The Imperial Capital of the Kabat Empire is full of smoke above the surface at the moment.

First, it was smashed by a wave of fortress fragments, but before it could recover its breath, it was bombarded from orbit by the warships of the Human Federation.

All of the anti-aircraft defenses that have been activated have now been destroyed, and only a few that are very well hidden and not activated are still alive.

After a wave of attacks from the battleships, millions of fireballs fell at high speed in the sky, which was the first wave of airborne mechs of the Human Federation, numbering a full 5 million.

Their task is to search for and clear the anti-aircraft fire that has slipped through the net, providing support for the subsequent airborne forces!

Today, there are no small defense systems left in Kabatti, and all the large ones, whether activated or not, have been completely destroyed during the first wave of warship attacks.

These small defense systems are not a big threat to the mecha, after all, the mecha's maneuverability is too high, even if it is unfortunate to be hit, as long as it is not the cockpit, it can save the pilot's life by ejection.

But assault ships are different, if they are hit, they are basically the result of the destruction of the ship, and at least hundreds of people will be killed at one time.

Therefore, without being guaranteed, the assault ship did not dare to directly carry out the airborne landing.

Fifteen minutes later, the ground mech unit signaled that it had cleared all defenses that could be detected.

After receiving the news, the second batch of airborne troops began to break through the planet's atmosphere, this batch of troops included 60,000 assault ships and 13 million mechs.

In the middle of the assault ship, 13 million mechs surround it, forming an impermeable protective net!

Sure enough, there were still hidden fish that slipped through the net, and a few storefronts that looked ordinary suddenly flipped up, revealing the internal anti-air defense system, and began to attack!

The mecha on the side immediately reacted and destroyed it, and if it didn't, it was a battleship in the firing angle that directly hit the soul with a secondary cannon.

These anti-aircraft defense weapons, after being exposed, can basically be quickly destroyed after only one fire, but one fire is also fire, and there are still a few mechs that intercept their firepower with themselves in order to protect the assault ship.

Fortunately, none of the dozen or so mechs that were hit were injured, and three of them were seriously damaged, and the pilot was ejected, so no one was killed.

After the second batch of airborne troops fell to the ground, the Great Purge began!

Now the soldiers of the First Legion no longer need Lin Fan to repeatedly emphasize orders, everyone understands what they should do, and they have no hesitation!

The commandos and mechs worked together to quickly capture the Kabati Palace, but they did not find Fahal, and after careful searching, they finally discovered a secret passage to the underground.

However, its downward path has been completely blocked, and there is no way for the commandos and mechs to do so for a while.

But when the news reached Lin Fan's ears...

"Let all the troops within a 300-kilometer radius of the Kabatdi Palace quickly withdraw, and then directly use a MARK III ground-penetrating nuclear bomb!"

"Yes, Captain!"

The MARKIII ground-penetrating nuclear bomb is the latest and strongest ground-penetrating bomb developed by the Human Federation, with a drilling depth of up to 1,000 meters, and is known as the nemesis of the underground fortress!

800 meters underground of the Imperial Palace, the command post of the Kabat Royal Fortress.

"Your Majesty, the humans who have invaded the Imperial Palace have begun to retreat!"

"Huh? They had already discovered the entrance to the bunker just now, why did they retreat? What do you want to do? ”

Although the bunker is very strong, Fahal also understands that it is only a matter of time before humans can break through as long as they spend a little time.

Therefore, when the human found the entrance just now, he knew that it was over, and there was no help.

But now the human race has begun to retreat, this operation is very incomprehensible to him, but the next moment, the human race told him with practical actions, why retreat!

On the Ouranos, a missile launch port was opened, and a minute later, a huge missile with a long tail flame was fired from the Ouranos, and then adjusted its attitude and plunged headlong into the planet.

As the missile passed through the atmosphere, the shell slammed out in all directions, revealing its true face.

At a glance, you can understand what this missile is for!

This is not the kind of old-fashioned ground-penetrating bomb in the conventional sense, the old-style ground-penetrating bomb is completely smashed into it by relying on a strong bullet body to achieve the effect of drilling into the ground, but this method is the limit of about 200 meters at most.

The MARK III Ground-Penetrating Nuke, on the other hand, is a completely different story, in addition to being stronger, it also has a powerful drill bit made from the hardest material that humans can make so far.

When the projectile is smashed into the ground, the drill bit will be activated, and at the same time, the thruster on the missile body will also be activated, and the powerful drill bit can support drilling down to a depth of at least a thousand meters!

Fahal in the bunker also saw the picture of the fish slamming into the ground and starting to drill down.

Where could he not have guessed what it was? His face turned white all of a sudden.

"Your Majesty, the weapons of the human race are constantly drilling, and they have been drilled to a depth of 300 meters, no, they are already 400 meters now, and they are still going on!"

In the command room, the chief of the guard said anxiously to Fahal.

Everyone was anxious, but no one could stop this, and they could only watch as the things marked on the screen got closer and closer to the bunker.

"Your Majesty, the human weapon is less than 30 meters away from us!"

The chief of the guard turned to Fahal and shouted, but what he saw was Emperor Fahal, who was completely stunned, and did not move at all!

Finally, the MARKIII drill completed his mission and drilled directly into the shell of the fortress, after all, the shell is still very hard, and the drill bit is very worn out by now, and it is definitely impossible to penetrate its shell.

However, it didn't need to penetrate the shell at all, and to be able to get here, his mission had already been accomplished.

Inside the fortress, Fahal even heard the sound of the ground-drilling bomb hitting the fortress shell just now.

IN THE NEXT SECOND, FAHAL DIDN'T EVEN HAVE TIME TO HAVE A FINAL THOUGHT, BECAUSE THE MARKIII GROUND-PENETRATING NUCLEAR BOMB HAD ALREADY DETONATED, DIRECTLY DESTROYING THE UNDERGROUND FORTRESS.

If you look at it from the sky, you can even see that a large area of the ground has been completely lifted up, and the original imperial palace is suddenly in ruins, and even caused a moderate earthquake, which shows the great power.

In orbit of the planet, Lin Fan witnessed this scene in the bridge of the Ouranos.

Speaking of which, this is already the second emperor that Lin Fan has killed!

"Goodbye, Fahal!"