"Lord, lord, no, the Southern Dynasty has really invested in building a city on Juehua Island this time! I have built a big city, just around the waist of Juehua Island, with a circumference of two thousand steps, and at least tens of thousands of troops can be stationed......"

In the middle of the night, in the Wenhua Hall of the Forbidden City in Beijing, Fan Wencheng, a scholar of the Inner Secretary Academy, who had been riding a horse for two days in a row, was reporting to Dolgon in a hoarse voice.

"Two thousand steps? How can it be? Dolgon was stunned, "Fan Wencheng, are you hearsay?" How can it be two thousand steps? What exactly do they want to do? Why build a city that big? ”

The ancients took a step to refer to the distance of each step on each leg, which was almost one and a half meters. Two thousand steps is three thousand meters, and a castle with a circumference of three thousand meters is not small, and the area of the city is more than half a square kilometer. This is not a city, but a military fortress, with no residential areas or commercial areas inside, purely used to garrison the army...... Half a square kilometer is 500,000 square meters!

How many soldiers can be stationed in a castle with a construction area of 500,000 square meters? How much grain do you have? It has to be tens of thousands, right? Dol pondered: Tens of thousands of troops are stationed on Juehua Island, it must be to attack Liaodong! Isn't this little prince of the Southern Barbarians fighting the idea of entering the mountain customs from the northeast?

"You can't be wrong!" Fan Wencheng said, "The minions sent henchmen to pretend to be merchants and went to the island, and found that the piece of Juehua Island waist was enclosed in the city wall...... The walls were built from the south shore of the island to the north shore! ”

"Is it really that big?" Dolgon's brow furrowed, "How many people do you have to start working?" ”

"Oh, the walls are not high, and they are not made of masonry, nor are they made of rammed earth, but they are piled up with sacks."

This is the most common method of building field fortifications in later armies, and it is the most effective method that has been tested by two world wars and is still used into the 21st century. Of course, the effect of anti-artillery and bulletproof is very good - people can even carry the artillery of later generations, not to mention the Hongyi cannon of this era?

In addition to the ability to stand the test of defense, there are two advantages to building a fort with sandbags, one is that it is easy to construct, and the amount of work required to build sandbags is much lower than that of rammed earth, let alone masonry. Therefore, Yu Daren and Zhang Huangyan only need more than 1,000 officers and soldiers and two or three thousand people, and in a short period of time, they can pile up a rough appearance.

Second, it is easy to maintain. The trapezoidal wall made of sandbags was structurally very stable, and it was almost impossible to use the Hongyi cannon to create a large-scale collapse. Even if there is some collapse and damage, it can be filled with sandbags, and it will not take much effort at all.

"Fill the soil with sacks...... How many sacks do you have to use? It was the first time Dorgon had heard of someone building a wall like this, "And is it reliable?" ”

"I don't know," Fan Wencheng shook his head, "It's not as good as masonry and rammed earth, right?" ”

It's really better to make up for the brain, how can sandbags be loose and loose compared to hard masonry and rammed earth?

Fan Wencheng frowned, "Lord Wang, the city built by the Southern Army on Juehua Island is not for defense, but for the purpose of attacking!" If they build a small fort out of masonry, the minions will not worry. But now they have built a city with a circumference of 3,000 paces with sacks of earth, and they are afraid, only afraid...... I'm afraid that I will attack Liao in a big way! ”

Dolgon nodded lightly and said in a low voice: "It makes sense, a low city of 3,000 paces with sacks is too big to defend, and it can be broken without the need for Hongyi cannons...... What is the use of the troops and the food in addition to the garrison? ”

As he spoke, his brow furrowed as he spoke, he seemed to weigh it up and down.

"Lord Wang," Fan Wencheng looked at Dolgon, "The slave thinks that Liaodong and Liaoxi are the land of Longxing in my Qing Dynasty, if something goes wrong, this person's heart is ......"

"What's wrong with people's hearts?" Dolgon turned his head and glared at Fan Wencheng, "Liaodong and Liaoxi have thousands of miles of sea borders, and the southerners have countless big sea boats, where can they go?" Do we still have to fortify everywhere? Can you prevent it? ”

Fan Wencheng was stunned by Dolgon, and he was speechless.

