Chapter 421

The unconventional tactics of digging tunnels are not applicable at all times.

Even during the war in the main city, it depends on whether the local geographical environment is suitable for this method.

Otherwise, if you dig a tunnel directly from the inner city like Tianyuan City, if the soil is a little soft and only supported by wooden piles, I'm afraid it's difficult to support the city wall.

Moreover, on the front battlefield facing the city gate, either there is a moat as a barrier, or there are trees on both sides of the official road. It is difficult to make the enemy invisible on the surface after digging out the tunnel.

Moreover, because of the city wall, the tunnel must be dug deeper and supported by a wide enough stratum, so that the city wall will not collapse. If it is a little careless, it is very likely that the tunnel will not reach the enemy, but the city wall will collapse directly. This is a foolish thing that makes relatives hurt the enemy.

Therefore, under unusual circumstances, tunnel traps are generally not the conventional tactics considered by the defensive manager.

Tianyuan city is not.

Tianyuan city was not built on the main traffic road. In order to allow the passage of troops, the city was moved to the side, which made the space outside the city extremely open and open, with no trees to block it.

And Ouyang is also very smart. He doesn't hesitate to spend a lot of energy to dig the tunnel, which is just at both ends of the city wall. This kind of place will not easily become the focus of the enemy's attack.

Because he knew very well that with Zheng Yuanyun's sophistication, he would not be wary of some of the most basic common sense. For example, before the army launched an assault on the city gate, there would be engineers to detect the terrain first to ensure that there was no ambush on the way forward.

In addition, even if a tunnel is dug here at the main gate, it can only block a small part of the enemy. Don't forget that the defenders can't just rely on the tunnel to prevent the enemy from attacking the city. They will also make intensive large-scale lethal attacks such as stone throwing.

The stones hit by the catapult are very heavy!

When the weight accumulates to a certain extent, and even before the enemy forces step into the trap, they have to expose the hard dug tunnel. In this way, how can the other party be deceived?

Compared with the huge investment in engineering quantity, if it can only affect a small part of the enemy, or even a small team that has no impact on the enemy's strength, it is very unnecessary.

Therefore, what Ouyang's vigorous action makes people dig is the two ends of the city wall that generally will not become the focus of attack.

Digging a tunnel here, first, the other party is unlikely to think of it. Second, his tunnel is about 20 meters deep underground. Even if an engineer explores it in advance, it is impossible to easily find out that the soles of his feet are actually empty.

Zheng Yuanyun sent 400000 troops on both sides, divided into two sides, with a quantity of 200000 on one side.

This number, Tianyuan city did not pour out the artillery fire of the catapult, which means that it depends on the weight of the soldiers themselves to collapse the ground.

This is why Ouyang ordered to break the wooden stake tied in advance when there were enough soldiers waiting to enter the trap. As a result, it happened to be one step faster than Zheng Yuanyun's order, so that most of the soldiers of Qingyang Empire were involved in the underground without being prepared or changing their formation, except for a small part of the subsidence, Staring at the pit not far from his feet, he shivered.

What's in there?

Broken leg?

No, it's impossible to tell which is a stump and which is a broken arm.

The bottom of the pit was densely packed, squeezing our brothers layer by layer. People pressed people, people crowded people, and sometimes one or two collision hammers rolled through the crowd. The huge weight made people unable to even cry, so they lost their voice one by one.

This is a mass grave!

No, 100000 people!

The smell of blood rose to the sky, accompanied by the smell of excrement, urine and the sour smell of vomit, mixed together, straight into the nose of the lucky soldiers.

What you see in your eyes, what you hear in your ears, and what you hear in your nose, these three items are added together. Even the most ruthless and ruthless people can't help but feel a sense of nausea straight down your throat at this moment. Many people squat on the ground and spit.

Even when Zhu Yan's soldiers at the head of Tianyuan city saw this scene like purgatory in the world, they were half elated and did not feel happy. Some with poor psychological endurance directly threw up at the head of the city.

Of course, Ouyang's strict execution will not be included in the people who vomit.

The success of the strategy didn't make him half crazy. He just calmly and indifferently issued the second order - Attack!

How can there be no defenders at both ends of the wall?

There are defenders, which means there are catapults and archers. Although there will be fewer than the main gate, there are definitely many.

Ouyang will not be merciful at this time. He will let go of the almost stunned Qingyang soldiers outside the city, even the 100000 people in the pit. Although the situation is miserable at the moment, he can only listen to the tragic cry in the pit. In fact, there are far fewer soldiers killed in the battle than it seems.

So, attack!

Facing the enemy soldiers who didn't step into the trap on the periphery, and also facing the two huge pits!

Boom!

The stone catapults hidden on both sides of the city wall finally roared at this time, and the flaming boulders were thrown into the air. Then they roared like meteorites outside the sky and smashed down!

In the face of the sudden attack, the soldiers on the periphery were still better. Those who responded quickly could not spit any more. They pulled their comrades in arms and ran back.

But those in the pit, pressed under others, or at the top, who are trying to climb up, their luck is not so good.

A large part of the shells fired by the catapult are accurately hitting the pit. There is no one position in the pit. It only needs the standard two large pits. For such a large target, even if Ouyang's strict catapult troops do not use Chen Ze's method of judging the accurate position by coordinates, it is absolutely impossible to miss.

There were two meteor showers in the sky, one left and one right, falling madly at both ends of Tianyuan city. The two big pits were full of flames. With the meteor falling, even incomplete figures could be seen flying directly, and then falling heavily.

At this time, the two big pits have become two huge furnaces, but what is burning in the furnace

It's all human life!

Zheng Yuanyun's eyes and canthus were about to crack. For a moment, even his breathing seemed to stop. A total of 400000 troops on the left and right sides were afraid that less than 100000 people could escape the great disaster.

The whole 300000 troops are gone?