Wei Yan pursed his lips and said, "It is indeed difficult to attack the city defended by 20,000 people with 10,000 cavalry, and it is indeed difficult to capture it. What's more, our army's cavalry is noble, and attacking the city with cavalry is really the next strategy.

Therefore, if you want to take down the high slave, you need to outwit it, not be able to defeat it, hussar general, I don't know what the ability of the high slave guard is? ”

Ma Chao replied: "The name of the Gao Nu guard is Manro, and he is the first general under Bu Dugen, and his ability is mediocre, but Wei has already set a battle strategy that cannot be held, and this person is loyal to Kebineng, so he wants to lure him out, but he is afraid of difficulties."

Moreover, Gaonu City was an important military town to defend the Hu people in the north in the past, the city was already tall and strong, and the Xianbei army had been strengthened in recent months, and it would take a long time to attack Gaonu with back artillery. ”

"Then that's a bit of a problem."

"If we don't have all the soldiers and horses, we will send troops together to attack the four doors with return artillery, so it is not difficult to take down the high slaves, we only have 10,000 cavalry now, and it is not easy to take down the high slaves."

After listening to the words of the generals, Liu Chan secretly thought in his heart: "Gaonu is Yan'an in later generations, and it is located on the Loess Plateau, and the people in later generations will live in caves, so maybe they can ......."

Thinking of this, Liu Chan ordered: "The battle situation in Northern Xinjiang may change at any time, and it is urgent to send troops, although it is difficult to capture Gaonu, but after waiting to go, he said, General Meng Qi, you immediately select 10,000 elite cavalry in the army, and select others who are good at digging caves, prepare enough shovels, and find some craftsmen to go with the army." ”

After listening to Liu Chan's words, Ma Chao suddenly understood: "Your Majesty is planning to dig a tunnel to attack the city?" ”

Liu Chan nodded and said: "Gaonu is located in the loess plain, its loess layer is quite deep, dozens of meters, its soil is easy to dig but not easy to collapse, suitable for digging tunnels." If you break into the city by digging tunnels, high slaves can go down. ”

When Ma Chao heard this, he gave up his hand: "The last general will go and prepare!" ”

Three days have passed in the blink of an eye.

In the past three days, Ma Chao has prepared his soldiers and horses, 10,000 elite cavalry, and also selected 100 people from nearby cities who are good at digging caves. There are also dozens of people who are good at weaving baskets.

After the soldiers and horses were ready, Liu Chan arrived in Xinping on the fifth day and officially swore to go on the expedition.

The reason why the cavalry rode all the way north, and cut the wicker reserves along the way, and the reason why they cut the wicker halfway, rather than after arriving at Gaonu, was mainly because they were worried that the movement would be detected by the enemy, so they guessed the plan and made preparations.

Ten days later, Liu Chan led his troops to Gaonu.

Originally, at the speed of cavalry, he rode his horse all the way and could reach Gaonu in three days at most, but because the Han army brought grain and grass baggage, the speed was not fast.

After the soldiers and horses arrived at Gaonu, Liu Chan did not rush to set up camp, but let the soldiers rest several miles away from Gaonu. Then he called the people who were good at digging caves.

Liu Chan said to the people: "You are good at digging caves, and see if this soil is suitable for digging tunnels!" ”

When the people heard this, they took their hoes and shovels and dug into the ground.

After digging for about half an hour, the people returned one after another, and an elderly person said to Liu Chan: "Your Majesty, the loess layer here is quite thick, the soil layer is tight but not hard, easy to dig and not easy to collapse. ”

"Good!" Liu Chan was overjoyed when he heard this, and said: "If you can successfully dig through the tunnel to Gaonu, I will be rewarded." ”

"Thank you, Your Majesty!" When the people heard this, they were overjoyed.

The old man said, "It's easy to dig tunnels, but the distance and direction need to be planned, and it's not good if you dig it wrong." ”

Liu Chan smiled: "Don't worry about this, you just need to dig the matter, the length, and the direction will be planned." ”

Then Liu Chan summoned the generals and said: "The people have surveyed, and the location can dig tunnels, but digging tunnels will produce a lot of soil, which is easy to be detected by the enemy troops in Gaonu City."

Therefore, the camp must be built so as not to be detected by the enemy when the tunnel is unearthed. The generals can scatter around and observe the terrain to find a suitable place to camp. ”

"No!" When the generals heard this, they scattered around with some cavalry, looking for a suitable place to camp around the city of Gaonu.

After two hours, the congregation returned.

