More than 300 mountain spirits, in the southeast of Binhai City, forcibly cleared a three-kilometer-wide front. Not only did they destroy all the traps on this defensive surface, but there were even more than a hundred left. They picked up several tons of granite iron fists and slammed them rhythmically against the base of the great coastal wall.

This wall is the ultimate fortification that the Luhe Group has spent countless efforts to build, and the surface is all reinforced alloy, of course, it is impossible to be shaken by such a few punches. But if left unchecked, these attacks will accumulate and cause some damage to the foundations of the city walls.

Moreover, when the demons' follow-up offensive forces arrive, these big guys can also become the pedals below. They are less than three meters tall, but they are all stacked together to form a small hill.

The demons in the back followed the hillside and could climb almost to the level of the city wall. There have been several cities that have fallen in this way - of course, their walls are not worth mentioning.

In peacetime, the defenders of the coast had many ways to deal with these big guys, but because of the power outage, many of them were empty talk.

The human soldiers were at a loss, but they were anxious to see Lao Lu who was watching the battle from a high place. He was originally in charge of leading the cultivators of the Coastal Sea as the backbone of the defensive battle, but it was far from the time for them to make a move.

Because the enemy has just played a card, if this side of the big card is out, then the game will not be playable.

Seeing that the demon wind behind him suddenly rose, another wave of demons followed the passage opened by the mountain spirit and was about to attack the city wall in the southeast direction. At this time, the mountain spirits under the base of the wall had begun to pile up, and if they were allowed to form a stone ladder, the ordinary soldiers with guns above would not be able to stop the demons who followed up.

Lao Lu was anxious, looking left and right, and suddenly saw a large fuel tanker truck hurriedly driving in that direction. However, due to the heavy load, the tires of the tanker truck slid on the transport aisle behind the city walls. More than a dozen soldiers pushed hard behind, but it was only a drop in the bucket.

Lao Lu jumped down, tapped the top of the building with his toes, and rushed to the place where the accident occurred within a few breaths.

"What's going on?"

He casually pulled over a soldier wearing the epaulettes of the squad leader.

"Instructor Lu!" The soldier recognized the person in front of him, it was Lu Ning, who often guided everyone in the barracks to deal with demons on weekdays.

The soldier immediately reported the plan to Lao Lu.

It turned out that this was the machine gun squad responsible for stopping the mountain spirits just now, and after finding that it was almost ineffective, the superiors rotated them to the rear. Others tried manually adjusting the Sniper Cannon in order to inflict more effective damage on the mountain spirits piled up below.

These soldiers saw that the battle situation in their own defensive section was unfavorable in the back, so they still had the mind to rest. It's not the same as a war between humans. Wars between human beings, surrender can be. But if the demons win, there is only slaughter. And in the hands of those terrible monsters, even death is a luxury.

The soldiers scratched their ears and cheeks to find a way, and happened to see a fuel tanker truck parked on the side of the road, with four big words painted on it: "Liquid nitrogen danger".

This is a transport truck carrying liquid nitrogen coolant to the heavy water plant, but due to the failure of the reactor on Xu Yishan's side, the coolant cannot be used on the auto-fill interface for the time being, so the driver parked the car on the side of the road.

The machine gun squad leader had an idea, maybe liquid nitrogen was the best choice against those guys who were hard granite inside and out.

The warriors thought of it and drove a whole cart of liquid nitrogen up the city walls. But everyone did not expect that liquid nitrogen is not as dense as gasoline, and the load is quite large. On a steep slope in the passage of the city wall, the tires squeaked and slipped, and it was impossible to drive up.

Lu Ning thought about it, this was a good way, so he personally went down to help. After all, he used to be a major repairer, and his strength was not much higher than that of mortals. The six soldiers pushed the liquid nitrogen transport vehicle without moving, and he held the bumper bar in one hand and pushed the transport truck on.

There are only a few hundred meters left to pass the road. The driver drove up the transport channel behind the city walls, and in less than two minutes, a full twenty tons of liquid nitrogen were transported to the city.

