The Blood River Fortress is located in the middle of the northern theater of the Human and Demon Battlefield.

The surrounding mountains are continuous, the earth veins are majestic, and the mountains on both sides form a huge slow-moving V-shape.

And the Blood River Fortress is at the very bottom of this V-shape.

In the surrounding mountains, a large river runs through it.

At the earliest, this big river was originally called the Wailing Dragon River, because its water rushed and moved in the mountain stream, faintly crying, and the river veins were long, so it was called the Wailing Dragon River.

However, 10,000 years ago, there was a big melee here, and the troops invested by the humans and demons here exceeded 10 million, and not half of them left alive in the end.

Since then, the clear water of the Wailong River has taken on a trace of blood, especially at night, without the light of the sun, it is directly like a river of blood.

Gradually, it became known as the river of blood.

Since the great battle 10,000 years ago, the Wailong River Military Fort, which could only garrison 50,000 troops here, has been upgraded and expanded into a Blood River Fortress that can accommodate 300,000 soldiers, which has continued to this day.

The entire garrison area of the Blood River Fortress has a defense line of 400,000 li from north to south and a depth of 100,000 li from east to west, with four small military fortresses, 16 military strongholds, and more than 100 beacon towers.

And these four small military fortresses need a minimum of 10,000 garrisons, each military stronghold needs at least 1,000 garrisons, and each Fenghuotai garrison is equipped with two squads with a total of 100 people.

In other words, at least nearly 70,000 people will be dispatched to the military buildings under its jurisdiction.

According to the 120,000 troops, the number of troops in Ye Zhen's hands is only 50,000 left behind in the fortress, and this strength is very tense.

Even if Ye Zhen's current army of 220,000 is calculated, excluding the reserve army of 20,000, the 200,000 army will be divided into at least 70,000, and there will be 130,000 troops who have left the Blood River Fortress.

If there is a situation, the military is also very tight.

The upper limit of 300,000 soldiers in the Blood River Fortress is not unreasonable.

However, there is more to the composition of a fortress's garrison than that.

And the slave of sin!

The territory of the Great Zhou Dynasty is extremely vast, and there are countless people who are used as criminal slaves by the family for various crimes every year.

The laws of the Great Zhou Dynasty are quite strict in some aspects, and there is even a situation where all the people of a feudal country are used as slaves.

For some clan crimes, in addition to the main line, other clansmen from other side lines will be all assigned to the battlefield of humans and demons as criminal slaves.

Those who were relegated to the rank of slave to sin were sent to different places in the various war zones according to their circumstances.

For example, a woman of acceptable age will be used as a camp prostitute, and if she looks good and has a little luck, she may be protected by some middle and high-ranking generals, and she will wait for him alone, and how long she can wait depends on her luck.

As for men, anyone who has a little cultivation will be used as a front-line death squad, which is the so-called cannon fodder.

There is a little hope that as long as there is a chance to kill the demons, you will be able to get rid of the identity of a sin slave.

If you behead the first level, you can be issued with the same equipment and weapons as the regular army, and if you decapitate the third level, you can leave the death squad and be assigned to a death camp like the regular army.

Beheading the ninth level, you can completely wash away the crime, get rid of the status of a criminal slave, and you can choose to continue to serve in the border army, or you can choose to return to the original hometown of the Great Zhou and become an ordinary person.

Depending on the level of each military unit, the number of slaves assigned to it is also different.

And after holding the seal of the Metropolitan Governor's Mansion on the Human and Demon Battlefield, and rushing with the army day and night for a month and a half, Ye Zhen's department finally arrived at the Blood River Fortress.

The garrison army of the Blood River Fortress at this time was a second-class White Frost Marquis, and his title was much higher than Ye Zhen's.

When the two dignitaries under their command were handing over the military orders, Ye Zhen had a brief conversation with the white frost marquis.

This White Frost Marquis has been stationed in the human and demon battlefield for nearly eleven years, and today when Ye Zhen came to change the guard, it can be said that he was extremely happy.

However, in the happy expression, it is still difficult to hide the thick tiredness.

"Our Blood River Fortress, although the location is not too important, and because of its depth, it is not the main target of the demons, but the small-scale harassment has not stopped.

When Ben Hou came, he brought 360,000 troops, and now, only 230,000 can go back with Ben Hou, a full 130,000 brothers....... Please!"

Bai Shuanghou silently raised the two glasses of wine in front of him, first spilled one of the glasses of water and wine, and then drank the other cup with his neck up, and in the corner of his eye, a tear flowed silently, flowing in the furrow and ravine in the scar in the corner of his eye.

This scene, looking at Ye Zhen, was moved.

The army of the White Frost Marquis may not have any outstanding achievements, but this kind of silent perseverance and sacrifice is the most admirable.

"Please!"

Ye Zhen also sprinkled a cup of water on the earth first, and then drank another glass of water and wine.

"Especially those beacon towers and military strongholds, we should send more troops and be more careful. In fact, in terms of the geographical location of the Blood River Fortress, the Blood River Fortress itself and the garrisons of those military fortresses are not much dangerous.

The danger is the military strongholds and beacons stationed in a relatively small number of people. Bai Shuanghou said to Ye Zhen casually.

