On Earth, many living things have natural predators that rival them.

Like cats and mice, mosquitoes and spiders, frogs with all kinds of insects...... This kind of food chain, which has evolved from ancient times to the present, is, to put it bluntly, the most fundamental contrast between the strength and weakness of living things. They have existed since ancient times and will continue on a fixed trajectory.

Of course, lions can eat rats and grasshoppers to survive. However, lions are rare, and never even bothered to do such things. Because the amount of meat in that bite is so small. Instead of wasting time and energy, keep up the strength to chase zebras and catch antelopes.

Ants eat elephants, of course, but that's not their main source of food. Through factors such as area, species, quantity, and individual size of organisms, the corresponding populations are gradually fixed on the earth, and then exist in the genes of each organism in a genetic way.

It has become a fixed biological instinct for a mouse to tremble when it sees a cat, and for a bird to run away when it sees a snake. Although some parts can be erased through acquired training, like the bear and duck performing on the same stage in the circus, in essence, it has become ingrained in the genes and has become an eternal imprint in the depths of the mind.

According to research in the future world, 70 percent of the mutated creatures entrenched in abandoned cities are infected by insect genes, 20 percent have the genes of rats or small mammals such as cats and dogs, and the remaining 10 percent are mutant zombies (violent corpses or wild corpses).

This data is actually not accurate, and among the different types of mutated organisms, there are actually many genetically complex evolutionary individuals. In the military's archives, Su Hao has seen the records of tiger people, lion people, deer people, and turtle people more than once. The reason for the creation of these special individuals is nothing more than the local zoo or breeding farm in the abandoned city. Especially in some fresh supermarkets near the eastern coast and inland cities, crab people and fish people have even been found.

However, no one can deny that insect-type mutants make up the vast majority of them.

It is a very peculiar phenomenon that many monsters coexist in the city.

The Academy of Sciences has not been able to figure out how cats and rats can sleep in the same room without biting and fighting each other? In the twenty-second year of the Black Age, a researcher attempted to place feline pheromones in a cage captive for catmen and ratmen, resulting in a fight between mutated creatures, with two cat-men and six nezumi killed. Those crazy monsters sat on the pile of corpses and munched on them, and eventually ate them to death.

They are indeed natural predators, and the instincts hidden deep in the genetic chain are always there. As for what has not caused confusion before...... The most recent research result of the Academy of Sciences is to understand it as "insufficient concentration of pheromones".

Mutant creatures seem to know the importance of peaceful coexistence. In confined spaces, they hide their hostility towards each other and reduce the amount of hormone they release, resulting in a strange scene of wolves and white rabbits in the same room.

According to Su Hao's request, the "Nighthawk" helicopter dropped a large number of pheromones of dragonflies, frogs and spiders in the core area near the south of the city. These extremely high concentrations of hormones cause immediate confusion in mutated groups. Although the surrounding space is very narrow, it is not completely enclosed after all. In panic, the cockroaches, mosquitoes and flies in the opposite position began to flee frantically around. Due to their own population characteristics, they quickly gather large numbers. Although other mutated creatures are not sensitive to pheromones, they are carried by a massive shock tide and run wildly towards what they think is safe.

When the minefield was set up, the search force had already followed Su Hao's order to plant explosives inside the tall buildings in the area, causing the buildings to collapse in the predetermined direction. When the road is completely closed, and the area behind them is filled with a powerful threat from natural predators, the mutant creatures are naturally left with only one passage directly ahead.

"Fire ————"

As Liu Jiangyuan gave an order into the microphone, in an instant, the rough and piercing dense gunfire pierced the silence above the defense area. Hundreds of machine-gun positions erupted tongues of fire, and the bullets that flew through the air accurately hit the bodies of mutant creatures, knocking them off balance on the spot, splashing dense blood in the air and stumbling and falling, bringing over the vast swath of monsters that followed them.

"Keep shooting and kill all these damn bastards————"

The direct-aim guns erected at the top of the rear fortifications fired shells, causing explosions and deaths in the depths of the dense hordes of monsters. The caliber of these guns is less than 50 millimeters, and even if the fire coverage is carried out against a certain area, the shells are not powerful enough to achieve annihilation. However, as a fixed defensive device in the main direction, the threat to a single target is far greater than that of an assault rifle, both in terms of range and firepower.

The 517th Division has been besieging Lujiang County for several months. In order to strengthen the position, a large number of reinforced concrete fortifications of varying heights were created around the road. In addition to these, the roof of the nearby higher building was also set as a machine gun position, and in order to achieve the best results in this battle, Liu Jiangyuan transferred two infantry fighting vehicle brigades, which were placed along both sides of the kilometer base, and used ferocious vehicle-mounted machine guns to block the wild pace of mutant creatures.

Su Hao's plan was very ingenious———— in addition to planting explosives inside the building, the soldiers also set up more than 30 small sealed metal canisters in the neighboring block. These cans have been opened sequentially by remote control according to the speed and time of the impact of the mutated creatures. The pheromones stored in the tubes were soon propelled by the air currents to form a wall in the south of the city that was spacious enough to be a "dead end" for mutant creatures

Yes, it is a near-fixed airflow.

