Under the scorching sun, outside the walls of the entire Zhongzhou City, people did not rest, and they were in full swing.

The roar of the machinery makes people's blood boil.

More than a million people are in the mentality, more than a million zombies assist, tens of thousands of machines, tens of thousands of trucks...... Truly spectacular.

Especially when you look down from the sky, it's even more shocking.

At this time, Lu Chuan was sitting on the back of the corpse dragon, staying on it with Aurora, looking at the hot construction site, he still had a sense of accomplishment.

Aurora had a somewhat adoring look on her face, and in Moscow, the Pope did not have such a appeal, and he could give an order and everyone unconditionally carry it out. And Lu Chuan, his own man, has this kind of power.

If the large construction site, under the segments, these people and zombies are stretched, almost surrounding Zhongzhou City, which is very spectacular.

"It's still a little slower."

The progress below is actually very fast, but Lu Chuan still feels dissatisfied.

Speaking of which, this kind of construction is already the limit, and Lu Chuan has no good way.

Every day, Lu Chuan feels the urgency of time, it seems that this offensive and defensive battle will change the time because of his own unlocking, but this kind of change will definitely not be too long.

Construction, but also need to speed up.

Lu Chuan touched his chin, thinking about what else he could do to speed up. For example, mobilize more zombies to join, mobilize more survivors to devote to the excavation?

The current survivors are already able to draw the highest ceiling, and if there are more of them, it will affect other jobs. Whether it's the Ministry of Agriculture, or the arsenal, etc., a lot of human power is needed.

Soon, Lu Chuan's eyes fell on a zombie floating in the distance.

Dolphin dragons?

The next moment, Lu Chuan's eyes lit up, and he almost laughed.

"yes, why didn't I think of them?" Lu Chuan patted his head, maybe he thought about this moat badly before, and he thought that it must be round.

In fact, Lu Chuan just wanted to prevent invisible zombies, like shadow blades and ghost guards. If there is a moat, it is impossible for them to approach the city of Middle-earth at will.

The effect is like this, as long as it is fenced off, it doesn't matter whether this moat is round or square.

It's troublesome to be round, but if it's square, it's easy.

What will be the concept of the space-time light of the guinea dragon, a squirt? With the presence of the guinea dragon, this moat can be dug in a day, and the rest is to lay cement to make waterproofing.

"Yes, that's it." Lu Chuan smiled.

…………

The people digging the moat suddenly received an order to evacuate the area.

They were a little curious, what was the reason why they started digging and had to stop? For this kind of order from above, many people are not convinced, isn't this a toss-up?

But this order was issued by the High Command, and no matter how dissatisfied it is, it must be carried out.

Countless survivors were evacuated, along with the machines, from the area.

However, they were ordered to stay where they were, at the foot of the 100-meter-high wall, and were not allowed to run around, let alone leave the area within the wall.

Everyone was talking about what was going on.

Soon, they noticed that a large number of guinea dragons, a kind of sleek zombies, appeared in the sky. No one knows what kind of zombie it is, because many people are seeing this kind of zombie for the first time.

This kind of zombie, they have almost never touched.

They can always be seen in the sky above the settlement, but this kind of zombie gives people the feeling that it is completely harmless to humans and animals, like a balloon, floating in the sky.

Occasionally, some of them are close to the ground, and they resemble puffer fish, which also makes many people think that it is more like an ornamental zombie.

This time, the command is commanded by Lu Chuan through the commander zombie, so that the command zombie will gain memory, and the next time if this method is needed, there is no need for Lu Chuan to go out in person.

The size of the puffer fish is usually about 50 meters, but once it enters the combat state, it will become a super monster of 200 meters, which is smaller than the crocodile corpse, but it is also very amazing.

The beam of light it shoots out will spread into a circular light with a diameter of almost 200 meters.

Lu Chuan took Aurora and waited in the sky for the evacuation of everyone below.

After confirming that everyone was evacuated on a certain section, Lu Chuan commanded a dolphin dragon to fall from the sky and fall to the ground.

This is a section of the moat that has just been dug at the beginning, just enough for the guinea dragon to hold.

"Enter combat form."

As Lu Chuan's command was issued, this guinea dragon swelled violently, and in the surprised eyes of countless survivors, it turned into an almost circular super giant monster with a diameter of 200 meters.

The appearance of the guinea dragon really makes people and zombies have no way to relate to each other.

What is the concept of 200 meters? This will appear like a mountain, which really shocks everyone's eyes and makes them a little difficult to accept.

This kind of guinea dragon, which is usually considered harmless to humans and animals, has such a terrifying change.

After entering the battle form, Lu Chuan began to adjust the direction of the dolphin dragon.

It's very simple, and after a few instructions, it's done.

"Little poem, is it accurate?"

Lu Chuan got in touch with the intelligent poem, which controlled a large number of satellites, and was able to accurately calculate the direction deviation of the guinea dragon, etc., and then in front of Lu Chuan, a virtual indicator was generated.

As long as these virtual indicators are aligned, it means that there is no problem with accuracy.

"Boss, it's okay." The little poem responded.

"Squirting."

