In the entire roller world, the locust tree tribe where Lu An is located is not the only one.

On another side of this roller land, Yu Yan (a mercenary in time and space) looked at the giant shaft in the center of the roller, and the light projected by the artificial light source on the huge shaft shone on the earth. Yu Yan raised the white jade spear in his hand, but Yu Yan's large number of humans around him knelt down devoutly, worshiping Yu Yan like a god. Yu Yan's back, a big flag was erected, and there was a winding beast on the flag. The beast had two horns, four legs and five claws. It was not that Yu Yan didn't want to draw more detailedly, but in the vision of Xuan, it was best to draw golden scales, but the linen can only be dyed like this. (The linen cannot support a high-pixel pattern)

When the flag was erected, it seemed that it was touching the ground on the giant shaft. An aircraft flew down from the giant shaft, which surprised Yu Yan very much. When he was about to activate his talent, Yuanyi Light Screen issued an order, which made Yu Yan quiet.

The aircraft flying down from the giant shaft did not attack the humans holding stone spears on the roller ground, but instead flashed a few times.

The pious humans kneeling on the ground buried their heads deeper, because in their eyes, the angels flying in the sky sprinkled holy light on their leaders, which was equivalent to the heavens recognizing the things that were propaganda.

Faced with everyone's piety, Yu Yan grinned at the sky, showed an expression of boredom at the aircraft that took photos of himself in the sky, and Yu Yan hated the smell of being stared at.

However, Yu Yan did not struggle for a long time. The hundreds of soldiers kneeling in front of him had been motivated by this strange phenomenon in the world. In ancient times, morale was more important than the number of troops. In the Battle of Guandu, Cao's army, who took the emperor to command the princes, believed that he was the emperor's troops to fight against rebellion. He did not collapse under several times of military pressure.

The soldiers under Yu Han's command picked up the shield made of rattan and held the stone spear in his hand to form an army. There were even long-range attack units in this army. Twenty soldiers holding stone casting ropes had the attack power of the stone casting ropes as much as that of the bow and arrow, but the problem with the stone casting ropes was that when throwing stones, everyone had to be very open, otherwise it would be easy to throw and hurt others. The bow and arrow could form a dense queue.

But now this is not a military battle of tens of thousands of people, but a battle of hundreds of people. The catapult attack troops are very effective.

The expansion began. Compared with Lu An who wanted to act subtly and slowly, Yu Han, Dong Ming and Yang Jie, the three time and space mercenaries, decided to point all the technology points to the military after meeting. Their rattan shields, stone spears, and stone daggers were imitated by Roman battle formations. After training soldiers to form a formation, they used shields to form a shield wall. After throwing a round of spears, they held the shield wall and hit the opponent, and then stabbed people with a short blade through the gap that exposed the shield.

This kind of military technology is very advanced at present, and it is the tactic of the Greek city-state dominance in the Mediterranean. Of course, this fierce tactic also needs to be accompanied by another transportation technology, that is, ships. Only ships can provide maneuver power for this unit. A spear, a shield and a dagger doesn't seem to be anything, but in fact, every time you carry two kilograms of items and walk ten kilometers, the consumption is different.

If there is no such a long river in Yan District, Yuhen’s military technology is actually a wrong technology tree. Now with the large number of bamboo rafts and canoes on the river, this technology tree is correct.

When these soldiers with vine armor came along the river to the villages, they would first set up the recommended lever catapult, and then fix a section with hemp rope. Put stones on the ridge section and pull the hemp rope. The lever is raised high, and the burning wooden blocks will drag the green smoke into the village.

Then the warriors in the village would run out and use a chaotic formation to hit the shield wall of the Dragon Tribe. As a result, after dropping several corpses, the warriors of the entire tribe were surrounded by the shield wall and dropped their weapons and surrendered in panic.

The surrendered tribes will be robbed, men will become slaves, women will become property, and the elderly will be killed. (There are no children in the roller world.) All the dead bodies will be thrown into the wilderness and will be eaten by unknown birds and beasts. Perhaps some things that are not biological will also land.

The Dragon Tribe attacked seven villages within six months, captured six times the population, and became slaves. If it participated in the army and successfully fought, it would become a member of the Dragon Tribe. It would be assigned women, food and slaves. After the Dragon Banner kneels down, it would be considered a member of the Dragon Tribe.

Under the guidance of regret, the entire tribe began to digest the surrounding population at an astonishing speed.

