Zhuge Qiao was very smart, Liu Chan said with a smile: "Bosong is right, I just want to teach you how to build the city wall."
While talking, Liu Chan called Zhuge Qiao into the room, then took out a map and said, "Bosong, come and see, this is the map of Tongguan."
Zhuge Qiao has never been to Tongguan, but he has heard a lot about Tongguan.
"Bosong, you have to work hard again," Liu Chan said, pointing to the map: "Tongguan is a naturally dangerous pass, but it is not impregnable. Our Han Dynasty has just captured Guanzhong, and Cao Wei will definitely send troops to attack it soon."
Zhuge Qiao nodded when he heard this, and at the same time he became more serious.
"Here!" Liu Chan pointed to the back of Tongguan City and said, "There is a ravine here. Bo Songke built a city wall on the edge of this ravine and set up gate towers at regular intervals, totaling twelve."<
/p>
"As long as this city wall is built, even if Cao Wei comes to attack," Liu Chan said with a smile, "he can't even think of crossing Tongguan."
"No!"
Zhuge Qiao immediately agreed. Although he had never been to Tongguan, he had heard Zhuge Liang mention it when he was escorting military supplies to Guanzhong. Tongguan was naturally dangerous and easy to defend but difficult to attack.
Now listening to Liu Chan's arrangement, Tongguan will definitely be more stable.
Because this is equivalent to setting up two passes at Tongguan. Even if the Wei army breaks through Tongguan, if such a high wall is built after Tongguan, it will be extremely difficult for the Wei army to break through it, no matter how powerful it is.<
/p>
In fact, Liu Chan already had this idea when he was in Tongguan.
It was just because the war was tense at that time, and I hurried back to Chang'an later, I was delayed for a while.
Now that we know that the battle between Wu and Wei will end soon, there is no need to think about it. Cao Wei will mobilize troops and horses to attack Guanzhong sooner or later, because Cao Wei will definitely be reluctant to lose Guanzhong.
He knows the topography of Tongguan.
And he still remembered that hundreds of years later, in the Tang Dynasty, an additional dangerous pass was built behind Tongguan, called the Twelve Connected City. These twelve connected cities were actually twelve watchtowers built on the forbidden ditch.
This forms Tongguan’s second line of defense.
This forbidden ditch was also named because the empress Wu Zetian once ordered that no one could cross the forbidden ditch without authorization.
Now that the Han Dynasty occupies Guanzhong, it needs time to recuperate, so it is urgent to strengthen the several passes into Guanzhong.
June 13, 228 AD.
Tongguan——
Except for the two thousand Han troops who were left behind and were stationed at the head of Tongguan City, the rest of the soldiers were all transferred to the forbidden ditch.
Carrying sand, making bricks, and building walls, the soldiers were very busy.
"General Liao!" Zhuge Qiao said with a smile: "These twelve consecutive cities will be handed over to the general."
"Don't worry, Bo Song!" Liao Hua said: "Liao is responsible for guarding Tongguan. He must know the importance of Tongguan to the Han Dynasty. Once your majesty's twelve consecutive cities are built, Tongguan will definitely be impregnable. This will also help Liao guard the pass."<
/p>
"Thank you, General!"
Zhuge Qiao was very happy. This time he came with the emperor's order, but he was not only responsible for strengthening Tongguan's city defense.
After all, if Cao Wei wants to enter Guanzhong, in addition to Tongguan, there are also Wuguan and Pubanjin.
After Tongguan has been strengthened, if Pubanjin or Wuguan were captured by Cao Wei, no matter how strong Tongguan is, it will be in vain.
Therefore, the task Liu Chan gave him was to teach the cement making methods to the guards at Tongguan, Wuguan and Pubanjin, because all three passes needed to be reinforced.
Now that Tongguan has started construction, he needs to go to Wuguan and Pubanjin Pass.
Liu Chan has instructions for these three levels.
In addition to building a twelve-linked city on the forbidden ditch, Tongguan also needs to use cement to repair the city wall of Tongguan.
As for Wuguan and Pubanjin, Wuguan naturally uses cement to reinforce the city walls. The main reason is that Liu Chan has never been to Wuguan, but he has to teach the Wuguan guard Wang Ping the method of making lime cement.
