After all the commanders of the newly established First Brigade of Earth Combat Knife appeared on the stage, the inauguration ceremony of the new composite combat unit ended with the solemn national anthem.

After the ceremony, all the members of the 1st Earth Combat Knife Brigade returned to the No. 5 military base in the theater for combat training, waiting for new combat orders in the theater.

A month later in the night.

300 kilometers away from the underground secret wartime military research center, and 500 meters deep under the endless mountains of Mianyang, is the No. 3 underground military base in the Southern Theater.

Among the various arms of the military base, there is a mysterious unit.

This force is not the largest in this base, but the level of secrecy is very high. Even the other units that live here are nominally living together here, but in fact they are trying to cover up the secret that this unit is stationed here.

This mysterious unit is not only equipped with the army, the aerospace force, the navy, intelligent machine armor, underground submarines, powerful information resources and attack forces, but also has the authority to mobilize nuclear submarines.

This unit is naturally the First Brigade of Earth Combat Knife, which was formed and stationed here just a month ago, and is composed of mutants and special forces injected with new biological agents with improved genes.

The reason why it is mysterious is that firstly, it does not exist in the open sequence of the army, and secondly, this unit has been in a state of fully closed training since its establishment, and all members have not stepped out of the station.

Obviously, this is an elite unit that the Military Commission and the headquarters have put a lot of effort to build, ready to be used as a sharp knife unit for the Maltese counteroffensive.

In a rest room in the troop station, Yang Yi, who was wearing a blue alloy suit, was pacing slowly in the room, looking like he didn't feel sleepy at all.

Yang Yi's face was not only completely sleepy, but also looked in excellent spirits.

"According to the seniors, the memory links implanted in the brains of the younger generations can still be restored?" Although Yang's lips didn't move on the surface, he was talking to someone in his brain.

"Yes, the things implanted in your brain by the fourth-level planetary civilization lifeform of the three-dimensional universe last time can indeed be restored, but it is not as easy as you think.

Since the last time the old man forcibly changed the frequency of your brain waves, restoring your own memories and restoring the memories of other terrestrial life forms linked to your brain, but was forcibly cut off by the Maltese you said, and re-implanted some kind of interfering brain wave frequency in the brains of these living beings connected to your brain.

Your current brain has a strong repulsion with these lifeforms, and in your current situation, it is not easy to reconnect with the brains of those mutated lifeforms that have completely become puppets, and recover their memories! The voice in Yang Yi's brain sighed, sounding a little helpless.

This voice was the power of consciousness in Yang Yi's brain when he encountered the high-dimensional life energy in the space-time node of the four-dimensional space. This mysterious life energy from the high dimension is so powerful and incredible, although it seems to be nothing, it has helped Yang Yi get rid of the holding dilemma many times.

And Yang Yi never figured out what it was.

Judging from the fact that Yang Yi was pacing in the room at this time, it was obvious that he had been discussing with the voice in his brain for a long time.

"Then, according to the opinion of the seniors, when will the juniors be able to recover the memories of the remaining more than two million mutants and control the Maltese pentagon spaceship fleet through memory links?

The predecessors also knew that the Centauri Maltese have now fully occupied the earth and begun to transform the earth's environment, with the current situation of the earth, I am afraid that it will not be long before the earth's atmospheric composition and living environment will undergo drastic changes, becoming a planet that is only suitable for the Maltese to live, and is no longer suitable for human survival.

Even if we don't carry out large-scale slaughter, I'm afraid that humanity will gradually die out because it doesn't fit into the new environment, so what's the point of fighting once most of humanity disappears from the earth? ”

Yang Yi said worriedly as he paced.

"Don't worry, kid, although your home planet is only an extremely low-level life planet in the three-dimensional universe, it can't be compared with the high-level civilization planets in the high-dimensional universe, and even the civilization in the same three-dimensional universe can't compete with it, but it's not as fragile as you think.

Do you think there has been no mass extinction event in Earth's history? As Mr. Gu knows, in the last 500 million years of the earth's evolutionary history, there have been no less than six mass extinction events, and on average, every less than 100 million years, the earth's biosphere will almost reshuffle. ”

The old man's voice in Yang Yi's brain said indifferently.

"What? What do you mean by that there have been as many as six extinction events on Earth in the last five years? ”

Yang Yi asked in surprise.

"What's so strange about this, the destruction and birth of planets in the universe is a common thing, those middle and high-level planetary civilization life races in the high-dimensional universe are at risk of being destroyed by a more powerful civilization if they are not careful, not to mention the low-level planets in the three-dimensional space of the earth.

