"Yes, Yuangai Suwen is very clever in this way of playing, they use dirt bags to pile up behind the shield cart, this is an earthen wall, our trebuching machine and long-range strong crossbow cannot penetrate it, they have this earthen wall cover, they can be stationed behind the wall, there is no need to retreat at night, and when they attack again the next day, they can continue to attack behind the earthen wall they made." Yang Kongcian instantly understood the purpose of the Goguryeo people.

Luo Chunlai also thought about it and said: "My lord, I think that the Goguryeo people want to build an earthen wall, relying on the cover of the earthen wall to dig trenches or tunnels day and night, and attack our defense line nearby, or after the earthen wall is built, they may send troops to attack or harass at night." ”

"Before, your garrisons on the two islands should have prepared a response plan to deal with the enemy's possible digging and trenching, right?"

Luo Chunlai immediately nodded and said: "At that time, the adults repeatedly emphasized that they should let the subordinate generals and Liu Yidong repeatedly deduce the possible situation, and the enemy may learn from us to dig tunnels and trenches, and I did think of this, but after our experiment, we found that it was quite difficult, we had nearly a zhang of trenches to block, and their tunnels had to go deeper than a zhang, and the underground on the island was damp, and there was a lot of water seepage, and the tunnels were very easy to collapse, and the movement of soldiers was also very inconvenient. Even so, we still bury a safety cylinder every dozens of steps to ensure worry-free. In addition, it is more effective to approach the ground with a trench, but our earthen walls are in the form of rows of acute angles, as long as they advance, there will always be a wall that can hit the ditch, and then strengthen the attack in the corresponding direction, so their trenches can only learn a superficial. ”

Wang Junlin nodded with satisfaction, Luo Chunlai and the people on Dami Island can think of this, and Liu Yidong will never miss this point in the deduction of the people on Bailing Island these days.

It's just that to be honest, he didn't expect Yuangai Suwen to react so quickly, but the forces in the war are always good at learning, not to mention the situation in front of Goguryeo, as long as a person who understands, it is very likely that they will never go back like the more than 10,000 sailors who came last time, and it is normal to have such a reaction under this pressure.

At this time, the Goguryeo shield car array stopped all the way, and the auxiliary soldiers behind came and went like ants, throwing all the pre-loaded earthen bags onto the earthen wall, as well as the fragments of the shield car a few days ago, all of which became the material of this shield car wall.

The distance between Yuan Gai and Su Wenxuan was between seventy and eighty steps away from the earthen wall on Wang Junlin's side, which was just enough for their bows and arrows to be thrown, which showed that they had indeed used their brains and had been researched and demonstrated.

The Goguryeo soldiers desperately lost a large number of auxiliaries, and quickly built an incomplete earthen wall in the north, which could at least effectively cover their troops, so that the Goguryeo soldiers had a rest line, and at the same time, they could counterattack and shoot while ensuring their own safety as much as possible.

More than 2,000 auxiliaries dug trenches behind the shield carts, and the excavated earth was piled up behind the shield carts, and the earthen walls were reinforced step by step. The stone throwers and long-range crossbows on Wang Junlin's side gradually stopped firing, and both sides were unable to effectively hit each other for the time being, and after a fierce battle, they entered a state of confrontation.

Luo Shixin, who has been standing behind Huang Zhixuan for the past few days and rarely speaks, suddenly said: "Uncle Shi, the Goguryeo people are blocked by an earthen wall, and our attack cannot be sustained in a short period of time. Especially on the western side of the hill, their shield car formation was too straight, and the flank coverage was insufficient. ”

Wang Junlin agreed: "Yes, you can see this, very good. ”

As soon as Luo Shixin spoke, Li Xuanba was not to be outdone: "Uncle Shi, the earthen walls of the Goguryeo people are still very messy, and the two wings especially lack cover, so we must take men and horses out to resist." ”

Luo Shixin and Li Xuanba said on this sea, on Bailing Island, Liu Yidong had already issued a similar order, the drums and trumpets on both wings sounded in unison, and the five hundred soldiers of the reserve team made a temporary attack, especially the sandwich road under the western hillside, and the reserve team entered the sandwich between the western hillside and the earthen wall from the earthen wall passage by the sea, which was a reserved sortie position, and under the attack trajectory of the two, if the Goguryeo soldiers could not seize the western hillside, they would not be able to attack here, as a counterattack assembly place for the defenders, which was the best.

There was also such an area under the eastern slope, smaller than the western slope, and five hundred reserve soldiers also made a sortie.

Because of the strong threat on the western slope of the king's side, the Goguryeo shield cart could not be spread on the front, and the two wings became their weakness, they seemed to want to make an arc, but the condescending blow on the west side was very fierce, causing serious losses to their shield cart, at this time it was only enough to cover the front, especially the protection of the right wing was very empty, when it was found that the reserve of the king's side was ready to attack them, the Goguryeo soldiers on the west side gathered more than 2,000 horses behind the earthen wall.

On a wooden platform on the western slope of the mountain, flags are continuously displayed, and the excellent perspective is used to transmit signals to their own people under the mountain.

Wang Junlin was also reading, but he couldn't understand it, using the flag language to command was his proposal and instruction, and the specific flag language regulations were Liu Yidong led the people below to study and unify by themselves, and then there was the current standard flag language, although it was still in the experimental stage, but it has shown great advantages in short orders, at least greatly improving the command efficiency.

All the areas facing the defense line were numbered, the lookout posts had to train with a marked map every day, accurately judging the enemy's position without a marker, and the stone thrower and long-range crossbow had also been calibrated by test firing, and the preparations of Wang Junlin's side were far more complete than Yuan Gai Suwen had imagined, and they were already beyond his knowledge.

With Liu Yidong's order, a part of the stone throwing machine and the long-range strong crossbow quietly prepared for shooting, and there was a short silence on the battle line, and the Goguryeo soldiers thought that they had the cover of the earthen wall, and they were not afraid of the blow of the stone throwing machine and the long-range strong crossbow on Wang Junlin's side.

The commanders of each group of stone throwers and long-range strong crossbows raised the pennants, and the soldiers with red background and yellow sides next to Liu Yidong commanded the flags to grind the flags for a week and wave them left and right. The silent Wang Junlin's front suddenly broke out, and all the stone throwers and long-range crossbows that could be hit fired at a lot at the same time, and they fired at the fastest speed, and hundreds of stone shells swept across the outer array of the two thousand Goguryeo arrays, and the mobile force of the two thousand Goguryeo people was suddenly in chaos, and they had to take refuge next to the earthen wall.