The Battle of the Han River Crossing River completely dismantled the cavalry units of the Sanhan and Fuyu coalition forces of at least 20,000 people, and completely destroyed the Gongsun family's last courage to go out of the city to fight.

From then on, no matter how arrogant and domineering the Han army was in the wild and the lonely army penetrated deep into the air, the three Korean armies regarded it as a trick to lure the enemy!

No matter how weak the Han army looks, they must be deceitful! There must be a terrifying killer move in the "blind spot of vision" behind them!

In the next few days, Zhao Yun had no chance to gain any chance to make great contributions. After all, his thousands of cavalry could not really launch an attack on the city.

He could only grab grass and beat rabbits, clean up and remove some beacon fortresses left by Gongsun Kang on the south bank of the Han River, and then waited until Taishici's main force arrived outside Tunnan County to meet him.

However, in addition to killing Gongsun Kang's vital force, Zhao Yun's decisive battle also had another important significance, that is, he greatly disrupted Gongsun Kang's plan to "strengthen the walls and clear the fields".

Gongsun Kang only achieved "stand firmness" but did not have time to completely "clear the field".

According to Gongsun Kang's original plan, the people in the coastal fertile plains west of Tunnan County should gradually migrate to the southeast mountainous areas, and all the food harvested in autumn should be gathered and transported to the rear.

If the enemy came too fast, Gongsun Kang even thought of setting a small number of crops that had grown slowly and could not be harvested without thorough maturity and could not be harvested directly, so as not to allow the Han army to raise grain on the spot.

However, Gongsun Kang's plan was originally based on the fact that "the Han army could cross the Han River on a large scale after Taishi Ci arrived." After all, he wanted to save as much people and food as possible, but after Zhao Yun did this, the work of clearing the field was full of loopholes.

At least tens of thousands of households, a large number of unharvested food fell directly into Zhao Yun's occupied area.

However, even so, Gongsun Kang discussed with his younger brother, son and staff and felt that the strategy of shrinking defense still had to be adhered to.

On the one hand, the Han army has already broken up and beaten up like this. The Han army will not give him good food. This is not "rescue voluntarily before the war begins."

Moreover, his brother-in-law Fuyu Wang Wei Qiutai was killed by Zhao Yun. If he surrendered at this time, he would not be able to convince the public. No one would respect him anymore, and he would only be betrayal of his relatives.

On the other hand, since Gongsun Kang must continue to fight and field battles are impossible, then retreating and sticking to it is the only choice. Even if this choice has become worse and worse, he can only choose one of the relatively less bad tricks among a bunch of bad tricks.

After taking stock of the current situation, Gongsun Kang knew very well that he had hope at two points: first, to defend the city, and second, to annihilate the enemy fleet in naval battles.

Apart from these two points, any other attempt is absolutely hopeless.

Then someone might ask: Didn’t Zhao Yun destroy Gongsun Kang’s “cleaning field”? Then the Han army can now solve some of the food and grass on the spot. In this case, even if the enemy’s main force is placed ashore and the navy goes around and annihilates the fleet left by Taishi Ci on the sea, the Han army will not lose food.

When the attacker keeps food, it is impossible to win by just sticking to delay time. You have no foreign aid and no turning point. Staying at the city is just to slow down death. What's the point?

This interpretation is not too wrong, but after repeated thinking, Gongsun Kang still digs out a little meaning from this persistence and delay: as long as Taishici's fleet is subsequently killed, even if he is dragged on Sanhan, he can still cross the sea to escape to the evil horse platform that he had just conquered by him!

After all, as long as Taishici's ship is killed, the Han army will not be able to cross the sea quickly. When he is destroyed, he will be destroyed in the capital of Sanhan. Before the city is broken, he pretends to set fire to burn the palace, claiming to the outside world that he is righteous and not humiliated. The whole family will commit suicide by fearing the crime. At that time, he will sneak across the sea and change his face and continue to be his barbarian king.

Therefore, we must persist in delaying step by step and still implement it! Although the ultimate goal has to be reduced by another level of requirement. From saving the three Koreans to ensuring escape, the part of the territory on the mainland can only be abandoned in extreme cases.

...

Gongsun Kang's cowardice and understanding of the current affairs also led to the progress of Zhao Yun and Taishi Ci in the latter stage of the process that looked very smooth.

Taishici was quite depressed. After his fleet arrived at the Han River Estuary, he divided the small boats and continued to go upstream to meet Zhao Yun. Due to the waterway problems, the large sea ship stayed at the estuary near Incheon in later generations.