During this hot season, there is usually no excessively strong wind. In addition to carrying canned pheromones, the helicopter was also equipped with a high-power directional blower. The hormones that permeate the air are carried by the wind, enveloping the mutated hordes like poison. With nowhere to run, they desperately weave through the cracks of crumbling buildings amid the sound of cannon and gunfire. In the end, he could only follow the line drawn by Su Hao on the map and escape along the central avenue to the outside of the city.

Su Hao didn't release too many pheromones, nor did he release more kinds at the same time. The throwing site was not located in the core of the city, but was shifted five hundred meters to the south.

According to rough estimates, the number of mutated creatures gathered in the city has exceeded 100,000.

In the dictionary of monsters, there is no word "surrender". Of course, they didn't want to die, but they didn't evolve the corresponding intelligence.

The 517th Division had a limited number of soldiers and could not impose a tight blockade on the entire city. Especially when a large number of heavy groups are deployed on the southern road, the defenders in other directions will naturally be reduced by a part.

"Separating the flow of regions" is a tactical term in the future world. Its implication specifically refers to the fact that when the number of mutated organisms in a fixed area is too large to be annihilated at one time, the mutated biological groups are separated and reduced in batches by means of light, sound waves, smells, etc., and finally the goal of total annihilation is achieved.

Creatures are not machines, they have independent minds, and even humans, in the midst of panic and confusion, will follow most people in a fixed direction.

Although, it is not clear to them themselves whether it is safe there? Or is it a path to death?

The roads, which are hundreds of meters long, are crowded with various forms of insect-like mutant creatures. They fly over walls and truths, gliding through the air with their newly evolved hard wings. Several carapace-shaped humanoids had just jumped dozens of meters and landed on the ground, where they were immediately trampled by the swarming ant-like humanoids as stepping stones.

Looking at the dense red dots of light representing mutated creatures on the electronic map, Liu Jiangyuan's pale face gradually showed a large flush. He clutched the microphone tightly, his eyes fixed on the approaching humanoids and corpses. When these hideous and terrifying creatures braved the rain of bullets and bullets to keep rushing forward, and then occupied almost the entire street, Liu Jiangyuan finally roared into the microphone with unspeakable excitement and ferocity.

"Detonate ————"

With the command transmitted by the electronic signal, the houses on both sides of the highway that were 100 meters long exploded, shooting out tens of thousands of dense steel balls and fragments, completely blocking the entire street, forming a bloody hell road full of flesh and blood corpses.

On this road, Su Hao laid thousands of directional mines.

These mines do not need to be buried, but are placed in improvised holes in the walls of houses. All mines were detonated on the road side, and they were detonated by electronic signals. The splinters of steel balls that flew in a fan could instantly envelop the entire road, mercilessly striking, cutting, and tearing wildly between blood and flesh.

In the biological warfare of the future world, directional mines with metal fragments as the main killing method are widely used. The area of energy radiation they cause is not large, and the area created by the explosion is small, but the fragments released are so numerous and dense that once triggered, it is impossible to dodge.

The military department strictly prohibits the use of large-scale energy explosive weapons, but does not control fragmentation injuries caused by directional mine explosions.

These orders once puzzled Su Hao, and he spent a lot of time researching, and finally searched for the specific implementation rules from the military department's computer.

In fact, there is only one prohibition from the military department———— it is strictly forbidden to use energy-type weapons with a destructive power of more than 50 by 50 (meters) corresponding to the area.

The "destructive power" mentioned here refers to the effect of killing on the spot with the intensity of the explosion of a "" class mutant creature in a specified area. According to the military's computer, high-power lasers and electromagnetic cannons with linear attacks are not prohibited, and the casualties of metal fragments caused by directional mines are not included. Because the former has a limited damage area and only has an effect on single and linear targets, the latter does not belong to the category of energy explosion, although it will cause fragment injuries. At best, it is nothing more than a chemical detonation within a controlled range.

There are many things that are obscure in the literal sense, and the specific function can only be understood when actually operated.

The streets filled with mutated creatures and filled with powerful crashes and roars quickly fell silent. Thousands of humanoids and corpses had been reduced to pieces, and the mutated creatures in the middle of the road had suffered less damage, but their flesh was still blown to shreds and covered in wounds of all sizes. They struggled in the flesh and blood of their own kind or companions, the ground was a blur of flesh and blood, and thick corpses were stacked on top of each other, nearly two meters above the ground. Some of the specially constructed frogoid bodies were cut open by shrapnel, and yellow-green slime continued to flow from the torn body. The liquid was distinctly strongly acidic, and as it flowed over the surface of other corpses and pieces of flesh, it always emitted a faint pungent smoke that made a terrible "snort" sound.

A few minutes later, the tall wall of flesh and blood was pushed open from within, swarming out of thousands of mutated creatures once again. They have no interest in the fresh cuts of meat everywhere, and their simple-minded brains have no extra thoughts other than running away from the city as quickly as possible.