Dolgon stood up, paced in the Wenhua Palace, walked about a dozen steps, suddenly stopped, and said to Fan Wencheng: "Fan Wencheng, this king will give you another order...... All the people within 30 miles of the coastal sea of western Liaoning were removed, all villages were burned, and the green seedlings in the fields were driven to cattle and sheep to eat! ”

"Lord Wang, ...... are you" Fan Wencheng looked at Dolgon in surprise.

Dolgon said coldly: "The western and eastern coasts of Liaoxi are our seven inches...... It is impossible to divide the troops. Our Manchurian heavenly soldiers must be concentrated in one place to defeat Nankou. If the troops are divided, they will be broken individually, so clearing the field on the coastal walls of western and eastern Liaodong is the only move. Fortunately, there are not many of us in Liaodong and Liaoxi, let alone thirty miles, even if it is a hundred miles of strong walls and clear fields, it doesn't hurt!

With these thirty to one hundred miles of wilderness, as long as we deploy thousands of Eight Banner Strongholds in Liaodong and Liaoxi, we will be foolproof. ”

Dolgon's solution was ugly, but it worked! A buffer zone could be created in the clear fields along the coast, and a small force of landing troops would not be able to cross the 100 miles if they came ashore - there were no inhabitants in the 100 miles of wilderness, but scout cavalry could be arranged. If Zhu Cihong's new army fights in formation, it may be able to confront the Eight Banners strong army, but if you want to fight and wait for the night, it is not an opponent at all!

Moreover, Liaodong and Liaoxi are still the home of the Eight Banners. After the small group of landing troops came ashore, they would be covered by the scout cavalry of the Eight Banners, and their eyes would be blackened, how could they dare to advance a hundred miles? At most, it's just walking around the shore.

The movement of the large Ming army after landing and landing was relatively slow, and it would take at least several days to complete the landing and break through the buffer zone. At that time, the elite soldiers arranged by Dolgon in Liaodong and Liaoxi were already ready for battle!

Relying on a few thousand true Manchuria may not be enough to repel tens of thousands or more of the Ming army, but it can also stall for time and wait for the army to arrive from Beijing. It was also possible to strike at the logistical lines of the Ming army, forcing them to retreat to the shore.

"The prince is wise!" Fan Wencheng complimented Dolgon, this is to admire the master in his heart - he has a headache when he thinks about the situation in Liaodong and Liaoxi, but he didn't expect it to be gently resolved by Dolgon.

At this moment, the sound of hurried footsteps came from outside the Wenhua Palace, and before the man came in, he was already shouting: "Brother Fourteen, what's wrong?" Call me in the middle of the night......"

The person who came turned out to be Dordor, who had been called back to Beijing by Dolgon to teach him face-to-face. He has been on the front line for so long, and a group of wives and concubines in the family have been screaming for a long time, so he has been very tired for the past two days, and he has been busy until midnight before sleeping, but as soon as he closes his eyes, someone comes to the palace.

Fan Wencheng saw that Duoduo was coming, so he hurriedly knelt down and saluted, "Slave Fan Wencheng greets his master." ”

"Oh, Kento, why are you here?" Duoduo waved his hand and asked Fan Wencheng to get up, while he himself sat down on the embroidered pier brought by the chamberlain.

Dolgon said: "The southern soldiers have captured Juehua Island from the sea, and also built a large city of 2,000 steps, it seems that they will station heavy troops on Juehua Island, and then they should attack in a big way!" ”

"What? Large-scale invasion of western Liaoning...... Fourteenth brother, do you want me to go to Shengjing to be the manager? ”

"No," Dolgon shook his head, "we can't lead the way to the South...... They committed Liaoxi and Liaodong, let's follow, then we will be fooled. We have to take the initiative! ”

"Yes!" Duoduo nodded, "Where?" ”

"Qufu!"

"Qufu?" Duoduo blurted out, "Are you really going to dig up the grave of the saint?" ”

Dolgon glared at his brother, "What nonsense are you talking about? That's Zhu Cihong's kid slandering us! Why do you follow along? ”

"Don't dig graves...... So what are you going to Qufu for? ”

"Surrounded!" Dolgon smiled and said, "Surround Qufu and then attract southern soldiers from all over Shandong to rescue it, just like when we fought Jinzhou...... The Southern Dynasty has deployed heavy troops in Shandong, many of which are still guarding dangerous points, we can't fight one city at a time! ”