"Military strongholds and beacons?" Ye Zhen was a little puzzled, "The demons only attack beacons and military strongholds, does such a small-scale harassment attack work?"

"Basically not!"

"Then why did they do that?"

The White Frost Marquis's expression was a little pathetic, "Food, instinct, military merit, wealth, slaves, or just for killing!"

This sentence made Ye Zhen's expression suddenly succumb.

Gradually, the nature of the demon clan, as if it was unsealed, exploded in Ye Zhen's heart in an instant.

Over the years, most of the demons that Ye Zhen has encountered are nobles or royals in the demon clan, and when he fights with them, Ye Zhen subconsciously treats them as human races.

It wasn't until Bai Shuanghou's words that Ye Zhen remembered the nature of the demon clan, with the true memories that Princess Changle saw when she wandered in the demon territory.

In the eyes of the human race, all the demons, it is food, wealth, and military merit.

The lower the level of the demons, the higher the preference.

It is to treat the Terrans as food.

According to the saying in the demon race, the flesh and blood of the human race is the most delicious food in the world and contains the most spirituality.

In addition to cultivation, cannibalism can make their cultivation improve rapidly, and even their intelligence can be transformed.

This is different from the demon clan.

The demon clan eats people, it is useless to eat those ordinary human races, only by eating the flesh and blood of those human races who have cultivated to be powerful, can they improve their cultivation.

However, the demon race is different, even if the cultivation is low, so that they can't improve their cultivation much, but they can still enlighten their spiritual intelligence.

This alone is destined to the value of the human race to the demon race.

That's why there are endless attacks and wars of the demons.

There are even historians of the Great Zhou Dynasty who commented that the invasion war of the demon race from the beginning of the invasion of visitors from the heavens when the world changed drastically, the subsequent war between humans and demons was actually a battle for food.

"And, actually, there are some beacons, you can completely do not garrison troops, in this way, you can avoid large casualties.

Half of the brothers killed in battle under Ben Hou were brothers stationed in the beacon tower.

If Ben Hou had dared to do this a few years earlier, the casualties could have been reduced by at least one-third. Bai Shuanghou gave Ye Zhen another suggestion.

"Thank you!" Ye Zhen nodded noncommittally.

"Okay, this side has also been handed over, Ben Hou will lead the army to withdraw, eleven years, Ben Hou should also rest and rest!"

As soon as he gave his hand, the White Frost Marquis got up, and with an order, the 160,000 troops stationed in the Blood River Fortress left the city one after another, and Ye Zhen's Beihai Tianlang Army entered the city one after another to take over the city defense.

However, the handover is not that simple.

There are also surrounding military fortresses, military strongholds, and beacon towers, all of which need to be carried out separately one by one.

This handover lasted for half a month before it was completely completed.

Ye Zhen's Beihai Tianlang Army can be regarded as completely taking over the entire Blood River Fortress defense line, and it can be regarded as officially starting to assist in the defense of the battlefield of human demons.

Bai Shuanghou's suggestion sounded good, but Ye Zhen didn't dare to completely abandon the early warning of the beacon.

It's not that Ye Zhen isn't bold enough, but that, at this moment, there are too many people staring at Ye Zhen.

If Ye Zhen dares to make a mistake, someone will immediately come to find trouble.

Giving up part of the beacon's early warning is an internal affair for others, and for Ye Zhen, it may be a big trouble.

However, for now, Ye Zhen has another big thing to do.

Sin Slave!

Management of the entire Blood River Fortress Sin Slaves.

"My lord, in the entire Blood River Fortress, our army has received a total of more than 48,000 criminal slaves, including more than 8,000 men and miscellaneous prostitutes, 34,000 criminal slave camps, and 6,000 death camps with strong combat effectiveness.

Before this, these criminal slaves were scattered in the Blood River Fortress and the four major army forts, and now, according to your orders, they have all been concentrated in the Blood River Fortress, just waiting for you to show them. Liu Feng said.

As soon as his figure turned, Ye Zhen took Liu Feng to appear in the sky above the school field where 48,000 sin slaves were concentrated.

"First of all, from today onwards, all men will not be slaves, and all men must be filled by my Beihai Tianlang Army. The former slaves and men were all served as hard laborers. Ye Zhen gave the first order.

With a wave of Liu Feng's hand, a group of military judges belonging to the Beihai Tianlang Army rushed out, stripped thousands of criminal slaves off their uniforms, and drove them to the crowd of hard laborers.

Standing high in the air, Ye Zhen looked at the sin slave mark on his forehead, this sin slave brand was the sin slave mark of the ancestral god temple's secret refinement, containing countless vicious prohibitions.

As long as it is stamped once, even in the innate soul, the same sin slave mark will appear, and as long as you escape, the ancestral temple has a secret method to search for its traces, and it can even urge its secret method, within a realm, so that it will die instantly!

However, no matter how powerful this sin slave mark is, it is dead, and man is alive!

With a cold voice, Ye Zhen brazenly ordered, "Pass the order, and all the sin slaves will be stamped with the sin slave mark of the Barbarian Spirit Hall again!"

As soon as these words came out, among the more than 40,000 sin slaves who were still waiting quietly, they immediately boiled!