Between the three star systems of the southern cross arm of the Milky Way, this place has become a huge construction site, and countless spaceships have flown in and out of the three star systems, carrying a large amount of materials to start a new round of construction inside the Earth Federation star system.

Now that it has been a year since returning to the galaxy, the Earth Federation has found a nearby location that is rich in supplies after all, and has begun to build a star system, while collecting the materials needed by humans and the Mandi to break through the fourth-level civilization.

Compared to when humans left the galaxy, the galaxy has changed its appearance.

Basically, on the planets inside every star system, there are special rare metal mines, and the special rare metals that are scarce in the Big Magellanic Galaxy are simply everything in the current Milky Way. Even the current reserves of special rare metals in the three star systems around the Earth Federation are about the same as the total of all the special rare metals mined by the Earth Federation in the Big Magellanic System.

Regarding the changes in the Milky Way, Xiang Qian did not get to the bottom of it, even if he didn't have to think about it, he knew that such changes were related to the rules of the universe.

The most important thing for the Earth Federation now is not to consider why there are so many special and rare metals in the galaxy, but to make every effort to mine data to break through the fourth-level civilization. Then go all out to climb the technology and make the Earth Federation travel at least 300 times the speed of light.

If you want to reach the Andromeda Galaxy, you have to cross the cosmic void of 2.25 million light years, between the Milky Way and the Andromeda Galaxy, there is no material to replenish, even the most basic particles, in that void is pitiful.

Therefore, before the Earth Federation is in the kitchen, it must reserve enough supplies, otherwise once the materials are consumed halfway, it will only wait for death.

"Boss, discover a fleet of civilized races 35 light-years away. The number of warships is more than 2 million, and according to the current number of observations, it has been determined that this civilization race is a third-level peak civilization. This is the ...... reported by the General Staff."

"No need to report it. Later, the third-level civilized fleet will be discovered, and the staff will be after formulating a response plan. It was directly handed over to Zhang Lei, Wu Wei, Yang Guang, Li Cheng, and Zhao Ming for joint discussion and approval, and there was no need to report to me.

Unless it involves a level 4 civilization or needs to mobilize the power of the Green Star Civilization, the Silver Wing Civilization, the Mandi Clan, and Regetlos, report it to me. Xiang Qian interrupted the starry sky and waved his hand and said.

"Okay, boss."

After Xiang Qian returned to the Milky Way, he began to consciously exercise the staff of the Earth Federation, and the number of times he remotely commanded became less and less. Basically, the big and small issues within the Earth Federation are decided by various functional departments.

And for other civilized races. As long as there was no threat to the Earth Federation, Xiang Qian also began to gradually reduce the number of decisions and began to train the staff. Now his main focus is entirely on the scientific research work of the Earth Federation, and he is less and less concerned about other things.

But even so, his power has not decreased, and the entire high-level military department is basically the people he arranged, Zhang Lei and these people are all old people who have followed him since the beginning of the last days. Therefore, delegating power will not affect his control of the Earth Federation, but will allow the Earth Federation to get more exercise, even if he is not in the Earth Federation, he can run very well.

Half a year later, the total human population reached 60 billion. Finally stopped growing.

After Xiang Qian received the notice from the starry sky, he also went to inquire about the Mandi tribe of Kaiya, and the answer he got was that the total population of their Mandi tribe had also reached the upper limit. The number of people is also limited to 50 billion people.

In this way, the upper limit of the population of the evolutionary civilization is 50 billion people, so after the human race breaks through the fourth-level civilization, the total population limit should be 200 billion people.

"Starry Sky, is the current reserve of special rare metals enough for humans to break through to the fourth-level civilization?" Now that the population has reached the upper limit, it is time to start breaking through the fourth-level civilization.

"It's not enough, according to the design requirements, the current reserves of special rare metals are only 35 percent of the breakthrough demand."

Xiang Qian knocked on the table helplessly after listening and didn't say anything more.

After a while, the starry sky reappeared. said to Xiang Qian: "Boss, the visiting group of Luosi Civilization has arrived. Will I ask if you are attending the welcome dinner? ”

"The visit of the civilization of Luos? Welcome dinner? How many levels of civilization is this Luosi civilization, and when did it connect with our Earth Federation? Xiang Qian was stunned for a moment. He asked.

"Boss, the Luosi civilization is the third-level peak civilization discovered half a year ago, after half a year of communication between the Ministry of Foreign Affairs and them, it was determined that this is a civilization race with great development potential, and at the same time, this Luosi civilization is not a civilization race that left the Big Magellanic Galaxy, but a race that bought the galaxy and returned to the Milky Way since childhood, so the Ministry of Foreign Affairs wants to get information about the Magellanic Galaxy."

Xiang Qian was very speechless after hearing this, but since the Ministry of Foreign Affairs had already sent out invitations, he would not say anything more. In fact, in his opinion, a third-level peak civilization, even if it has great development potential, is not worthy of the Earth Federation's invitation to visit them.

However, Xiang Qian thought about it for a second time, and estimated that those people in the Ministry of Foreign Affairs had only exercised their power for the first time since their formation, and they had been playing soy sauce before. Now it's hard to wait for him to release power, so it's not a big deal to show his face.

With the current strength of the Earth Federation, the Ministry of Foreign Affairs is a bit embarrassed to do this, but the universe is so big that even if other civilized races know about it, they will think that this is the unique culture of the Earth Federation. It is estimated that after a while, the Ministry of Foreign Affairs should be able to adapt to the posture of the Earth Federation with a fourth-level civilization.

As for whether this Luosi civilization came back from the Small Magellanic system, it is not a matter of great importance to the Earth Federation.