Killing, getting simpler and simpler.

The junction is tightly cordoned off by machine guns and artillery, and tens of thousands of directional mines are installed along the two-kilometre-long road. The helicopter monitors the battle situation in the air and transmits back the number of mutated creatures in each section at any time. Based on the congestion on the screen, Liu Jiangyuan ordered the mines on both sides of the road to be detonated in sections...... In this way, under the continuous explosion and rain of bullets, tens of thousands of mutated creatures finally failed to escape the city. They were either killed on the spot, torn apart by bullets, or crushed by collapsed houses, dying in the howls of fear.

The hands on Su Hao's watch have just run past the thirty-sixth space.

There was no trace of mutated creatures on the road. As far as the eye can see, there is blood and corpses, like a river filled with red liquid, and the corpses are floating islands flowing with waves on the surface of the river.

The Nightshadow helicopter signaled that it was about to leave, and the electronic screen was filled with a bloody mist, with only a few mutated creatures struggling among the rubble with serious injuries and dying. The sun still hung in the sky, sprinkling hot arrows and rays on the earth, as if satisfied with the bloody battle that had just ended, intending to wait for the night to fall, and reminiscing about the excitement and excitement in their sleep.

There was silence on the positions of the 517th Division.

Liu Jiangyuan slowly took off the oxygen mask and looked at the city with an emotionful expression.

He had been fighting here for months, and had eliminated no more than 12,000 mutated creatures. As for the price paid...... The 517th Division suffered thousands of casualties before and after, and was almost forced to retreat to Nanyang Base City and fully accept personnel replenishment.

"It's only been a day, an hour? No, it's not, only forty minutes at most. See how many we've wiped out. It's just horrible, I never thought there would be such a way of fighting. 10,000, 20,000...... No, there are at least 30,000 heads here. Thirty thousand————"

Animal pheromones that permeate the air are gradually fading and are unable to cause harm to humans.

The positions were covered with a thick layer of shell casings, the heavy machine gun towers near the armored fighting vehicles had changed their barrels six times in a row, and empty ammunition boxes were piled up in the ring fortifications.

Liu Jiangyuan's actions quickly infected others.

Officers and soldiers were constantly taking off their oxygen masks and breathing heavily in the air with strong blood. They were shocked at the amount of damage they had done in such a short period of time, and many of them stepped out of the fortifications and walked down the street with hesitant and surprised expressions, allowing the blood to soak their boots in the calf-deep blood, as if walking in the fabled river of hell blood.

Huang He stood beside Su Hao, his eyes straight, and his open lips trembling uncontrollably. Perhaps wanting to use nicotine to expel the confusion in his mind, Huang He took out a cigarette from his pocket, but couldn't pinch it with his fingers. I finally stuffed one into my mouth, but when I pulled the lighter, it fell out of the gap between my lips.

Except for Su Hao, no one has ever seen such a bloody and tragic scene.

This can no longer be counted as a battle, but a massacre.

They have no brains, no intelligence, and they stupidly burrow into traps by biological instinct.

If it were human, it would definitely not die so much.

At the very least, humans wouldn't be hit twice in the same trap.

But they're not, they're mutated creatures.

We are taking revenge, we are taking revenge, we are taking back the city that was ours, our home.

Huang He only felt that his thinking had become sleepy, his face was very pale, and his eyes looking at Su Hao were full of unprecedented worship and piety.

This is no longer the guiding effect produced by the black particles, even if Huang He's identity is not a "worker bee", his reverence for Su Hao is indeed from the heart.

"It's just horrible, it's unbelievable......"

Huang He dispelled the idea of continuing to stuff cigarettes into his mouth. He broke and crushed the other cigarette he had just taken in his hand, and with the infinite gratitude and excitement that the drowning man had just breathed the first breath of air, he bowed his head to Su Hao with great reverence, and asked in an obviously trembling tone: "Your Excellency, what should we do now?" ”

Only when there are no strangers next to him will Huang He use the honorific title of "Your Excellency".

Su Hao stared at the mountain of corpses and the sea of blood in the distance and did not look back.

After a long time, he gave a faint order: "Order all squadrons to collect the hedron and silver bones as soon as possible." By the way, let those recruits see blood. ”

This was only the first battle.

In order to truly recapture the city, the same level of siege must be continued at least twice.

An hour later, Adjutant Liu Jiangyuan, with a few guards, invited Su Hao to a celebratory dinner held at the division headquarters in an extremely humble and awe-inspiring tone.

It is said to be a dinner party, but in fact, it is a dinner party for middle and senior officers on a division scale.

When Su Hao walked into the division command post accompanied by his adjutant, the crowd that had been waiting for a long time suddenly burst into extremely warm applause.

Liu Jiangyuan introduced Su Hao to all the officers, and everyone stepped forward to shake hands with him in order. People's eyes twitch with undisguised enthusiasm, gratitude, admiration, and respect. Only when they see that there are strong enough people will the soldiers give this kind of courtesy that is not stingy, and there is absolutely no false and perfunctory etiquette.