At this time, the battle situation was stalemate, and the mountain spirits under the city wall had been densely stacked together, piled up into a small mountain bag. The mountain spirits below are still climbing up.

At this rate, it won't be long before they can climb to the top of the city.

The most dangerous thing is not these cannon fodder, a little farther away, a black torrent is flowing here at a great speed. Looking through the binoculars, it was a myriad of black mice. Each one is the size of a wild boar, with sharp claws and blood-red eyes.

These are the rat demons under the Witch King, and at first glance there are at least 10,000 of them! During the bombardment the day before yesterday, these rat demons hid in deep holes in the ground and escaped. As a result, they are now the most numerous type of the pack.

These monsters are not suitable for solo action, as their defense is extremely limited. On a fixed line of defense, automatic fire in the hands of humans can kill them in large numbers.

But once other demons help the rat demon break through the defense line and let the rat demon rush into the rear of the human race in large numbers, it will be a catastrophe.

Because these rat demons are extremely fast, it is difficult to encircle and suppress, and they can even burrow and hide when they are in a hurry. They know how to seek advantage and avoid disadvantage, and they can flee at the touch of a neatly armed soldier, but they are unrelenting and ferocious in chasing and killing the old, weak, sick and disabled civilians.

Moreover, they carry the disease on their bodies, and will spread green plague gas among civilians on a large scale. This disease is very troublesome, and if there is no practitioner to dispel it with true yuan, the patient will rot and die within a night. This is simply a civilian killer. Once a rat demon appears in the city, the blow to morale will be devastating.

The petty officer in command at the head of the city was sweating profusely, and he kept directing the defenders to manually manipulate the sniper cannon to shoot downward. The armor-piercing shells fired by these cannons are armor-piercing weapons, and when a long arrow-shaped cannonball hits, it can pierce the mountain spirits.

However, the rejection ability of this cannonball is too poor, and if it can't hit the demonic core of the mountain spirits, these granite big guys don't seem to care very much about opening a few small open holes in their bodies.

If the auto-lock sight can be used, the five sniper cannons on this defensive surface will be enough to destroy all the mountain spirits in ten minutes. It's a pity that the power is out now, and nothing can be used.

The petty officer organized the soldiers to manually aim and fire, and after fighting for more than ten minutes, it only made a dozen mountain spirits stop moving.

The efficiency is not as good as the defender Ray who keeps throwing it down.

When the officer saw Instructor Lu Ning coming over with a transport truck, he immediately greeted him as if he had seen a savior. If this place is lost, he will be left with the choice of dying now or dying later.

The power was cut off, the defensive weapons were shut down, and the only way to do this was to rely on powerful cultivators. The officer hoped that Lu Ning could support some of his cultivators and sweep away all the mountain spirits entrenched under the city walls.

As for the rat demon in the back, there is nothing to be afraid of. As long as these extremely fast rats could not rush directly to the city walls, the officers were confident that they would all be strangled under the walls.

The walls of the Marina were fifty meters high, and the rat demons could not jump on them, and although their claws were sharp, they could not penetrate the harder alloy surface of the Coastal Walls, and they could not climb up.

I'm afraid that they will rush up the slope that the mountain spirits have piled up. They were too fast, and the targets were so small that the soldiers had no time to destroy them with covered shots.

The situation was urgent, and Lu Ning was too lazy to talk to the officer, so he directly pulled it aside. He casually pulled open the two ammunition feeders that stood in the way and gave way to the transporter.

The driver reversed and stopped, and the squad leader of the machine gun squad hurriedly ran over to open the valve behind the transport tank. Directly below here is a small hill where the mountain spirits have piled up, the highest of which is less than five meters away from the wall.

It picked up the giant arm of the yellow granite and smashed it against the wall like a demonstration. The huge force brought the shock wave, and the squad leader of the machine gun squad stood unsteadily and almost fell.

Lao Lu scooped up the soldier with one hand, drew his sword with the other hand, and directly cut a large hole several meters long under the transport tank.

Suddenly, the waterfall-like liquid nitrogen poured down on the mountain spirit's head and face.