Guan Yu arched his hand and said: "Your Majesty, I will look in the northwest direction, where there is a flat river, if the tunnel is excavated, it is easy to be detected by the enemy, and it is not suitable to camp there." ”

Lin Xiao arched his hand and said: "Your Majesty, I will look due west, and it is also a flat river, which is not suitable for camping. ”

Wei Yan arched his hand and said with a smile: "Your Majesty, I am looking due east, four miles away from Gaonu, there is a high slope, and there is a river not far away, our army can camp at the bottom of the slope, dig a tunnel behind the slope, the high slope can block the view, the enemy will not notice." ”

"Okay, in that case, lead the troops to the east of Gaonu and set up camp." Although Wei Yan's personality is not very good, he still has the ability to march and fight, since Wei Yan said that he can camp in the east direction, he can't be wrong over there.

Liu Chan did not hesitate, and immediately led his troops to the east.

However, after a long time, Liu Chan led his troops to the east of Gaonu, which was four miles away from Gaonu, and there was a high slope rising from the ground, and its height was above Gaonu City.

If the terrain is lower than that of Gaonu City, then digging tunnels and excavating soil can be seen in the direction of Gaonu.

However, if the terrain is higher than Gaonu, digging behind the slope and transporting soil, the high slope will block Gaonu's view, so that the enemies of Gaonu City will not notice.

Liu Chan stood at the top of the slope, saw that the terrain of the high slope was higher than the high slave, and said with satisfaction: "There is a high slope here, the terrain is higher than the high slave, and there is a water source not far away, which is indeed suitable for camping. ”

"No!" The generals surrendered their orders, and then the soldiers and horses fell into a hurry.

Knowing that Liu Chan drove the expedition in person, Manro, the defender of Gaonu City, was a mediocre person, where did he dare to go out of the city to attack the Han army, and before sunset, the Han army established the camp safely.

In the big tent of the Chinese army.

Liu Chan sat on the main seat, and the generals lined up on both sides.

Guan Yu arched his hand and said: "Your Majesty, although our army is encamped here, digging a tunnel behind the slope, there is a high slope to block the view, and the Gao Nu defenders will not see our army's movements. However, it is difficult to guarantee that the defenders of Gaonu City sent scouts to inquire about the news, so it is necessary to be prepared. ”

Liu Chan nodded and said, "What the second uncle said is very true, I don't know what the second uncle can do?" ”

Guan Yu said with a smile: "The high slave guard general Manluo is incompetent, and now His Majesty is driving the expedition in person, and he is terrified. His Majesty can send the general to challenge the four gates every day, and at night he will order the general to lead the patrol to prevent them from sending scouts at night. In this way, the movements of our troops will not be detected by the enemy. ”

"Hmm!" Liu Chan bowed slightly, thought for a while and said, "Ma Chao, Lin Xiao, Lin Yuan, Wei Yan." ”

"The last general!" Four will give up.

Liu Chan ordered: "The four of you will each lead two hundred cavalry every day, and they will be divided into Gaonu Four Gate City to challenge, and show off your strength every day!" ”

"No!" The four generals will give up their orders.

These four people are the top generals of the Han Dynasty, and they are very famous, and if they go to challenge, the defenders of Gaonu's city will definitely not dare to fight.

Liu Chan ordered again: "Wang Ping, Ling Tong, Ma Dai, E Huan, the four of you, each lead a thousand people every night, patrol around my camp and high slope to prevent the enemy from sending scouts to inquire about the news. ”

"No!" The four generals will give up their orders.

Liu Chan ordered again: "Let the people weave baskets overnight, and start digging tunnels early tomorrow morning, so that the hundred people will work day and night, and strive to open up the tunnels to Gaonu in the shortest possible time." ”

"No!"

In the early morning of the next day, Ma Chao, Lin Xiao, Lin Xiao, and Wei Yan each led 200 cavalry to go to the four gates of Gaonu.

And the Han military camp has officially begun to dig tunnels.

Behind the high slope, four people who are good at digging tunnels are frantically wielding hoes and shovels. Two people dug with hoes, and one person in the back rested with shovels to stabilize the tunnel. Another citizen was in charge of loading the excavated earth into baskets.

The tunnel doesn't need to be very wide, it can accommodate one or two people to pass normally, so it can only accommodate about four or five people to work.

But digging tunnels is a manual job, and in order to pursue speed, you have to constantly swing your hoe, which is very heavy on your arms. Therefore, after digging a hundred and ten times, and digging a meter long, they had to retire and rest and change to other people's work.

"I'm coming!" One of the people dug a meter, and another person changed it, but in half an hour, they dug a tunnel of about ten meters. There are soldiers in the back who are responsible for passing the dug dirt out.