Similar to the solar system, there are many small star systems revolving around the Milky Way, and every time a star system like the solar system rotates close to the great black hole at the center of the Milky Way, it is affected by the gravitational field of the great black hole in the center of the Milky Way.

The trajectory of neutron stars and small and medium-sized black holes that are originally far away from the sun will also undergo some changes, and often these seemingly inconspicuous changes in the Milky Way are enough to make some black holes or neutron stars change their original trajectories closer to the solar system, or a superstar explosion of a giant star that is about to be destroyed will produce a gamma-ray burst in the direction of the Earth.

In either case, an asteroid will hit the earth's surface, directly extincting an evolving species, or destroying the entire planetary ecosystem.

There is a more serious situation, two or more constancy systems collide and engulf each other to form new neutron stars, black holes, entire galaxies are directly smashed by neutron stars, or black holes are completely swallowed.

This is still the natural evolution of the entire star system, without any civilized planet interference, otherwise some strategically important star systems with military value are directly swallowed by some highly developed dark civilizations, directly creating black holes to swallow or forcibly reduce dimensions, and it also happens from time to time in the universe of all dimensions. ”

The old man in Yang Yi's mind ignored Yang Yi and continued.

"In this way, the earth has not been smashed by neutron stars, swallowed by black holes, nor has it been destroyed by huge gamma-ray bursts and dark civilizations since its birth, which can be regarded as relatively lucky."

After listening to the story of the high-dimensional cosmic life in his brain, Yang Yi was extremely shocked in his heart, the blue planet of the earth where he was born was so weak in the eyes of high-dimensional cosmic life, and even the destruction of the entire solar system was not a big deal in the eyes of the other party, is it really as the other party said, the entire earth civilization and even the solar system seem so insignificant in the Milky Way?

Yang Yi couldn't help but stop pacing in the room and fell into deep thought.

"Boy, you don't have to bother guessing anything. As you said, although some species have been extinct in the past history of the earth, there has indeed been no event that could destroy the earth, so that life forms like you have the opportunity to evolve into intelligence and eventually create civilization, so that you can meet the old man in the space-time fault zone of the four-dimensional space by chance.

Maybe it's a coincidence, anyway, you and your home planet are lucky.

As for the so-called Maltese that you are worried about, how can a medium-level fourth-level life star system in a mere three-dimensional universe have the weapons to destroy a star system?

As long as he does not change the distance between the earth and the sun, there is a way to keep the earth and human civilization.

If the old man does not encounter the conspiracy of the great enemy, let alone a mid-level fourth-level star system civilization, even those racial civilizations that have super black hole-level weapons, can change dimensions in certain regions of the universe, and can even forcibly zero the three-dimensional universe, are also vulnerable in the eyes of the old man. ”

The voice in Yang Yi's head snorted coldly, recalling his glory back then, and there was a bit of pride in his tone, and he didn't take the Maltese who were invading the earth in his eyes at all.

"Senior, what should the junior do next?" Yang Yi was silent for a few minutes, and then asked.

"It's very simple, didn't the surviving forces on your earth side form a so-called counteroffensive force, and you are still the commander, although such a force is not worth mentioning for the time being, and it cannot compete with the invading fourth-level civilization system, but something is better than nothing.

You only need to gradually increase the strength of your own camp, while waiting for the energy fused by the old man and your body to gradually recover and become stronger, and when the energy in your body returns to a certain critical point, the old man will naturally tell you what to do. ”

After the voice of high-dimensional life sounded in Yang Yi's head again, it suddenly disappeared without a trace, no matter how Yang Yi waited in his brain, there was no response, it seemed that this high-dimensional life form had ended the conversation with Yang Yi.

After listening to the voice in his head, Yang Yi said the last sentence, but his face became cloudy, and he began to pace back and forth in the room again, obviously feeling a little unhappy in his heart.

Since the other party's life energy was integrated into his body and he was able to talk to himself, Yang Yi could not actively contact the other party in his brain without the other party taking the initiative to contact him.

And this time, the other party suddenly talked to him, which also happened when Yang Yi was unprepared.

Although this guy told himself a lot of information, he couldn't immediately change the disadvantage of the human side of Earth in the war.

Even if the tone of this high-dimensional cosmic life form is not small, there is no shortage of means. But for Yang Yi, who is now the commander-in-chief of the First Brigade of the Earth War Knife, it seems a little beyond his reach.

Half an hour later.

Yang Yicai returned to bed to rest a little tired, it seems that the conversation with the voice in his brain just now is also very energy-consuming.