The so-called bunker refers to the use of rocks, cement, civil engineering and other materials to build some fortifications that can not only protect themselves, but also attack the enemy through the firing slots on them.

These equipment can not only reduce the lethality and damage of the enemy's firepower to one's personnel and equipment, but also improve the combat effectiveness of one's personnel and equipment.

Bunkers are generally used for defensive operations. The use of bunkers for ground defense operations is the traditional way of ground warfare.

But when it comes to fighting demons, cover loses its value, both because of its incredible speed and because many of the demons' ranged attacks can be turned.

That's why, in front of the gates of the Holy Flame City, there is an endless plain without any cover. The Flame Legion had plenty of time to prepare, but it didn't build any bunkers.

Although demons only have the instinct to kill, they are very sensitive to attacks and can accurately determine the location of their attackers. Therefore, it makes little sense to send soldiers below the rank of the Spiritual Source Origin to the battlefield, and they are easily injured by friendly forces.

Therefore, the tactic that Ling Yuejun came up with in a hurry is to use the bombardment of aircraft to suppress the evil spirits, and the tanks will be deployed into battle formations from the marching room, and with the support of ground and air fire, the evil ghosts will be attacked from a long distance.

But Ling Yuejun actually knew very well in his heart that although tanks, artillery, and planes were strong, they were still very vulnerable in front of high-level originators. In the face of so many demons, there are so many that it is very difficult to win, so you can only delay as much time as possible, praying for the arrival of reinforcements that you don't know exist.

Therefore, the tanks retreated in the direction of the city gate while firing their guns, and they couldn't do it if they didn't retreat, because the tanks were as fragile as paper paste in front of the demons. It is necessary to keep a sufficient distance from the demons, and slowly retreat back to the city while inflicting a devastating blow on the demons, which is the best way to reduce the damage.

According to Ling Yuejun's assumption, when all the tanks returned to the city, the demon side should have suffered heavy casualties, and then using the defensive facilities of the city wall, it should be able to hold for a long time, he hopes to reduce casualties as much as possible, especially the originator in the legion, he will be very sad if he dies a person.

When it is really impossible to hold on, if the reinforcements have not yet arrived, they can only go out and fight to the death with the demon army regardless of casualties.

His order was to slowly retreat back to the city while the tanks were constantly suppressed, and if they were withdrawn too quickly, it would not be long before the demon army would come to the city, and the situation would become critical.

Originally, he thought that although the retreat speed of the tank was very slow, under the suppression of firepower, it should still be able to keep a certain distance from the demon army, and there should not be a few demons that could rush in front of the tank, at most some long-range attacks could attack the tank.

But he didn't expect that under the suppression of such firepower, those evil ghosts would still be able to catch up with the tanks, and seeing one tank after another destroyed, Ling Yuejun's heart was dripping blood.

The number of demons is simply too large, and the average strength is extremely strong, far from being comparable to ordinary originators.

The influence of the high-level originator on the battle situation is decisive, the high-level originator is not afraid of tanks, planes, artillery, just because the number of high-level originators is too small, as precious as a giant panda, how fast to build a tank and airplane, however, it takes many, many years to cultivate a high-level originator, and it takes a lot of resources, and it may not be able to cultivate, countless geniuses, but before they have time to shine, they died.

Another very important point is that the high-level originators are regarded as treasures by all countries, they eat and drink well, and they are in high positions, so they are naturally afraid of death and do not want to go to the battlefield, and countries have to respect their will, do not want to offend them, and generally cannot force them.

Compared with the Star Source Initiator, the Holy Source Founder has more hole cards, but is more willing to go to the battlefield, and the Holy Source Founder alone is an army.

However, on the entire Kadri planet, the total number of Saint Source Originators is only about a hundred, and when it is divided among various countries and major forces, there are very few Saint Source Originators owned by a single country.

For countries, the Holy Source is a weapon of strategic deterrence, equivalent to a top-of-the-line nuclear weapon, and it can be reused.

Therefore, especially for some relatively weak countries, they do not want their Holy Source Originator to go to war, in case of sacrifice, this loss is difficult to bear.

This is why modern warfare is a high-tech war, and the competition is the scientific and technological strength of countries.

However, when fighting against evil ghosts, it is equivalent to facing hundreds or thousands of strong people of the Spirit Source Origin Rank at the same time, there are a large number of them, and now that the electromagnetic interference is so serious, the strength of the Holy Fire Legion has been greatly weakened, and this is why it has fallen into decline all of a sudden.

The demons are rushing forward almost desperately, stepping on the corpses of their comrades and continuing on, and this kind of enemy who is not afraid of death is often the most terrifying.

The demons nimbly dodged the tanks' attacks again and again, and at the same time jumped and dodged, easily dodging the attacks of the artillery on the city walls.

A demon clenched his left fist, and suddenly became larger, like a hammer, directly smashing a Destiny all-electric tank.

The demons who rushed to the front were killed by artillery fire, and the demons behind did not hesitate to step over the corpses of their fallen companions in front of them and continue to push forward.

No matter how invincible the cannon fire overhead, no matter how many of their comrades fell on the way, they were still like an unstoppable steel shield wall, mighty and unstoppable towards the wall.

An evil ghost jumped into the air violently, but it was directly shattered by a bullet with strong explosive power from the direction of the city wall, and blood splattered immediately!

Beside him, ten demons suddenly stood side by side, and with a big mouth, black light erupted and shot straight into the tank group!

Tank after tank was attacked, exploded, suffered heavy damage!

Seeing this, there was a commotion on the city wall.

"Don't they feel pain?" said one soldier in horror.

"Completely ignoring one's own life and death, rushing forward desperately, how can such a lifeless enemy win?!" another soldier said in alarm.

Ling Yuejun, who felt the low morale of the soldiers, frowned.

At this moment, in order to save the tanks that were in danger below, the two Haitao helicopter gunships almost swooped down against the demon army, the fuselage shook violently, and one after another Haitao anti-tank missiles were launched, and the demon army was immediately drowned in a sea of fire!

"It's not good to underestimate our evil ghosts too much!" A black figure suddenly leaped out of the army of evil ghosts, and actually spoke, his ten fingernails grew thirty centimeters at a speed visible to the naked eye, becoming extremely long and sharp!

Steel Claw Source Fu!

Although this source endowment is not very strong, it has not yet reached the level of a top-level source endowment, but its destructive power is one of the best! Especially after the reversal, the destructive power has been greatly strengthened.