Five or six days passed, and Taishici had almost no battle to fight. The field battle was over by Zhao Yun in that wave, and the rest were fortifications.

Taishici couldn't cross the sea and directly brought heavy trenchers, at most they brought some key and complex parts and metal parts. The wooden main body of the trenchers and even other siege equipment were obtained, and the wood was harvested on the spot.

Therefore, within the first ten days and eight days, Taishici could not directly attack Gongsun Kang's capital, and could only eliminate the peripheral county towns and strongholds.

Taishi Ci was full of desire for war, and he was a little aggressive when attacking the tough situation. He saw that the cities of the three Koreans were all wood, and should be similar to those of the camps in the Central Plains, so he looked down upon them very much.

After a few light catapults were found, a few more top covers were added, and a rushing car that hit the wood, he directly asked to attack the city and remove the beacon tower fortress. He didn't even build a cloud ladder, so he built some simple flying ladders.

In Taishi Ci's mind, he felt that these stairs didn't need to be made of wooden walls and could they be climbed up? Wouldn't it be better to just knock them down?

As a result, Taishi Ci really paid a little price for his underestimation.

Many fortresses guarded by Gongsun’s troops are really strong and difficult to attack. The light throwing stones and hitting wood and walls are almost ineffective. Moreover, the Sanhans are good at bows and arrows and accurate shooting skills, and they also fully demonstrate their advantages when guarding the city walls.

The tentative attacks on several counties were at the cost of more than a hundred casualties in the Han army and had to temporarily withdraw.

The defenders were only shot by the Han army with a divine arm crossbow covering the top of the wall, and some were shot. Although the casualties of the defenders were not low, the Han army was a long-term warfare united the world, and it was obviously not cost-effective to exchange lives with the enemies of these barbarian lands.

...

Taishici had to take a break and collect information to think about countermeasures.

"Why are the wooden walls of these three Korean barbarians so difficult to collapse? They don't look similar to those of the rammed earth-building spikes in the Central Plains? Isn't it enough to fight fortresses?"

After returning to the camp, Taishici immediately recruited several subordinates in charge of specific siege battles and interrogated them very much.

Several generals also stated some difficulties and had different statements. In short, they emphasized that the defensive fortifications of the Three Koreans were indeed unique, which made Taishi Ci a little depressed.

He was holding a war meeting. On the other hand, Zhao Yun heard that his attack was frustrated, so he sent someone to coordinate and exchange experiences. The person who came was Tian Yu, who knew the situation better. When he encountered this scene, he explained it to the soldiers of Taishi Ci's side.

"General Taishi is a little worried. Although these enemies are barbarians, the method of building cities is really unique. He has lived in Liaodong for a long time and has a lot of knowledge about the Three Hans and Fuyu, so he knows it."

Taishici was patient and humbly asked for advice: "Oh? I hope to hear it carefully."

Tian Yu used their practical experience to explain the example: "General, before you arrived, our army, under the leadership of General Cavalry, also broke through more than ten beacon fortresses on the south bank of the Han River. Those easy-to-beat generals were taken down by General Cavalry, so what was left for General Taishi would be a little harder to chew.

I had entered several beacon towers that were captured and looked at, which confirmed the pre-war conjecture that these barbarians used the method of building fortresses by Fuyu using giant trees as muscles and bones to make rammed earth.

Therefore, it is extremely thick and strong, and cannot be regarded as a rammed earth-buried wooden pile-like camp in the Central Plains. Moreover, this thing is cheap and fast to build, so it can build a wide fortress, which is more frugal than the Central Plains."

After hearing this brief overview, Taishici still seemed to understand it, but he had to believe that the enemy was indeed unique in defense and defensiveness.

Tian Yu also felt that this explanation was not effective, so he invited Taishi Ci to take a beacon tower fortress that Zhao Yun had won before to take a look at it.

Taishici and his party rode out of the camp and came to the shore of the Han River. Tian Yu led them to a semi-dismantled and studied fortress. Only then did Taishici see clearly.

It turned out that the people of Fuyu built wooden fortresses, which were thick and solid logs. Some of the wood arranged along the length of the wall were not cut, and the other part was arranged along the thickness of the wall, and they were cut into eight-foot-long jokes.

The two first form a cross rectangular grid with the shape of "涓" Well, it is a bit too far to say that the shape of "涓" is not that long, to be precise, it should be between the characters "涓" and "涓".

The first layer is placed with two horizontal lines, one layer is placed with two vertical lines, and the third layer is placed with two horizontal lines... Then, when it is high enough, you will frantically fill the frame with soil until it is filled.

