In other words, if you want to use the ground-based drill-drills to blast through the alien lair, you must fire more than 100 ground-penetrating bombs in a row, and each of them must hit the same location until the alien nest is completely penetrated!

Let's talk about the alien nest in Qiongzhou, just above the core area is a mountain with an altitude of nearly 2,000 meters, and there are more than 3 kilometers below sea level, and the current vertical depth is 5,400 meters, and under the most ideal conditions, it also takes more than 70 ground-penetrating bombs to blow up the core area.

What if the conditions are not ideal?

Any kind of weapon has the problem of hit accuracy, and no matter how advanced the technique, it can only narrow the hit range, and it is impossible to smooth out the error.

No matter how accurate the ground-penetrating bullet is, it is impossible to hit the same position again and again, as long as one ground-penetrating bullet is crooked, the result is likely to be wasted.

Bei Yuezhou's answer reminded Ye Han of the Battle of Jupiter, where he had used nuclear weapons as a ground-penetrating bomb to inflict a lot of damage on the enemy...... Nuclear weapons are indeed a good option, and a ground-penetrating bomb carrying a nuclear warhead can destroy at least a few hundred meters of the tunnel.

But once nuclear weapons are used, the plan to capture the aliens alive will be completely ruined - only by capturing the aliens alive can we get more information about the alien base, and this information may even affect the final direction of this war, so unless it is absolutely necessary, the coalition high-level will never use nuclear weapons.

Regardless of whether they have nuclear warheads or not, land-based nuclear weapons are not suitable for striking alien nests, but it doesn't matter, the coalition forces still have space-based kinetic weapons known as the "Battle of God"!

In Ye Han's impression, this thing was more suitable for alien nests than land-based ground-penetrating weapons.

But space-based kinetic weapons are not used casually, the power of this thing is comparable to a nuclear bomb, and it is not much different from directly smashing it on the alien lair, which is not much different from directly smashing it with a nuclear bomb...... In fact, there is still a difference, space-based kinetic energy weapons are not the same as nuclear bombs, the kinetic energy carried by metal rods cannot all be converted into explosive force, and the sound and light effects when landing are far inferior to nuclear bombs.

In order to resist the excess power, the metal rod must be reduced to fall so that the thing can burrow into the ground without being overpowered.

When Ye Han contacted Beiyuezhou, the high-level leaders of the coalition forces were discussing whether to use space-based kinetic energy weapons.

Shortly after the call between Ye Han and Bei Yuezhou ended, the top brass of the coalition forces voted by a show of hands to use space-based kinetic weapons by a narrow margin.

At the sound of an order, more than a dozen space stations in outer space and the Languan assault ship were immediately ready to open fire.

To be cautious, the coalition forces did not attack all the alien nests at the same time, but first used one of the alien nests in the land of Asan as an experiment...... Well, this is also a request made by Ah San on his own initiative, such a good thing, the top of the coalition forces will naturally not refuse.

As a result, a space station that happened to run over the three countries of Afghanistan activated the kinetic weapon module, and several metal rods with a diameter of more than 30 centimeters, a length of eight meters, and a weight of several tons were aimed at the target.

For best results, several metal rods are fired at extremely short intervals, almost end-to-end, towards Earth.

Propelled by a booster rocket, the metal rod burrows into the atmosphere at high speed and turns into a meteor that falls from the sky.

However, in just a few minutes, several meteors with a dull sound of breaking the sky accurately hit the alien lair in the land of Ah San.

At the moment of hit, the area around the alien lair vibrated violently, and a slowly rising mushroom cloud rose above the target.

But that mushroom cloud is like that, there is neither a strong shock wave, nor a bright light that brightens the blinding eye, even if a heavy bomb explodes, its sound and light effect is stronger than this.

The first mushroom cloud has not yet dispersed, the second metal rod landed, and another mushroom cloud rose, just like that, seven metal rods in a row hit the target one after another, whether they landed in the same position is not clear for the time being, but the landscape of the seven mushroom clouds rising in turn did surprise the nearby Ah San army.

Ah San quickly took action, and immediately measured that the penetration depth of the metal rod was about three kilometers, and it would take another three kilometers to penetrate the core area of the alien lair.

It turns out that space-based kinetic weapons not only have the expected effect of drilling into the ground, but also have amazingly high accuracy.

Time was running out, and the coalition high-level immediately ordered all human troops to withdraw from the alien nests immediately, and later launched an attack on the alien nests!

Soon after, all personnel withdrew from the enemy nest, and the notified space station simultaneously opened fire on ground targets, and hundreds of metal rods turned into a series of falling meteors in a very short period of time, hitting their respective targets.

The alien lair of Qiongzhou was no exception, with twelve metal rods hitting the top of the mountain one after another, and twelve mushroom clouds rising one after another, making the mountain look like an active volcano about to erupt!

No sooner had the strike from outer space ended than a swarm of drones flew up to the top of the mountain and swarmed into the newly opened hole at the top of the mountain.

After a while, the hive found Ye Han: "Report to the captain, get the data!" ”

"How?" Ye Han asked eagerly.

The hive has a strange look: "The metal rod has pierced the water vein, and the drone cannot enter the ......"

"What?" Ye Han couldn't believe his ears, what the hell was going on?

He thought that the news fed back by the drone was the depth of the hole at the top of the mountain, but he didn't expect it to be like that at all!

Honeycomb added: "I lost some of the drone's signal, according to the current aggregated data, the penetration depth of the ground-penetrating projectile should be about 4,500 meters." ”

Ye Han sighed: "There are still five or six hundred meters left......"

He was about to call Beiyuezhou to let the space station in the sky fight again, but was stopped by the hive: "Captain, the water is flooding the enemy nest from above, and it won't be long before the aliens have to come out on their own!" ”

"What?" Ye Han was shocked again, "Give me the picture!" ”

The hive immediately complied, Ye Han received the data and saw that it was all video clips sent back before the drone was flooded, the core area was about to be flooded, and the aliens were fleeing the core area under the surveillance of the drone.

Ye Han's expression was distorted: "How can this be?" ”

After thinking of so many ways, I fought with the insects inside and out, and in the end, it was such a result...... Speaking of admiration, the insects hit such a deep hole, they didn't even touch the edge of the underground water vein, and the human being was completely finished as soon as they got started, and they smashed through the water veins directly, and there was a flooded enemy nest.

If you had thought of this method earlier, what would you have used to drill into the ground? Wouldn't the problem be solved by directly penetrating the water vein?

Ye Han immediately reported the situation to Beiyuezhou, and Beiyuezhou, who got the news, was not surprised, but he didn't expect that there was so much water here, forcing the aliens to abandon the nest and flee.