After Lu Chuan confirmed that there was no deviation in the direction and position, he immediately gave an order.

This guinea dragon broke out as soon as Lu Chuan's order was given. From its mouth, the space-time light that erupted, and the beam of light formed by it, blasted forward.

The light of time and space, which was enough to destroy all the world, vaporized all the dirt and so on in front of him, and blasted out a trench on the ground that was 200 meters wide and almost ten kilometers long.

The terrifying light of time and space, the violent energy fluctuations when it appeared, and the impact it brought made the surroundings seem to have experienced a storm, and countless survivors all opened their mouths wide, looking at this dazzling light.

The light only flashed and disappeared in the blink of an eye, but the destructive power it brought was so great that it frightened everyone.

Who would have thought that this guinea dragon could deliver such a terrifying blow?

Looking at this huge trench ten kilometers long and 200 meters wide, everyone opened their mouths wide and showed a look of disbelief.

The moat, which they thought required the use of huge human power, now seems to be as simple as one plus one equals two, and there is no difficulty.

A guinea dragon completed the blow, it fell into a period of weakness, and then flew into the sky, floating.

The next guinea dragon descended to the end of the ditch.

Just a few minutes later, a terrifying beam of energy reappeared, and the entire air fluctuated violently, suffocating as if all the oxygen here had been sucked out.

Another ten-kilometer-long trench appeared, and the front and back added up to less than ten minutes.

"According to this schedule, half a day's work, and the digging will be done."

"The boss is really a genius, and this kind of solution can be imagined."

"The most powerful thing is still this guinea dragon, who would have thought that it would be so domineering and perverted?"

The survivors, stunned as they stared at the groove that appeared in the second segment, were talking one by one. For them, today was a real eye-opener.

Of course, some people are still full of sorrow.

This is a zombie, if you encounter it in the future, how can you escape? This kind of energy beam, as long as it is swept in, there is no way to live at all.

The role of the guinea dragon that appears here is rotation.

When one of the guinea dragons finished spraying, it lifted off to rest, and it was the turn of the next one. The number of dolphin dragons in Lu Chuan's hands is large, so there is no need to worry about not being enough.

The three guinea dragons are a 30-kilometer-long line, and according to this progress, they can be dug today, and tomorrow they can start laying cement for waterproofing.

Compared with these violent work, there is no skill to speak of when laying cement for waterproofing, and it requires the cooperation of all parties to be completed.

A few minutes of ten-kilometer trenches, and these grooves are as smooth as a mirror, almost one-piece.

The reason why it is still necessary to do waterproofing is because at ultra-high temperatures, there are still some places that are leaky and need to be repaired. Otherwise, the glass layer formed by the ultra-high temperature does not need to be paved with any cement.

Three hours later, a huge square moat was excavated.

I don't know how many people's eyes have been shocked by this kind of speed.

Looking at the horror of this kind of energy beam, if it is used to build highways or railways, just to build channels, I am afraid that this efficiency will be increased by ten times and more than a hundred times. When encountering a mountain range, it is directly sprayed, and it is pierced, and there is no such thing as digging for a few years or ten years.

When the guinea dragon withdrew, I don't know how many people ran over and looked at this huge trench that was five meters deep, 200 meters wide, and more than 200 kilometers long.

The crystals at the ultra-high temperature make this place almost smooth as a mirror.

In most areas, there is no need to lay cement, only need to do a local waterproofing.

In this way, the time and character power saved are greater. There is no need to mobilize millions of survivors, only 100,000 are needed to complete the task assigned by Lu Chuan in a short time.

"Moat, done."

A smile appeared on Lu Chuan's face, the role of the moat was actually mainly to defend against the shadow blade and the ghost guard sneaking up. They are invisible, and it is difficult to spot them.

But with this moat, if they want to come, they need to cross the moat, and the river will be filled with corrosive liquid, and if they dare to wade through it, they will be ready to enjoy the feast they have prepared for them.

Of course, Lu Chuan did not rule out that the other party would use the corpse dragon as a transport body, and then airdrop the ghost guard.

This move is very difficult to deal with, once the other party invests enough ghost guards in the city, there will definitely be ghost guards who can get close to the biochemical factory, and if you don't pay attention, it will cause your own defense to fail.

For the opponent's flying zombies, you can only use the flying zombies to deal with them, and the other is to strengthen the construction of the air defense system, deploy more anti-aircraft missiles, and as long as you find the corpse dragon approaching, you can immediately knock them down.

For this set of air defense system, Lu Chuan plans to exchange it for a quantum computer to replace the current supercomputer, so that its computing power will be increased by tens of thousands of times, so that even if the other party has more than 10 million zombies, it will be properly handled by the quantum computer.

…………

A wall up to 100 meters, what is this concept?

This is equivalent to a residential building about 35 stories high, if people stand under the wall, it is absolutely small, and people feel like ants.

The fence, which stretches for more than 200 kilometers, is completely super engineering.

Surrounding a first-tier city, thinking about it makes me feel that this project is huge. Like in the city, there are many ring roads or ring roads, but the two are compared with the law.

If you build a kilometer of highway, maybe you can build this wall to build ten centimeters.

