The hundreds of kilometers long defense line from Yumen Pass to Yangguan was stationed with 10,000 dragoon guards, 100,000 Tang soldiers and millions of mercenaries.

In addition, the huge combat power of the mountain protection spirit guards composed of hundreds of Infinite Knights of the [Infinite Gate], 10,000 [2nd Order] Black Bone Regeneration Heroic Spirits, 100,000 [1st Order] White Bone Regeneration Heroic Spirits, and humanized animals.

It is equivalent to an average of tens of thousands of troops per kilometer, how can you think that the strength is far greater than the two or three hundred thousand Western Regions Zahu who invaded the Tang Dynasty, and it is enough to go out of the city and crush it flatly, where you still need to defend the city carefully?

But the problem is that the combat power ratio is not calculated in this way.

Because the most dangerous thing about the Western Regions Zahu is not their combat power, but the "blood poison" they are infected with.

Once injured by a Blood Slave, even if it is only a small and groundbreaking wound, you will become infected with this blood-borne virus and become a member of the Blood Slave.

Although the strength of the "blood slaves" in the form of ordinary outcasts is only comparable to that of the Tang Dynasty soldiers, their vitality is extremely tenacious.

In addition, they can rely on the blood mist emitted by the death of their own kind, so it is difficult to kill them unless they can be killed with one hit and have no chance of healing themselves.

This is something that ordinary mercenaries can't do, and there is a lack of armor that can defend against blood poison, so the Tang Army's seemingly huge millions of mercenaries cannot be directly put into the battlefield.

This is not to protect them, but that the mercenaries who die in battle will increase the number of blood slaves, and the gains outweigh the losses.

In this way, only the Dragoon Guards with the "Heavenly General Series" and the Datang Warriors with the "Heavenly Soldier Series" are left, which can be regarded as frontal combat power on the battlefield.

Even with the addition of the Regenerated Heroic Spirit Legion of the same size as the Tang Army, and the Mountain Guardian Spirit Guard, which is composed of humanized animals, the combat power is only on par with that of the Blood Slave.

With such a little combat power, there is more than enough to defend the city, and the attack is insufficient, and dying is a loss for Bai Yuqi, so he naturally does not dare to attack rashly.

At the same time, although it is roughly estimated that the size of the various ethnic groups invading from the direction of the Western Regions is only two or three hundred thousand, this is only the first ethnic group.

According to the news from the scouts, there are still clusters of blood slaves of different sizes in the rear that are migrating in the direction of Datang, and the number cannot be counted!

Bai Yuqi and the Tang monarchs who heard the news couldn't help but have a headache, has the Western world completely fallen?

This is not good news for Datang, because the troops currently concentrated in the defense line of Yumen Pass are almost already the soldiers and horses gathered by Datang with all the strength of the country.

Unlike these blood slaves, they may have been just a cowardly farmer or a folk woman before being infected by the virus, but after being infected as a blood slave, they have the strength to fight against the regular army of the Tang Dynasty.

It is conceivable that once the defense line of Yumen Pass cannot withstand the endless stream of blood slaves, and the slaves controlled by these blood poisons are driven straight into the Central Plains, then the Chinese civilization may have to face a doomsday-level disaster.

This situation made Bai Yuqi almost unable to resist making a move, using a few map-level destructive spells to weaken the scale of the blood slave to relieve the pressure on the Tang army.

But a new discovery made Bai Yuqi dispel this idea.

Because he found that under the pressure of this kind of national extinction, Datang broke out with an amazing force.

When they knew that once they couldn't hold the Jade Gate Pass, their hometowns and relatives behind them would be threatened by this kind of demons and demons, almost all the Tang people burst out with a strong belief that they would not retreat.

Even those mercenaries who are less powerful in combat would rather die vigorously in battle than take a step back, and shine with their own lives.

This has led to the overall combat strength of the Tang Army entering a stage of rapid improvement.

Not only did the dragoons, led by the members of the Wuji Knights, break through the [2nd Order] one after another in the high-intensity battles, but even the 100,000 Tang Dynasty soldiers also broke through the [1st Order].

The most amazing thing is that those mercenaries, who are far inferior to the regular army in terms of equipment, skills and resources, have also shown their combat effectiveness that is not inferior to the main force of the Tang Army, and a large number of amazing elite soldiers have emerged.

This made Bai Yuqi, who had always been like a nanny and carefully sheltered them, couldn't help but think thoughtfully.

In order to cultivate the source of faith, they are reluctant to let any Tang people die from overprotection, isn't it an obstacle that restricts their growth?

Bai Yuqi, who figured this out, decisively let go to see how far they could go.

But Bai Yuqi, who no longer interfered in the battle, did not let go because of this, but turned his energy to providing logistics for the Tang army.

Yingzhou's construction and intelligent machinery factory is running at full capacity, making every effort to produce all kinds of weapons and equipment and supply consumables for the Tang Army.

At the same time, in the two major systems of the Xuanxiao faction and the mercenary guild, the exchange authority of various exercises such as "Body Forging Technique", "Qi Alchemy Technique", and "Battle Qi Technique" has been opened, allowing mercenaries who meet the conditions to rely on the exchange of combat merits to learn.

In addition, the "Heavenly Dao System" is no longer limited to the disciples of the [Wujimen] system, but has opened up "LAN partitions" with different permissions, and after including everyone, the employment function of the career template is opened to them!

The most important thing is that Bai Yuqi unsealed his deity vest that had been "retreated" for a long time, and let the "Wuji Emperor" ride a "jade-colored divine dragon" to the battlefield of Yumen Pass.

While injecting a boost into the Tang Army, he also announced that he would recruit the souls of the heroes who died in battle to join the "Shaowei Tian Zodiac Levy Vientiane Tianque Four Palaces and Twenty-eight Guards" under his command.

And waved his hand in front of the Jade Gate Pass to build a pyramid-like towering altar, and personally held a summoning ceremony in front of everyone, resurrecting the Tang Army soldiers and mercenaries who had died in the battle on the spot!

This miracle directly detonated a frenzy of faith from the Tang Dynasty monarchs and ministers to the Tang soldiers, and almost didn't catch Bai Yuqi off guard and promoted him again!

The miracle of "Heroic Soul Revival" seems miraculous, but in fact, the "Heavenly and Human Spirits" possessed by the war dead after their recovery are nothing more than the "subconscious projection clones" cultivated by Bai Yuqi with "Native Tai Sui Spores" and "Primordial Planarian Cells".

That is, the clone embryo is first cultivated with planarian spores, and then a spinal cord cell from the remains of the war dead is injected into it, and the final cultivation is completed to make it grow into the original appearance of the war dead.

The technology used in it has long been a ready-made technology under the concentrated research of Bai Yuqi's white vortex incarnation and the black vortex incarnation of the system "Tai Sui Vortex".

The only thing with some technical content is the soul spell that Tai Sui Vortex researched after returning to Yingzhou: [Summoning the Revenant]