The Gushan Fortress Group is a rectangular oblique shape, which is a valley surrounded by two mountains, with only two exits from east to west.

The two exits in the east and west are covered with metal walls 14 meters high, and there is fortress artillery fire above the valleys on both sides. This defense system was arranged by Qing Junlu, the chief of the Armed Forces Alliance a thousand years ago.

Six hundred years ago, the automatic defense turret was not as powerful as it is today, and many cities took turns to take charge of it. The cities of Taiyun were so arrogant that they were commanding the firepower on the mountain and guarding the natural dangers.

In history, the Great Wall that failed to attack this fortress was eleven. The largest of them was forty years before the Battle of Weishui.

Sixi organized six Great Wall and their teams to attack from four directions, three Great Wall died, two Great Wall seriously injured, and one Great Wall was unknown. This failure indirectly led to the decline of Sixi's national strength, and was exhausted by the Taiyun Empire in the subsequent battle of Weishui.

The Gushan Pass was called the Unbreakable Wall in the late Warring States Period.

Now, with the enhancement of automated weapons, near-defense guns are stronger than that of the past. With the establishment of intelligent domain towers, the coverage, duration and intensity of the domain system are much stronger than the city professions stationed in the past.

When the Apocalypse arrives.

The Wushan Fortress has been called the unpopular zone, and the Wushan mode has been quickly copied to other passes and is used as a mother nest for the military as a mobile base.

In this defensive circle of copper and iron walls, a dense railway network is derived from the outside. The distribution of railways in rows divides the fortress into multiple areas, each area parked with tens of thousands of tons of mobile bases and supporting facilities like parking spaces in a parking lot.

...

Qianchuan’s strategic thinking today is very simple. It is to rely on these large-scale fortresses of A-level to guard the strategic focus, and then send the small turtle (mobile base) out of the hole to guard the secondary strategic focus.

Qianchuan Tower Defense Party: As long as you divide all the mines, no, as long as you take all the levels first, you will hang any enemy that may appear in Qianchuan like an iron chain.

This is the "steady" military theory developed five hundred years ago when mobile bases emerged.

Criticize in the words of "Black": If you get used to being a turtle, you will become addicted. If you like to carry a turtle shell, you will never want to let it go again. In order to make it reasonable for yourself to be a turtle, you have specially hypnotized a set of correct theories.

...

It was six o'clock on the 8th.

Large-scale mecha corps have been discovered in the Fortress of Wushan. The supreme commanders in the Fortress received this news and immediately paid close attention.

In the fortress, all areas began to move around. The radars on the mountain were all stupidly turned on. I didn't know that the radars would all become targets for anti-radiation missiles when they turned on.

There was no large-scale war for four hundred years, and the Qianchuan military system did not even play the highest level of the old era, but seemed to be busy.

Scene 1: shallow passages in the mountain defense circle. In these metal passages, red lights warn all personnel to enter combat posts. Soldiers wearing power bones line up on each runway to enter the defense circle and standby on various combat positions.

Scene 2: In the central area of ​​the Wushan Fortress, a large center was dug out from the underground of the tunnel center. Here is an intermediate command hub, and commanders at the colonel level were sitting in the sub-control center. The intelligent system is summarizing the three-dimensional projection of the entire fortress, and artificial intelligence judges the status of the distant order army assault group based on the reconnaissance drone.

Scene 3: In the deepest underground and the highest-level center in the fortress, in a group of medical staff, the hibernation chamber, which was like a standing cabinet, was flashing with blue light and entering a state of ready to be activated. There are a total of eighteen medical pastors outside the hibernation chamber.

The medical pastor Chao Akiko (female, 64, looks like 28, long hair, but now it is blocked by a full-covered helmet and cannot be seen).

She looked at the electronic clock, walked in the hall in an etiquette, and used an electronic helmet to report the situation to the highest elders in the hibernation warehouse.

In the hibernation chamber in the hall, those who have been alive since the electrical calendar opened their eyes without a trace of human emotions and looked silently at the soldiers on the screen.

If ten years ago, some people said that an armored unit wandered outside the Gushan Pass was facing the city, it was a funny word.

But now, the big news in Junyu City conquered the Seventh Army has made the commanders in the fortress use very cautious words.

...

Now.

The white troops did not launch a general attack immediately, but instead sent a small group of troops to repeatedly cut into the fortress to attack, using harassment to engage in low-intensity confrontation with the Fortress.

Dozens of rockets were smashed from time to time, and these rockets triggered the near-defense gun system on the fortress.

The near-defense gun opened from the fortifications of the fortifications based on the rail system. The turret turned very quickly, and the bullet density was connected into a line. Overall, it was like a long sword of thousands of meters standing on the mountain and swinging towards the sky.

With a swing, all the flying objects were exploded in the air. The tungsten-core armor-piercing missile warhead was devastating to the missile shell. There are now hundreds of such near-defense gun systems, forming a crawling firepower network.

...

The first thirty minutes of the total attack.

Six large transport aircraft flew to a low altitude of ten meters and dropped airdrop containers. The tightly packed boxes slammed on the ground under the buffer of the air cushion, causing a circle of round-shaped waves of shock smoke.

