Since these two civilizations have only level 4 civilization and have not developed warp engines, their range of activity is basically limited to their own star system and the nearby 20 light-years, and generally does not exceed 20 light-years.

Therefore, due to the birth of two civilizations in this galaxy, and both civilizations have reached the fourth-level civilization, this leads to the fact that all the resources of this galaxy and nearby galaxies are not enough to make these two fourth-level civilizations become fifth-level civilizations, and it is precisely because of the lack of resources, coupled with the fact that there is no fifth-level civilization in the star fields near these two civilizations, so in order to compete for survival and living space, resources, energy, etc., the two civilizations broke out into war.

In this galaxy, there are countless space cities floating in the orbits of various stars, these space cities are of different sizes and shapes, some are like the ring space cities of early mankind, some are like huge wheels, some are simply boxy, and some are round, in short, there are space cities of various shapes.

Although there are a lot of various space cities in space, they are basically gathered near the planets in this star system, and there are very few other places, countless small aircraft are slowly shuttling between these space cities, and the maximum speed of all these aircraft will not exceed one percent of the speed of light, according to the judgment of the computer on the spacecraft, these small aircraft are basically using ionic engines, so the work efficiency of the engines is not high, and the personnel they use are still in the era of nuclear energy. According to various data, it can be confirmed that the two civilizations of this star system are in the initial stage of fourth-level civilization, which means that during this civilization period, these two civilizations cannot even go to nearby stars, after all, the closest star to this galaxy is also six light-years away.

That is to say, if these two civilizations want to go to the nearest star, then it will take at least 600 years to travel at the fastest speed of one hundredth of light with their civilization aircraft, so the range of activities of these two fourth-level civilizations is still only staying in their own star system, and they can't go further at all.

And according to the data of the probe, there were originally two life planets in this star system, or intelligent life planets, but that was only in the past, and now these two life planets are no longer inhabitable, or with the technological level of these two civilizations, if there is no intervention of higher civilizations, then these two life planets will be uninhabitable for a long time in the future.

According to the detection, the two living planets are full of all kinds of nuclear radiation, and there is a dead silence everywhere on the ground, and there are occasional traces of various strange and mutated biological activities.

Obviously, the war between the intelligent beings of these two living planets, under the long-term stalemate, both sides chose to start a nuclear war, so it directly led to the living planets of these two civilizations becoming like this, so both civilizations began to move from the ground to space.

Even until now, these two civilizations have not stopped the war between each other, judging from the picture of the detector, the war between these two civilizations is still going on, and it can even be judged that if there are not enough resources, then the war between the two civilizations will basically not end, unless one of them disappears between this world and the world.

However, it is obvious that it is impossible, after all, the two civilizations have the same background, the level of science and technology is about the same, the population is about the same, in this case, if there is no foreign civilization involved, the war between the two civilizations will continue until both civilizations disappear into the universe.

In the data fed back by the probe, the two fleets with disparity in strength are desperately chasing at this time, and even the spaceships between the two fleets are not very different, in fact, this is understandable, after all, these two fourth-level civilizations are so close to each other, if one side develops a certain technology, then it will not be long before the other side will definitely appear.

The ships between the two fleets are about the same size, and the weapons used are similar, and there are two main weapons, the first is an energy cannon that is very inefficient in the eyes of Zhang Weihua and them, and the other is the missile used by the Ming Empire in the 21st century.

And because of their level of technology, the distance between the two sides can only be fought within 300,000 kilometers, and once this distance is exceeded, all weapons are basically useless.

And these two civilizations are about the same size in this galaxy, so it is very difficult for the two civilizations to really distinguish between the winners and losers.

It is obvious that this is the ambush of another civilized fleet in this civilization's fleet, otherwise the strength would not be so different, you must know that at this time, there are only a few ships on the fleet side of the two sides, but there are more than a dozen ships on the other.

Judging from the picture just taken, one side first lured the other side to come to fight with them, and when the war between the two sides began, the other side killed from three directions, and surrounded the small number in the middle.

And on the less side, there is a spaceship that is very special and gorgeous, so Zhang Weihua guesses that there must be very important characters on this spaceship.

And in order to make that spaceship stand out of the encirclement, they can be described as very heroic, and paid a lot of price to make that spaceship stand out of the encirclement, before this they had five spaceships, but in order to make that gorgeous spaceship stand out of the encirclement, three of the spaceships were directly sunk by the other party.

And at this time, the battlefield of the two sides is not far from Zhang Weihua and them, only ten astronomical units, of course, such a long distance is already very far away for a fourth-level civilization, but for a fifth-level civilization, ten astronomical units are very close distances, it is simply close at hand, after all, the gap between the fourth-level early civilization and the fifth-level top civilization is too big.

However, even if it is a distance of ten astronomical units, it is very difficult for a fourth-level early civilization to discover Zhang Weihua's existence, not to mention that Zhang Weihua and they are hiding behind a huge asteroid at this time, so with the technological level of a fourth-level civilization, they can't be discovered at all.

It is precisely because of this that the less side does not know Zhang Weihua's existence, because the direction of their breakthrough is in the direction of Zhang Weihua's side, so after breaking through, they flew towards Zhang Weihua's side at full speed, and the spaceship behind saw that this gorgeous spaceship broke out, and immediately pursued with all their might, obviously they didn't want the duck to fly away.