The impact of the Dragon Tribe on this roller land is not just that. A large number of tribes began to flee to the south, and the territory of each tribe is a hunting economy, which relies on the amount of animal reproduction in the mountainous areas. Moreover, if there are top predators in the mountainous areas and humans snatch food, the hunting economy is unstable.

Therefore, tribes cannot accept so many people, and a large number of people are still in a row.

The camera switched to Lu'an. Lu'an understood what happened in the north. Lu'an was able to cruise around in the rehearsal. The reason why he was cautious in reality was that he was afraid of causing harm to this fragile roller world. Lu'an did not think he could survive in the vacuum. Through the rehearsal, Lu'an knew that the space-time mercenaries like him had already taken action.

Luan did not have any anger about what the three time and space mercenaries did. The unification and integration of the tribes would inevitably lead to conquest, occupation and killing, and would inevitably lead to slavery economy. Luan felt that many emotional states in his multi-union state were not suitable for these, but Luan would never think that it was wrong for other people to do these things.

Lu An was surprised by another thing, that is, the elderly in the village were performing rituals in the past few days, using flames to set up a strange symbol on the ground, and for three consecutive days. When he felt the strange Lu An asked the conclusion with a preview, he looked forward to his successor coming to this world again.

Lu An sneered, but Lu An then used a physical computer to calculate a situation, that is, a bird flew down from the giant shaft above. The old man understood what the bird was doing, looked at the bird with a smile, flew to him, and pecked at the neck, and then the old man died.

This scene was not stopped in reality, because if Luan stopped the bird and shot the bird, the old man would fight Luan with red eyes, and the people around him would not stand beside him and look at Luan with cold eyes to destroy tradition.

However, during the rehearsal, Lu An removed the bird. The bird was purely mechanical and had two tubes inside, one was a tube that collected blood, and the other was a tube that injected some kind of liquid. Through the old man's death and the anatomy in the rehearsal, Lu An determined that it should have died of neurotoxins such as sea snakes.

People in the tribe are not surprised by this. Lu An asked someone else in the tribe and asked, "This is a blue bird, a bird that brings the suffering people on earth to heaven." After the orders conveyed by God, he will be sent back to the world again.

Lu An was stunned for such an explanation, and then recalled what the electronic machinery system said to him, "Enjoy life well." Lu An suddenly understood something before he arrived in this world from the spacecraft's technology warehouse.

A few days later, someone ran out of the mountainous area. These people were wearing white and light clothes. These clothes made of thermal underwear were definitely not woven by tribal technology.

Luan also wore such clothes when he arrived in this century. That is to say, after a person died in this spaceship, a newcomer was put down again. However, the face of this newcomer, Luan felt very similar to the dead old man.

After introducing these ignorant people who only have language memory and some common sense of life into the tribe, Lu An asked the elderly in the tribe and then flew to inspect the remaining bodies of the destroyed tribe in the north.

The fact seems to be that the population of this drum ecosystem is constant. How many people will be sent to death will be sent, and everyone here will be unable to have children, which is why this ecosystem has no children.

After guessing this fact, Lu An was confused and directed the newcomer to farm and conduct further experiments on the world.

At night, Luan discovered a mechanical bird. After the bird flew above Luan, Luan used the guide to press the bird tightly on the ground, buried the camera in the mud, and then threw some things into the collected glass bottle.

A few minutes later, Luan walked back to the house and let the bird go to heaven.

Lu An drank seven times in seven days, and let these bionic birds collect pig blood, cow blood, sheep blood, and fish blood, but no more creatures were found in the ten-kilometer range. It seemed that only humans were sent into this drum land in the life capsule. Lu An thought about it and felt that it was correct. After a rehearsal and directing computer, all-round investigations on the surrounding ten-kilometer land, pigs, sheep, cattle, and Lu An could still see young cubs moving in the mountains. In other words, there is no need to be cultivated by these naturally reproduced species.

Just when Lu An began to make a conclusion, he continued to do the eighth experiment out of his habit of doing everything, and the tiger roar in the mountains that night made Lu An stunned. Lu An had to correct his guess: "There are some knowledge of advanced predators in this drum spacecraft."

Lu An immediately formed a hunting team and entered the mountain that day. Then Lu An looked at the tiger who died in a trap on the mountain. He was peeled again, corresponding to the stripes on the previous tiger's skin. Looking at the consistent pattern, Lu An confirmed that the genes of the two tigers should be the same.

Seeing this scene, Luan's second-class rehearsal of 60% could not help but look up at the huge axis of the sky, feeling frightened by the purpose of the inexplicable forces on the axis.
Chapter completed!