Many people who participated in the construction of this wall still feel incredible, and they can't imagine how they did it in the first place.

At this moment, a corpse dragon flew above the wall, its back was tied up by steel cables, and more than a dozen steel cables hung down, this time not hanging pods, but a huge steel net woven from steel wire.

This piece of steel mesh is not a casual steel mesh, it has been specially processed, the thickness is very large, and it can withstand ultra-high voltage.

Under the hoisting of the corpse dragon, the steel mesh was pulled to the designated position.

And above the wall, there are a large number of ropes hanging down. Compared to this wall, the workers working here are similar to ants. They were busy, fastening the steel mesh to the surface of the fence.

Huge screws are driven into the wall, and the stencil is fixed and tightened.

Pieces of steel mesh were constantly hung up by the corpse dragon and then fixed. A large number of workers climbed on this steel mesh, and then connected the steel mesh with the steel mesh to form a complete piece.

It is also a sectional operation, where hundreds of corpse dragons serve here, constantly assembling the steel meshes that have been transported from the arsenal and assembling the steel meshes into a super power grid attached to the fence.

When the time comes, you only need to connect to the electricity, and any zombie climbing on it, as long as it comes into contact, there is only one way to die.

In comparison, except that the corpse dragon can replace the crane, there is no trick, and the progress will not be too fast. Fortunately, Shengzai invested in the manufacture of steel stencils in the arsenal, and with enough manpower, the progress was very fast.

And on the top of the wall, a large number of surveyors are positioning the weapon platform.

This needs to calculate the coverage, how to protect the air defense security of the entire Zhongzhou City, and at the same time, it is also necessary to take into account the defense of the ground.

Smart weapon platform, its performance naturally goes without saying.

The technology of this weapon platform was exchanged by Lu Chuan from the biochemical factory, and it was able to be taken over by Xiao Shi and exert its strongest combat effectiveness.

Xiao Shi's ability, even if it is to control 10 million of these intelligent weapon platforms, is not a problem at all, and it can even allow these 10 million intelligent weapon platforms to accurately shoot at points.

Once Lu Chuan replaces the quantum computer, Xiao Shi can completely control hundreds of millions of weapon units, and the combat will be completely intelligent at that time.

In order to make the defense foolproof, Lu Chuan can be said to have put a lot of effort into it.

After proposing these plans, Lu Chuan also handed over the problem of defense to the intelligent group, and they made improvements to the defense of all this.

They are all among the best high-intelligence and high-IQ people, and it is definitely much better for them to solve all kinds of problems than Lu Chuan thinks by himself.

Lu Chuan only participated in the important defense plan at the beginning, and the rest was completely handed over to Sun Jiangong and them, like this kind of work, under his own personal orders, there would be no problem in implementing it.

What Lu Chuan has to do is actually accompany Aurora, occasionally going to the biochemical factory to check the manufacturing situation.

The biochemical factory is now at full capacity 24 hours a day, and a large number of orders will fill the factory, and there are only two kinds of zombies mainly manufactured, one is the guinea dragon, and the other is the dragon.

After comparison, these two zombies should be the most cost-effective among the eighth-level zombies, and they are also the most convenient to use.

Ghost Guard is strong, but it still has too many shortcomings compared to the Dragonfly. With one maneuver, the Ghost Guard is too far behind, especially in defensive battles, and what should be enhanced is the power of the air.

It is most appropriate to use the maneuver of the dragon to intercept the approaching flying zombies in the sky. As long as there are enough of them, even if a crane only stops one opponent's flying zombie, it can completely prevent the opponent from attacking through the flying zombies.

Needless to say, its importance is also one of the best.

Whether it's defense or offense, line up the dolphin dragon, and then bombard it directly, the method is rough and useful, it can be said that it is the strongest spear, and the attack is used instead of defense.

Of course, the crocodile corpse is important, but Lu Chuan has not unlocked it yet, and it cannot be manufactured for the time being.

The entire city of Zhongzhou is in full swing in the construction of fortifications, making this place a huge construction site.

The new human troops, as well as the army, Lu Chuan did not let them withdraw, and their task was still only one, which was to expand the security circle, with Zhongzhou City as the center, and spread until it was connected to the security circle of other settlements.

Their retreat will need to wait at least until the countdown to the siege is confirmed.

"I'll leave it to you to keep an eye on, I need to leave for a while, and I need to patrol the other settlements." Lu Chuan found a reason and handed over the work here to Aurora.

After doing the math, it's been almost a month since I announced the experiment, and I always need to show it.

Lu Chuan also thinks about his wife, children, and parents, people have feelings after all, and it is impossible to ignore them.

Aurora didn't have any doubts, so she naturally stared at Lu Chuan's work here. She didn't just have to keep an eye on the project, she also needed to go to the wolf's lair and the arsenal to keep an eye on the progress of both.

In her opinion, Lu Chuan shouldered the burden of the whole of China, and inspecting the settlements was a means of consolidating the power in her hands.

Otherwise, in a settlement, if you don't show up once in a few months, your sense of presence will decline, and it will give opportunities to those who have power, and it is easy for things to happen.