Liu Chan said to a common person: "General Ma Chao just sent a message that this place is 1,300 steps away from Gaonu City, you calculate, at this speed, how long will it take to dig under Gaonu City?" ”

The people thought for a while and said: "Now you can dig six steps in half an hour (the ancient one step is equivalent to thinking in two steps, about one meter and a half), and you can dig more than 150 steps a day, so that in less than nine days, you can dig to the foot of Gaonu City." ”

Liu Chan nodded and said, "Okay, if you can succeed within eight days, I will give each of you a hundred tilts of good land and one hundred gold." ”

The people were overjoyed when they heard this, and said to the people around them: "Everyone, listen, Your Majesty said that as long as the tunnel to Gaonu is dug within eight days, Your Majesty will give us a hundred tilts of fertile land and one hundred gold, and everyone can sell some strength!" ”

"Long live Your Majesty!"

"Long live Your Majesty!"

The people were immediately excited when they heard this, and the two people who were digging the tunnel were even more high-spirited, and the hoe in their hands was waved like Zhao Yun's dancing gun, and the loess brought up by the hoe fell on their bodies, and they didn't care about it on their heads.

On the other side, to the east of Gaonu City.

Ma Chao led his troops to arrive at the city with two hundred cavalry, and Ma Chao urged the horse out and called for battle under the city.

When Manro heard the news, he rushed over, only to hear Ma Chao under the city shouting and scolding: "Manropuff, do you know my Xiliang Ma Chao?" Do you dare to come out and fight me? ”

Seeing that it was Ma Chao, Manro said to the generals around him: "This person is extremely fierce, don't pay attention to him." ”

The first general was displeased when he heard this: "General, he only has two hundred people, let's lead our troops out of the city to fight against him, why avoid the battle!" ”

Manro said in a deep voice, "What do you know? Ma Chao's courage is powerful and powerful, which of you is his opponent? Although he only has 200 people, since he dares to come, he must be prepared, and if we go to battle, we will definitely be ambushed.

Shan Yu has already explained, if the Shu army comes to attack, you must hold out, have you forgotten Shan Yu's orders? ”

"I can't wait!"

At this moment, three more soldiers ran to the left and right.

"General Qiyu, in the direction of the West Gate, Shu General Lin Xiao led two hundred cavalry to challenge."

"General Qiyu, in the direction of the North Gate, Shu General Lin Yuan led two hundred cavalry to challenge."

"General Qiyu, in the direction of the south gate, Wei Yan, the general of Shu State, led two hundred soldiers and horses to challenge."

Manro took a deep breath and ordered: "These people are all famous generals of the Shu Kingdom, all of them are ten thousand enemies, and now they come to challenge together, there must be a conspiracy, let's not pay attention to it, let the brothers be vigilant, and there must be no mistakes." ”

Seven days passed in the blink of an eye.

In the past seven days, Lin Xiao, Ma Chao and others will go to Gaonu every day to challenge, and Manro will not dare to appear. At night, Wang Ping, Ma Dai, Ling Tong and other generals led troops to patrol around the camp, and the scouts sent by Manluo could not approach the Han army camp to find out the movements of the Han army.

Early morning on the seventh day.

Liu Chan came to the dirt slope and then inspected.

Now the soil slope has been excavated nearly 2,000 meters, in the tunnel, also shot a long dragon, more than 1,000 soldiers in the tunnel to carry the soil, behind the soil slope, the soil is piled up like a mountain.

"How's it going?" Liu Chan asked in exchange for a common person.

The people replied: "Your Majesty, early this morning, we have measured the length, and the tunnel has been dug more than 1,200 steps, and this afternoon, we can dig under the city of Gaonu." ”

"Good!" Liu Chan was overjoyed when he heard this, and said: "When you dig under the city of Gaonu, stop, expand the scope there, don't dig up for the time being, and listen to my orders at night!" ”

"The grass people obey!"

It was soon evening, and the excavation of the tunnels was temporarily halted.

Liu Chan personally entered the tunnel to inspect the situation.

The tunnel is more than 1,400 steps long, and the innermost part is the center of Gaonu City, where the tunnel range is very wide, which can accommodate dozens of soldiers, and you can also put ladders in.

Liu Chan said to Guan Yu beside him: "Second uncle, if it gets dark today, pass the order down, so that Wang Ping, Ma Dai, Ling Tong, and E Huan don't have to patrol tonight, and when the time comes, let them each lead 1,500 soldiers and horses to the four gates of Gaonu, pretend to attack the city, and attract the attention of the enemy."

The rest of the generals, soldiers and horses, after dinner, gathered in the tunnel, and stayed until a moment later, but when they heard the sound of killing in the direction of the high slave, they opened the tunnel, led the troops into the city, opened the city gate, and took the high slave in one fell swoop! ”

"The last will obey!" Guan Yu's face was full of excitement when he heard this, and he gave up the order.

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