It is precisely because the population is thin and the number is scarce that the ancient civilization can do few things at the same time, and the number of power groups that the ancient civilization can control within the three cosmic-level civilizations is seriously insufficient.

It is also because of the limited human resources of the ancient civilization, the control of many chess pieces is seriously insufficient, and it is difficult to strictly monitor the every move of these chess pieces, so that many chess pieces can have no fear to the ancient civilization, and even cooperate with the ancient civilization on the surface, but behind the scenes, they leak the secrets of the ancient civilization, resulting in the collapse of many ancient civilizations.

It can be said that many problems and many difficulties of ancient civilization lie in the serious shortage of the number of civilized citizens in the final analysis, which cannot meet the needs of ancient civilization!

Compared with the huge population of those cosmic-level civilizations, the population of the ancient civilizations has been less than 10 billion so far, and that is just a drop in the ocean, no matter how hard the soul body of the ancient civilization is, even if it is dedicated to controlling those useful cosmic-level civilization citizens as pawns, the results that can be made in the end are always limited.

Even compared to many weak planetary civilizations, ancient civilizations did not have an advantage in terms of population, and this strength shortcoming was too obvious.

The reason why the ancient civilization was able to control the immigrant star field was also because the ancient civilization was strong and without a trace, and the civilization of the immigrant star field could not understand the existence of the soul body of the ancient civilization, and it was in the powerful lethality of the ancient civilization, so it was finally firmly controlled by the ancient civilization in the palm of its hand.

However, with the advent of the soul body detection equipment of the earth's civilization, after unveiling the veil of the ancient civilization, it finally changed, and the immigrant star field finally broke away from the control of the ancient civilization.

This is still the case in the immigrant star field, and now the ancient civilization is even more in danger within the three cosmic-level civilizations, and even the soul bodies of the ancient civilizations dare not kill at will, so as to deter those chess pieces controlled by them to the greatest extent, so that the difficulty of the ancient civilizations to carry out their work is naturally much greater, and the shortcomings of the limited population of the ancient civilizations are undoubtedly revealed!

For the crux of the problem of today's ancient civilization, the ancient civilization itself is not unaware, but it is too difficult to solve this problem.

In fact, in order to solve its own population problem, the ancient civilization also tried many methods, trying to greatly increase its own population, but the population of the ancient civilization is very difficult to reproduce, and the new generation of ancient civilization soul body is a powerful enough ancient civilization spirit body after spending a lot of origin power to split itself.

And every time the autologous division is carried out, giving birth to a new ancient civilization soul body is a huge burden for the mother, and the cultivation for decades will not be able to slow down, and even after a few more splits, the strength of those mothers will be significantly reduced, and this alone has hindered the possibility of the ancient civilization wanting to expand its own population size.

The remnants of the older generation of the ancient civilization made great sacrifices when they returned to the material world, and a large number of new generation souls were split, and finally the current population size of the ancient civilization was formed.

And even those oldest soulbodies of the new generation of ancient civilizations have only just reached the threshold of self-division to give birth to new soulbodies of ancient civilizations, and the cost of splitting is much more serious, and it will not be able to slow down for hundreds of years after completing a split, and it is impossible to reproduce in large quantities.

The largest of these new generations of ancient civilization soul bodies has only been born for more than a thousand years, even if they have sufficient soul resources in the material world to feed, so that they can grow much faster than the remnants of the older generation of ancient civilizations who were struggling in the world of another dimension, but after all, the gap in the background is still huge, and the cost of splitting is much more serious.

It can be said that if you want to meet the requirements of the ancient civilization to reproduce the next generation of individuals, this is extremely strict for the ancient civilization soul body in terms of strength, the requirements are very high, and if you want to rely on the ancient civilization soul body itself to slowly reproduce and grow the race, even if the population size is doubled, it is conservatively estimated that it will take hundreds of years, and this efficiency is really too slow compared to other civilizations.

And after trying their best, there is really no way to cultivate the ancient civilization's own citizens on a large scale and quickly, so as a last resort, the ancient civilization had to put the key to solving the problem in other directions, after many thoughts and attempts, the ancient civilization gradually put the direction of solving the problem on the way of cultivating the servant mercenary group.

Some high-level leaders of ancient civilizations have been doing related soul experiments for a long time, trying to cultivate more reliable and useful servant and mercenary groups, so that they can better serve ancient civilizations and improve the overall strength of ancient civilizations.

The leaders of these ancient civilizations believed that this was the only way to solve the current predicament of the ancient civilizations, and that other methods either had limitations or could not play a fundamental role.

After all, the ancient civilization itself had its own unique innate advantages in cultivating servant mercenary groups, and there was no reason not to carry out in-depth research and attempts in this regard.

The army of infected souls under the command of the ancient civilization can be described as a strategic resource of the ancient civilization, as long as the virus is released, the infection is a large area, which can not only kill the individuals of the hostile civilization on a large scale, but also collect the soul resources required by the ancient civilization, and finally these infected soul bodies can also be used as cannon fodder to fight for the ancient civilization, which can be described as killing multiple birds with one stone, and the ancient civilization can be said to have tried and tested this repeatedly.

The difficulty of obtaining the Infected Soul Body Servant Legion is too low, and the cost is very low, which is one of the innate specialties of the ancient civilization, and it is one of the most prominent characteristics of the ancient civilization compared to other civilizations.

Considering that the reproduction of the soul body of the ancient civilization itself is too difficult, the high-level of the ancient civilization has long wanted to make a certain breakthrough in the servant mercenary group and solve the problem of the lack of manpower of the ancient civilization itself.