Mechanics temporarily recruited from the Northern United Industry Alliance, wearing tentacle mechanical suits with fool-and-shoot operating systems, began to provide final maintenance of the assault mecha system.

It's in a simple repair shop.

Chibai is also taking the field to repair his own mecha himself.

This mecha almost evolved to the extreme for assault. Its wings were already very narrow, and the cockpit at the rear was large, allowing the operator to operate internally in top-level individual mechanical combat uniforms.

The top individual combat uniforms were also made by Chi Bai himself.

Chibai was 1.8 meters tall at this time, and with this set of individual combat uniforms with distinct mechanical structure and exquisiteness, it had a strong metallic radiance.

Chibai patted the conical head of the assault mecha, and the conical head was covered with brick-like reaction armor.

At this time, the sound of metal footsteps came from behind Chibai, and Chibai couldn't help but look back.

The visitor was a female officer with a vigilant spirit, Nan Yuelong (the leader of the reserve army selected by Chibai), but now it is Queen Feng, and he cannot show up in Chibai.

She walked up to the front and saluted in a normal manner and said, "Commander, the special electromagnetic bomb has been sent over from the rear." The captain looked at Chibai. She did not directly say the word tactical nuclear bomb.

Chibai nodded.

After hesitating for a few seconds, Nan Yuelong asked again: "Sir, when will this nuclear weapon be fought now?"

Chibai waved his hand: "No, no, why do you use this? The defense system on the opposite side is not suitable for nuclear weapons. This thing is scary after winning."

Nan Yuelong forced out his smile and persuaded: "Commander, this pass is worth using this weapon."

Chibai sneered: "No, this heroic pass is worth my rush!"

...

At 7 p.m. on March 8, 547, the Apocalypse Calendar, as the sun sets in the west, the red glows in the sky fade away, and large flares of lights projected over the Fortress of Wushan.

The attack began. The Dragon Guards were divided into three parts to attack. Among them, large-scale troops were concentrated in two directions, and the defense system of the Gushan Fortress immediately discovered that the Order Army in the flat war zone in front had entered the range of long-range fire strikes by the fortress group.

On the mountain, large fortress cannons were opened and the gun barrels were raised, but facing wave charges on the front battlefield for dozens of kilometers, the counterattack of the fortress cannons became slightly loose.

The queues of the impact cluster are quite large, and there is a radar system for detecting shell ballistics in the sky. This data link is transmitted to the dragon guards on the ground. Therefore, even if most dragon guards happen to encounter shell strikes, their wings will slightly raise and avoid the fortress cannon strikes.

However, when the wave of large-scale offensive approached ten kilometers of the fortress.

Just like an ancient knight who charges and throws javelins, of course, the scale of the throw is ten kilometers now, and the "javelin" thrown is a heavy rocket launcher.

In the assault mecha cluster that was rushing on the ground, rockets dragged white smoke and clouds across the sky, like thousands of white hair, and lightly Yangxi Pass with the east wind.

With the suppression of the rocket rain, the roar of the long-range fortress cannon on the mountain was like a tiger breaking its spine and suddenly shrank down.

Exploding sparks swayed the trees on the mountain.

Although the outermost defense of the Gushan Fortress was not completely destroyed, it is now unable to provide fire cover.

As the "coat" of the Fortress Cannon in the Gushan Fortress failed to defend, the "underwear" could only withstand the storm.

In the castle on the mountain, small laser near-defense towers popped out from the ground.

If there is no "accident" and the attack is forced, the Dragon Guard will be severely damaged under this level of counterattack firepower.

However, the stars in the sky are particularly bright at this time.

...

Enter the perspective of the defensive side.

On the fortress group, in the control center connected by the tunnel, the artificial intelligence that leads the defense and counterattack is busy, and numbers are jumping quickly on the screen.

On the mountain model projected in the base hall, lasers and near-defense systems are operating from the track to the appropriate position, poking their heads out to prepare for a fatal blow to the incoming charge group.

However, the commanders sitting in the fortress control warehouse had no joy on their faces, because in the radar alarm, the dense batch of ballistic missiles in the sky was falling, and at this time, the Domain Tower was locking the ballistic missiles with all its might. The number of ballistic missiles was large, with a total of 63 rounds, and it seemed that they were still preparing to come down at the same time.

When it fell, it happened to be when the Order Army arrived at the mountain front.

Just as these commanders sitting in the control compartment adjusted the firepower ratio, a new alarm came. A large number of thousands of cruise missiles appeared from the radar's perspective.

Since these cruise missiles are flying against the ground, they are closer than ballistic missiles at this time. They have approached thirty kilometers and caught up with the Assault Legion at an astonishing speed and are about to pass over the head of the Assault Legion!

It is expected to arrive at the same time as the ballistic missile!

...

If the firepower is automated, the defenders will gain the upper hand.

Then timing technology and information communication technology will give attackers unprecedented advantages.

No matter how strong the defense is, as long as enough firepower is transferred in a very short time, it can be smashed through and then rushed down by the legion that followed.

In a few seconds, the trajectories of these thousands of cruise missiles began to be divided into two teams and multiple groups, and they were about to attack the mountain fortress area from all directions.

In other words, the fortress will bear unprecedented firepower immediately!
Chapter completed!