But Pu Banjin, Liu Chan gave a special explanation.
Pubanjin is located at the ferry of the Yellow River.
Although Liu Chan has never been to Pubanjin, he can guess what the river bank is, so he asked Zhuge Qiao to tell Pubanjin guard Gao Xiang to use cement concrete to build a dam along the river bank in time. This can be regarded as a gift to Pubanjin.
, add a line of defense.
In the month of June, Zhuge Qiao first went to Tongguan, then to Wuguan, and finally to Pubanjin.
Pu Banjin and Liu Chan guessed pretty much the same.
Because most of the Yellow River has fast currents, the terrain of Pubanjin is slightly flatter, and the river water is naturally not that fast, making it an excellent place to cross the river.
June 27.
Morning.
Gao Xiang led Zhuge Qiao for a long walk along the river bank.
Looking at the wide Yellow River, Gao Xiang said with a smile: "After Bo Song returns to the capital, please tell your majesty to reassure him that I, Gao Xiang, will be guarding Pubanjin, and everything will be safe. Even if Cao Wei comes with thousands of troops, I, Gao Xiang, will not fail."
Let them never come back."
Gao Xiang was somewhat resistant to building embankments.
After all, Pubanjin is the only place where you can cross the river.
There is the broad Yellow River in front and the dangerous Pubanjin Pass in the back. It is not that easy for Cao Wei to cross the Yellow River easily. Even if they can cross the river, Pubanjin is still guarded by five thousand Han troops.
What's more, Guo Wei only led 3,000 new troops before, making it difficult for Cao Rui's 20,000 elite troops to move forward.
"General Gao!" Zhuge Qiao said with a smile: "Your Majesty asked the general to build more dams, not because he didn't trust the general, but because he wanted Pubanjin to be more indestructible, and he hoped that the general would act according to his orders."
Zhuge Qiao is Liu Chan's confidant, and what he says represents Liu Chan.
Gao Xiang originally wanted to use the natural danger of the Yellow River as an excuse to refuse to build a dam, but after looking around, Zhuge Qiao still insisted that the emperor's order must be strictly implemented.
Helpless——
Gao Xiang had no choice but to agree to build an additional cement dam on the edge of the Yellow River in front of Pubanjin.
Because Zhuge Qiao had noticed that Gao Xiang did not seem to be very willing to build it, he did not rush to leave Pubanjin, but chose to stay at Pubanjin Ferry for the time being to supervise.
Gao Xiang is really helpless.
This Zhuge Qiao has a special status. In addition to being a close confidant of the emperor, he is also the adopted son of Prime Minister Zhuge Liang. With this kid staying here to supervise, he will not be able to find opportunities even if he wants to be passive and lazy.
The first day of July.
On the edge of Pubanjin River Beach, thousands of Han troops, like the defenders of Tongguan, were busy nervously on the edge of the Yellow River.
It’s just that Pubanjin is different from Tongguan. Tongguan built a city wall on the forbidden ditch.
Pubanjin is going to build a dike.
This embankment is not long, about seventy or eighty meters, and the terrain is relatively flat for this distance. If you cross the river from the east bank, you can only get ashore from this part.
After Zhuge Qiao inspected the terrain, he asked Gao Xiang to build a river embankment five meters wide and nine meters high at this distance. Only in the middle was a city gate opened. The two ends of the embankment were directly connected to Pubanjinguan. The buildings are connected.
Once the city is built on this embankment, and if you want to cross the river from the east bank and enter Guanzhong, there will be only one city gate left, which is the only passable place.
After half a month of construction, Gao Xiang also found that it was very necessary to build this dam.
Although Pubanjin has natural dangers from the Yellow River, if this dike is added, the Han army will stick to the Pubanjin ferry from now on, and it will add another weight.
July 25th.
Chencang Han Army Camp.
"Okay, okay!"
Zhuge Liang shouted hello several times, and he said to Zhuge Qiao excitedly: "My son's plan is very good. As a father, I will definitely break Chen Cang."
......
......
This chapter has been completed!