With a "bang", the ground shook, and the huge metal wall hit the mountain range on the side, and the collapsed mountain collapsed like an avalanche, and the wall of Line 9 clamped into the huge mountain range, and it was completely integrated together.

"Shake the mine launch!"

With Naya Xue's order, the projectile behind the city defense was activated at the same time, and huge "stone mines" bypassed the city wall and threw them into the sky in the distance.

The Shake Mine, an extremely ancient weapon, has once again radiated its vitality in the confrontation with the aliens.

Like the stone throwers of ancient times, the mine-shaking launcher is a giant stone thrower.

The machine is up to 100 meters high, allowing its rotating swingarm to achieve an extremely large initial speed.

Coupled with the rope throwing of equal length folded on it, it was able to throw the three-ton "spirit ball" out.

The speed of flight of the Shake Mine is not fast, but by inertia, it can be thrown up to a thousand kilometers away, and then, its great power appears.

The "stone ball" that shakes the mine envelops a liquid that shatters on touch, and then the liquid is ejected like a tsunami, so that the ground it hits is covered in a thick, viscous liquid.

The spilled liquid can be judged for itself, leaving it with three options.

1. Block the ground. The liquid solidifies at a high rate and then forms a thick layer of "rock" that has a very unstable structure and is impossible to escape from except by crushing it.

With this layer of "rock", it is difficult for the aliens that are hiding underground to get out of the ground, so humans are able to restrict their movements.

But that's not all, if the alien wants to smash the "rock" and drill out to the surface, a new problem will arise, because the "rock" will explode, and under close attack, it has extremely powerful destructive capabilities.

Second, direct explosion, use the shock wave to kill the alien. This is another attack method for Shake Mine, which is suitable for launching a wide area of attack and has excellent killing efficiency against dense insect waves.

3. Corrosion. For the Xenomorphs that sweep through the sky, the Shake Mine can also attack. When it spots a wave of xenomorphs in mid-air, it explodes in the air and spreads a large net in the sky.

At high speed, the alien generally can't avoid this sudden giant net, so most of them will be wrapped in the mesh, so trouble comes, because these meshes are highly corrosive substances, and ordinary aliens can't withstand its attack.

It is precisely because of its many advantages, coupled with the low cost of shaking mines, that the technological planet can complete the process, so this weapon has been used to this day, and has become the best weapon for large-scale attacks and covering the retreat of friendly forces.

Ling Junjie, the presiding general of the No. 8 defense line, a high-level cultivator of the Planet Kree, he was very unwilling, but even more helpless.

The alien's attack was so fierce that the human walls couldn't hold it at all.

Under the leadership of Ling Junjie, the city defense personnel launched a ten-day and ten-night blocking operation, and every soldier moved forward bravely, and the support from the rear was continuous, but he still had to admit defeat in the end.

The destruction of the city wall means that the human soldiers have lost their barriers, and on the empty plains, these hundreds of thousands of soldiers are just a drop in the ocean compared to the monstrous insect tide, and there is no way to do anything except evacuate.

The sound of "woo, woo" continued, and the dense sphere volleyed down, and the retreating soldiers easily avoided the bombardment of the "shaking mine", and then flew behind the "stone rain" area.

The support of the No. 9 defense line was very timely, and Ling Junjie had already heard of General Na's prestige, and her command was really meticulous.

Behind him, the surging insect tide covered the sky and the sun, and hundreds of millions of insects were completely connected to the ground, the ground, and the sky, and they were like locusts, and the sound of "buzzing" shook the ground.

With a "boom", the first shaking mine hit the ground, and then there was a "poof", and the liquid wrapped in it sprayed out.

The three-ton liquid, coupled with the speed of high-speed flight, the liquid that spewed out was like a huge wave, slamming heavily on the swarm of insects that caught up.

With a "boom", the waves exploded.

The red light ignited from the root of the wave, and then like a spark burning the plain, it was out of control, and the red light penetrated every corner and every corner of the "big wave", and then began to expand.

The liquid began to vaporize, the particles began to erupt, and the violent energy blasted out, and the space with a radius of nearly 10,000 square meters exploded in an instant.

With a "boom", hundreds of aliens were thrown out, and the bodies of the insects began to decompose in the air, and the violent energy rudely tore at them, and after the air wave, only wisps of fragments were left in the air.

More mines fell, they exploded in the air, and then it was as if they had blown away the thick fog, and the dense insect tide "smoke" was always emptied by them.

The Xenomorph's pursuit was temporarily frustrated, and more Shake mines smashed to the ground.

With a "poof", a piece of "waves" were connected together, and then swept out along the terrain, and some aliens running on the ground couldn't dodge, and were swept up by this "big wave".

With a squeak, the aliens tumbled all over the ground, their shells rapidly blistering, and then the solid armor softened.

At the same time, the liquid that had not yet stabilized on the ground began to solidify, so the alien wrapped in the liquid became even more miserable.

Their struggles grew weaker, and the liquid that enveloped them turned to rock, and a large number of bugs were condensed in them, and the aura in their eyes gradually dissipated.

The aliens beneath the ground are unknown, so in order to increase their speed, they are like dolphins, occasionally escaping from the ground, and after gaining a certain speed, they will burrow into the ground again, and then attack humans from below.

But this time it's bad.

As soon as they reached the surface, the aliens immediately felt a change, and the structure of the ground suddenly changed.

Before they could react, the rocks were smashed to pieces, and the explosion began.

"Bah, Bah, Bah, Bah", just like a minefield being detonated, stone springs rose up into the sky, and the aliens that rushed up were coerced out.

The powerful explosion power was connected, and the earth began to shake, huge cracks were torn out, countless ravines appeared on the plain, and the terrain became complicated in an instant.

"Pap, pap, pap, pap", the rushing insect tide could not be stopped, and a large number of insects crashed headlong, so those ravines became more and more chaotic.

The mine-shaking attack succeeded in stopping the aliens, and the soldiers of Line 8 were given a chance to survive.

In the sound of "whoosh, whoosh", the surviving hundreds of thousands of soldiers all swept into the No. 9 defense line, and a new war was about to start here.