It's just that those infected souls are good at everything, and the only problem is that after these infected souls are infected and transformed, they will completely lose their wisdom and emotions, and they will be manipulated by the souls of ancient civilizations like puppet robots, and they can only move when they push, without their own wisdom, and they have no ability to do things independently, which is the biggest limitation of the infected souls, which seriously restricts the practicality and strategic value of the infected souls.

In the past, the ancient civilization thought that this was a great advantage, after all, it was also a trouble if the wisdom of the subordinates was too sufficient, and it was not easy to be dominated if they had feelings and reason.

In particular, these infected soul bodies themselves are the result of the ancient civilization slaughtering the enemy, and it would be too embarrassing if these infected soul bodies directly retained their original wisdom and memories, and the ancient civilizations did not know if these infected armies would directly riot and follow the ancient civilizations to the end!

Although the souls of the ancient civilization have a strong ability to control the soul virus, and the soul virus is the core of these infected souls after they are transformed, theoretically speaking, even if these infected souls still retain the wisdom and memory of crude oil, they will still surrender to the souls of the ancient civilization under the instinct of instinct, but after all, no one has ever seen this kind of thing, and it is difficult for anyone to say whether it will really be like this.

Therefore, the souls of the ancient civilization were very glad that these infected souls had destroyed their minds, otherwise, if these infected armies were really mutinied, the ancient civilizations really didn't know what to do, so that a strategic talent of the ancient civilization could be said to be directly abolished.

But now the situation is different, the main style of the ancient civilization has also changed, and the large-scale army of infected souls within the three cosmic-level civilizations has become more and more unsuitable for the situation.

For the three cosmic-level civilizations with a certain amount of soul body detection ability, sometimes too large a large number of infected soul bodies is a target, and it is likely that one accidentally leaks the Xingzang and exposes the target, causing trouble that the ancient civilization does not want to see.

In particular, although these infected souls generally have no wisdom and feelings, but after the scale is large, there are still some "mutant varieties" in them, and the infected souls of these mutated varieties do not have too high intelligence, but compared with ordinary infected souls, they obviously have a certain IQ and some of their own **, which often creates some unexpected accidents for the souls of ancient civilizations, so that the souls of ancient civilizations can be said to be unguardable.

The souls of the ancient civilizations are now begging for a living within the three cosmic-level civilizations, and their actions are more low-key and self-controlled, and they easily dare not do things within the three cosmic-level civilizations, even if it is to harvest the souls of a few cosmic-level civilization citizens for breakfast.

Therefore, for the sake of their own food supply, even if it is to take a certain risk, the soul bodies of the ancient civilizations will store a certain number of infected soul bodies in their hiding nests as daily food consumption.

To be honest, this kind of reserve grain similar to old bacon is really not a delicious delicacy for the souls of the ancient civilizations, but there is no way to be different from the past, the souls of the ancient civilizations are now downtrodden, and they have become completely lost dogs, not to mention that there is no place at all, but there are still quite a lot of problems in food supply after all.

After the reorganization of the internal system, the ancient civilization always obtained a certain amount of soul resources, and those ancient civilization soul bodies responsible for logistics were able to send a sufficient number of infected people to the hands of the infiltrators on the front line on time and in quantity, which was already quite commendable, as for the quality of freshness, good taste or something, the requirements were really too high.

Some ancient civilization soul bodies with a bit of tricky taste and can't tolerate roughage feeding, when they are really gluttonous and can't stand it, they can still sneak up on some cosmic-level civilization citizens who are sick and dying, or who have just died, and harvest their souls to fight tooth sacrifices.

But now that they have basically been reduced to fodder, rather than the infected souls that are being seen as cannon fodder, they have no chance of fighting tooth sacrifices at all. Not to mention the tooth sacrifice, there is no basic food supply!

You know, these infected souls are not perpetual motion machines, although they have lost their original memories and feelings, and have become walking corpse-like beings, they also have basic food needs.

It's nothing if you're hungry for a day or two, but if you're hungry for a long time, these infected souls will have all kinds of problems.

It is very likely that they will become listless, and even the structure of the soul body will disintegrate, and eventually starve to death.

Although the infected soul bodies have no wisdom, memories, and emotions, they are the souls of intelligent beings after all, and the instinct to survive still exists.

After a long time, if there is no soul resource to support them, these infected souls can kill most of them by themselves.

It's just that the soul bodies of the ancient civilizations can't even take care of themselves, and they have to use these infected soul bodies to satisfy their hunger and use them as life-saving dry food, where are the soul resource reserves to feed them?

The attitude of those ancient civilization soul bodies is to let them do as they please, and they are extremely hungry, regardless of whether they kill each other or dissipate on their own, it doesn't matter, as long as these infected soul bodies stay in the nest honestly and don't come out to cause trouble. At most, when a batch of infected souls is almost consumed, they will apply to their superiors for another batch of food supplies.

Although the ancient civilization is still not rich and wealthy, the ancient civilization can always supply cheap food such as the infected soul body, which is cheap and cheap, and the ancient civilization can still supply it sufficiently.

After all, the population of the ancient civilization is now limited, and the corresponding pressure on logistics is not great, and the ancient civilization still points to these front-line infiltrators to expand the territory of the ancient civilization, and it is easy not to starve these front-line soldiers.

In particular, the soul bodies of the ancient civilizations have not received any strict training, and they are used to being free and casual, if the logistics are not able to supply the front-line personnel with the soul resources they should have according to the quality and quantity, if they are not good, these front-line infiltrators will make some mess and cause some big trouble!