't lose it, right?" ”

Thinking of this, Zhong will immediately make a decision: surrender the general Jiang Shu and lead 3,000 Shu Han troops to be the vanguard. The later general Xiahou Xian led an army of 10,000 as the rear. Go to Yang'an Pass to investigate now!

Soon after sending this team, Zhong Hui, who had recovered his mind a little, suddenly slapped his head suddenly, and then sent the protector Hu Lie, led an army of 10,000, and immediately advanced towards Baishui Pass.

The Sword Pavilion is about more than ninety miles away from Baishui Pass. Hu Lie led his army to set off early in the morning, ran wildly all the way, and finally arrived at Baishui Pass in the early morning of the 17th. The whole army held up the torches and looked at it, and was immediately dumbfounded.

The Sword Pavilion is a little farther away from the road of Yang'an Pass, more than two hundred miles. Therefore, Jiang Shu's army did not arrive at Yang'an Pass until noon on the 18th. After seeing the Chinese character banner on the city from a distance, Jiang Shu only felt bitter......

On the 19th, Zhonghui received a report from Hu Lie that Baishui Pass was lost!

On the 20th, Xiahou Xian reported that Yang'an Pass was lost!

Zhong Hui immediately ordered the whole army to count the grain and grass and save the use of grain. The official in charge of managing the grain and grass told him in a panic that even from now on, the daily ration of the whole army will be reduced by one-third. At present, the food stored in the Sword Pavilion camp is only enough for the whole army to eat for fifteen days!

At this point, Guan Yi of Yang'an Pass, Huo Yi of Baishui Pass, and Jiang Wei of Sword Pavilion formed a triangle with three fulcrums. The Bashan Shushui in the territory of the Shu Han Kingdom formed the three sides of the triangle. Firmly trapped the 150,000 people of Zhonghui in this narrow valley.

The siege of Baiqi in the Battle of Changping has finally reappeared in the world!