In order to ensure stability, the position where the wood and wood overlap is slightly flattened so that the two flat parts are put together.

Of course, such construction will still leave a relatively large gap between each layer of vertical and horizontal wood. When the rammed earth is filled and compacted, a lot of soil will leak out from the wooden frame, but the construction worker doesn't care and continues to stuff it down until it is completely compacted.

The fortress built in this way will still have a certain slope. Like a gravity dam, the soil leaked from the bottom is wider and narrower on the top, which is easier to climb up along the wall, but it is absolutely solid.

After all, the wall is eight feet thick or even ten feet thick, and the wooden frame in the middle is equivalent to the effect of a steel cage, and it is not easy to smash the catapult cart.

Fortunately, Taishi Ci is not a time traveler, so he just thinks this thing is exquisite and doesn't see any other clues.

If Li Su came to inspect it personally today and saw this primitive fortress of the Fuyu people, he would definitely be surprised how this guy looked so similar to the Kremlin he built when the Ross conquered Siberia a thousand years later?

Little did they know that in history, the Ross people spread the past from the fishing and hunting peoples in the Northeast and developed the fortress needed to conquer the cold temperate primeval forests.

The word "Kremlin" initially refers to the wooden fortress built by the Ross in the primeval forests of the cold temperate areas, and also serves as a fortress for the settlement of loggers in winter.

It appeared around the 13th century, when the Mongols left the westward expedition and then the Ross took advantage of the Mongols to expel the original fishing and hunting peoples in the local area and came back to fill the vacuum. During this period, they built Kremlins on a large scale and gradually eroded Siberia.

Of course, after nearly a thousand years of development in later generations, the Ross Kremlin is definitely much more perfect than the wooden fortress built by the Fuyu people in the primeval forest of Changbai Mountain area.

At least the Ross people knew to cut the logs on the wall into semi-cylindrical grooves to ensure that the upper and lower layers of logs can be stacked in a tight manner, and there will be no soil leaking between the wood and the wood, and then fill the wooden frame with soil to compact it.

This fortress could withstand the early primitive artillery bombardment of 15XX years. Later, Ross needed to build a stone-covered modern fortress in Kazan.

For specific readers who lack imagination, you can watch the actual video of the technical explanation of the Ross battle in "Age of Empires 4". There is a detailed introduction to how Kremlin was built.

Of course, the construction of Kremlin-like fortresses is not without its disadvantages. If it is really so strong, it can easily prevent catapults and even primitive artillery. It will not be carried forward in the Changbai Mountains of Northeast China and the Greater Xing'an Mountains, but it will not be able to be introduced into the Central Plains.

The biggest disadvantage of Kremlin-like fortresses is that they are afraid of fire attacks, especially when the temperature is high and dry in summer. After all, the bread outside is full of wood.

Secondly, Kremlin-like fortresses consume a huge amount of wood. In the vast forests of Northeast and Siberia, it is OK to build a fortress in a small area in the loggers. If you want to include tens of thousands of people in the city like the Central Plains, you will definitely cut down all the local trees.

Moreover, there are not so many trees in the south that can grow to the level of towering trees.

Finally, these untreated, dry logs are built directly, so they can only ensure that they do not rot all year round in extremely cold and low temperature environments. In Siberia, the Kremlin Fortress can last for about 500 years. When it reaches the warm, hot and humid Central Plains, it may rot in decades.

These factors have led to the fact that this city structure can only be used in Siberia and Changbai Mountain in the Greater Khingan Mountains and cannot be promoted in the Central Plains.

In history, the Xiongnu, Xianbei, and Mongolian grassland nomadic peoples actually did not master these technologies and could not be used. Because they were grassland people, not the primeval forest people further north.

The dividing line between Mongolia and Ross in later generations was basically the development limits of grassland civilization and primeval forest civilization. The grassland nations are not adapting and stronger the more they go north.

They can only show off their might in the grasslands in the desert and the desert, and in the middle of the "desert". When they really arrive at Lake Baikal, which is further north than the grasslands in the desert, the nomads on the grasslands will be restricted and they have to be replaced by the stage of fishing, hunting, woodcutting and picking nations.

Unfortunately, most of the emperors of the ancient Central Plains dynasty did not know this truth. From Liu Che to Zhu Di, there was only a big and empty concept in their minds, thinking that "the nomadic grassland must be stronger and stronger as far north as the end of the northernmost world, all the places where these nomadic barbarians are like fish in water."

Little did I know that when I really arrived in Siberia, I actually changed to another set of survival logic. Where did the grassland come from for you to get along with it?
Chapter completed!