Xiang Qian has long known that all the civilizations and races in the galaxy are divided into several parts, including the Large Magellanic Galaxy, the Canis Major Dwarf Galaxy, the Sagittarius Dwarf Elliptical Galaxy, the Ursus Minor Dwarf Galaxy, the Auriga Dwarf Galaxy, the Sextant Dwarf Galaxy, the Celestial Dwarf Galaxy, and the Leo I Dwarf Galaxy.

These galaxies all have a large number of civilized races, which may not be as numerous as those within the Big Magellanic Galaxy, but the internal competition and rule system of these galaxies are the same as those of the Big Magellanic Galaxy.

Although Xiang Qian, the son of the previous life, died not long after the human race returned to the galaxy, he still knew the news. After all, with the number of more than 200 billion living planets in the entire galaxy, hundreds of thousands of civilized races were born. It's just so normal.

"Sue the Ministry of Foreign Affairs, just say that I don't have time, just let them sort out the information they get and give me a copy." After Xiang Qian finished speaking, he didn't pay attention to these things.

"Okay. Boss. ”

Time passed slowly, and three years passed in a blink of an eye. In the past three years, the Earth Federation has been steadily developing between the three star systems, relying on abundant resources.

But you don't mess with others, but others will mess with you.

Especially now that all civilized races are racking their brains to climb technology, most civilized races do not have such a deep foundation as the Earth Federation, and with the scientific research strength of these civilized races, it is very difficult to research an engine with 300 times the speed of light.

Even if it is a fourth-level civilization, the strongest engine blueprint in the mind of the black technology controller. It's nothing more than a curvature engine at the speed of 100 light. As for the gravitational engine with a speed of 100 light, it simply cannot support navigation between river systems.

Because you don't have that much energy to support a gravitational channel between river systems, the only engine you can rely on for river navigation is the curvature engine, and the gravitational engine can only be used as auxiliary power at most.

But now, with the scientific research strength of the Earth Federation, there is no 100% guarantee that it can complete the curvature engine of 300 times the speed of light in a short period of time, let alone other civilized races.

So since they don't have that scientific research strength, the way these civilized races can think of is to plunder the scientific and technological data of other civilized races, or subdue multiple subsidiary races. Sets of multiple civilizations and races can leave to study the curvature engine.

The scientific and technological strength of the current Earth Federation is just in line with the plundering standards of certain civilized races. So unfortunately, the peaceful life in the Earth Federation was disrupted.

A huge fleet of more than 300 million warships is rapidly heading towards the Earth Federation. According to observations, the warships of this fleet are all standard, and they should be made by a civilized race.

However, the Earth Federation didn't take this fleet seriously at all, because the technology level of this fleet was the pinnacle of third-level civilization, so even if the number of warships in this fleet increased tenfold, it would not pose any threat to the Earth Federation.

While this fleet was frantically rushing towards the Earth Federation, the Earth Federation was also preparing for a major event, that is, the Mandi clan was preparing to be promoted to a fourth-level civilization.

After the Mandi joined the Earth Federation, they have been relatively low-key, since they overthrew the previous design of the flagship of the fourth-level civilization race. began to concentrate on the scientific and technological system of the Earth Federation.

Although the Mandi cannot become the dominant civilization of the Earth Federation, they are based on the heritage of the Evolver civilization. The Mandi also do not allow themselves to be a dispensable character. So after decades of research and analysis, according to the characteristics of their own Mandi civilization. Finally, a scientific and technological system that complements the scientific and technological system of the Earth Federation and has its own characteristics has been developed.

After returning to the galaxy, the Mandi race, which no longer worries about resources, also began the construction of the flagship of the fourth-level civilization race. After more than three years of construction, the fourth-level civilization race flagship of the Mandi tribe has finally been successfully built.

"Do you really decide? You must know that once you become a fourth-level civilization, then there is no turning back, and now there are many resources in the galaxy, and you still have the opportunity to choose. Xiang Qian looked at the fourth-level civilization race of the Mandi clan and said to Kaeya beside him.

"This is not my decision alone, it is the result of the vote of our entire Mandi clan. In fact, our Mandi tribe prefers to engage in scientific research quietly, and the previous civilization and racial strife were completely forced to helpless, but now with the Earth Federation as a support, we Mandi really don't want to live the kind of life before.

That's why we chose this path, as long as the Earth Federation doesn't dislike our Mandi race, which is a drag without much combat power in becoming a fourth-level civilized race. Kaeya looked at the fourth-level civilization race flagship belonging to the Mandi race in space, and said lightly.

"Okay, then I won't bother you to break through." Xiang Qian patted Kaeya on the shoulder and turned to leave, and after taking a dozen steps, he suddenly stopped and said, "You Mandi will always be a member of the Earth Federation. ”

"Thank you." Kaeya said with a smile.

When Xiang Qian left the Mandi home planet, Kaeya took all the people on the spaceship and entered the flagship of the fourth-level civilization race, preparing to break through the fourth-level civilization.

"The Mandi sacrifice a lot this time." After Xiang Qian returned to Earth, Condensation said to Xiang Gan.

"yes, I didn't expect the Mandi to be so resolute, in fact, I didn't care about the previous for a long time. After all, it's normal for civilized races to go to war and do everything, and if I did, I would do the same, they don't care at all.

In this way, I feel that I am cautious all the way, and I have completely forced the Mandi tribe to become an auxiliary civilization, and it is impossible to break away from the Earth Federation. Xiang Qian said helplessly,

"You're meant to be cautious." Condensation leaned against Xiang Qian's side and followed him to watch the Mandi civilization advance. (To be continued)