Zhu Lei didn't pay much attention to the transaction between the Ming Empire and Vena this time, after all, as the Ming Empire gradually moves towards the big stage of the galaxy in the future, the contact between various civilizations and the Ming Empire will be more frequent, and there will be more cosmic merchants to trade with the Ming Empire in the future, and now that the Ming Empire has implemented the credibility trade system, then as long as it is implemented in accordance with this procedure in the future.

And the goods purchased for that are basically from the Qinglong Star, after all, at this time, the native solar system of the Ming Empire is very resource-hungry for immigration, and it is impossible to have time to have extra resources to introduce various spaceships and weapons and industrial products.

What's more, Zhu Lei is still in the Ocean of Light Star Domain at this time, although the Ming Empire has occupied this place for hundreds of years, and the population of the Ming Empire here is already very large, but compared to the entire Ocean of Light, the population of the human race is still very rare, even if it is added to the subsidiary civilizations under the banner of human civilization.

But today, it is the day when Zhu Lei is about to return to the solar system, and for hundreds of years, Zhu Lei and the first batch of soldiers who came here have missed their hometown and relatives very much.

However, since the Ming Empire occupied here, there was no defense force before, so they could only stay here, and now their task has finally been completed, and the defensive fleet dispatched from the Ming Empire will take over their task of defending the Ocean of Light, so Zhu Lei and they can return to the solar system.

You must know that most of these people who came with Zhu Lai were his escort fleet, that is, his private fleet, so if Zhu Lei goes back, these people must go back with someone, after all, as Zhu Lei's escort team, there is no quota for their family members in this immigration list, so they are not within the scope of immigration.

In any case, although the Ming Empire occupies the Ocean of Light, the economic and industrial focus of the Ming Empire will be shifted to the Ocean of Light in the future, but the solar system will still exist as the political center of the Ming Empire.

It was not only Zhu Lei who went back this time, after all, although they only had three mothership-level spaceships when they came, and these three mothership-level spaceships were relatively small compared to the current spaceships.

After all, the largest spaceship at that time was only less than 150 kilometers long, and now the largest spaceships in the Ming Empire have reached four or five hundred kilometers.

Therefore, the spaceship that Zhu Lei and the others used to go back this time is no longer the three spaceships they were waiting for, especially Zhu Lei's own flagship.

In addition to these three mothership-level spaceships, Zhu Lei also brought tens of thousands of mothership-level military transport ships with them when they went back this time.

After all, as the central galaxy of the Ming Empire and the political center of the Ming Empire, the solar system is the root of the Ming Empire and the face of the Ming Empire, so the construction of the solar system is the top priority.

However, since human beings entered space, they have basically used the resources in the solar system in the previous thousand years, and the solar system itself is a galaxy with scarce resources, after all, it is impossible to have such abundant resources in the barren star field.

So this has led to the increasingly serious consumption of resources in the solar system, and now the entire solar system, including the periphery of the solar system, can hardly find any shadow of the minerals, even the larger meteorites can not be found, and now the entire solar system if you want to mine all kinds of minerals, then you must go to other galaxies a few light years away to mine.

That's why they brought so many kinds of ores back to the solar system when they went back this time.

But even if this is the case, it is just a drop in the bucket, so the industrial center of gravity of the Ming Empire will gradually shift from the solar system to the ocean of light.

After all, compared to the Ocean of Light, it is more suitable as an industrial star, and the various resources here are very rich, enough for the Ming Empire to squander.

So Zhu Lei and the others went back this time, and they carried a lot of various resources.

Although due to the progress of science and technology, the speed of the spaceship of the Ming Empire has been from several times the speed of light to more than 20 times the speed of light, but the time required to reach the solar system is still quite long.

After all, the Ocean of Light is more than 300 light-years away from the solar system where the Ming Empire is central, but even so, if you look at it in the entire galaxy and the entire universe, the solar system and the Ocean of Light are close at hand, but even so, it will take more than ten years to reach the solar system.

Zhu Lei's fleet flew all the way towards the solar system, and they didn't stop at all on the way, even if they passed by the Kara Galaxy, where the second-level subordinate civilization of mankind is located, they didn't stop, but went directly to the solar system, and finally an ordinary star system in the universe appeared in the eyes of everyone in the fleet.

At this moment, everyone's eyes were full of tears, including Zhu Lei, you must know that they have never seen the solar system with their own eyes for hundreds of years after they went out of the solar system, and they really have a little feeling of leaving home and returning home.

As the fleet gradually approached the solar system, all the spaceships were out of the warp flight state, at this time the fleet has reached the periphery of the solar system, that is, the former Kuiper Belt location, but at this time it is already very empty, all the asteroids and meteorites have become various industrial raw materials or materials for the manufacture of planets in the Ming Empire.

However, although it is very empty here, it is not nothing, this side used to be a place of all kinds of meteorites and asteroids, and now the Ming Empire has built a huge space port here, after all, the solar system is the center of the Ming Empire, so the direct contact with the various galaxies controlled by humans is very frequent, at this time Zhu Lei They also noticed that the Ming Empire in order to support the immigration of the Ocean of Light, the Ming Empire has exhausted its resources, after all, before Zhu Lei and they set off, the Kuiper Belt was not as empty as it is now, But now, all but one of the cosmic ports has disappeared from all the asteroids and meteorites.

Even Zhu Lei, they couldn't see a single spaceship larger than 100 kilometers in the entire port, and these 100-kilometer spaceships were still ready to be used as migrant ships.

But fortunately, due to the occupation of the surrounding galaxies by the Ming Empire, the supply of resources in the solar system is very tight, but it can still be persevered, but this is also a limit, you must know that the resources of the solar system and the surrounding galaxies are too poor after all.

To tell the truth, if the Ming Empire hadn't discovered the Ocean of Light and tried its best to turn the Ocean of Light into the territory of the Ming Empire at the first time, maybe the civilization limit of the Ming Empire might only be able to stay at the fifth-level civilization, and it would be basically impossible to go further, after all, the improvement of the civilization level will consume more resources.