Kabart Empire's Imperial Capital Star, thick smoke is rising everywhere on the surface at this moment.
First, it was hit by fragments of the fortress, and before it could catch its breath, it was bombarded again from orbit by Human Federation's battleship.
Nowadays, all activated anti-air defense systems have been targeted and destroyed, and only some well-hidden and unactivated defense systems are still alive.
After a wave of attacks from the battleships, millions of high-speed falling fireballs appeared in the sky. They were the first wave of Human Federation airborne mechas, totaling 5 million units.
Their mission is to search for and clear out missed anti-aircraft firepower and provide support for subsequent airborne troops!
Nowadays, there are no small defense systems left in Kabart Emperor Star. All large ones, whether activated or not, were completely destroyed when the first wave of battleships attacked.
These small defense systems do not pose a great threat to the mecha. After all, the mecha's maneuverability is too high. Even if it is unfortunately hit, as long as it is not the cockpit, the pilot's life can be saved by ejection.
But Assault Ship is different. If it is hit, it will basically be the result of ship destruction and casualties, and at least hundreds of people will be killed at one time.
Therefore, Assault Ship would not dare to airborne directly without protection.
Fifteen minutes later, the ground mecha troops sent out a signal and had cleared all the defense systems they could find.
After receiving the news, the second batch of airborne troops began to break into the planet's atmosphere. This batch of troops included 60,000 Assault Ship and 13 million mechas.
In the middle of Assault Ship, 13 million mechas surround it, forming an airtight protective network!
Sure enough, there were still hidden fish that slipped through the net. Several ordinary-looking storefronts suddenly opened up, revealing the internal anti-air defense system, and began to attack!
If there were mechas nearby, they would immediately react and destroy them. If there were no mechas, a warship within the shooting angle would directly fire a secondary cannon into the soul.
These anti-air defense weapons can basically only fire once and are quickly destroyed after being exposed. However, a fire is also a fire. There are still several mechas that intercept the firepower of Assault Ship with their own fire in order to protect it.
Fortunately, none of the dozens of mechas that were hit had any critical injuries, and three of them were seriously damaged and the pilots were ejected, so no one was killed.
As the second batch of airborne troops landed on the ground, the purge began!
Now First Legion's soldiers no longer need Lin Fan to reiterate orders. Everyone knows what they should do without hesitation!
The commando team cooperated with the mecha and quickly occupied Kabart Imperial Palace, but did not find Farhale. Finally, after careful search, they finally discovered the secret passage leading underground.
However, its downward path has been completely blocked, and the commandos and mechas are helpless for a while.
But when the news reached Lin Fan's ears.
"Let Kabart Imperial Palace quickly evacuate all troops within a radius of 300 kilometers, and then directly use a MARK III earth-penetrating nuclear bomb!"
"Yes, Legion Commander!"
MARKIII Drill Bomb is the most powerful earth-penetrating bomb currently developed by Human Federation. Its drilling depth can reach a maximum of 1,000 meters. It is called the nemesis of underground fortresses!
Imperial Palace 800 meters underground, Kabart royal fortress command post.
"Your Majesty, the humans who invaded Imperial Palace have begun to retreat!"
"Huh? They had clearly discovered the entrance to the bunker just now. Why did they retreat? What did they want to do?"
Although the bunker is very strong, Farhale also understands that humans can always break through as long as they spend some time. It is just a matter of how long it takes.
Therefore, when the human discovered the entrance just now, he knew that it was over and there was no hope.
But now the human beings actually started to retreat. This operation made him very incomprehensible. However, the next moment, the human beings told him with actual actions why they were retreating!
On Uranus, a missile launch port was opened. A minute later, a huge missile with a long tail flame was shot out from Uranus. After adjusting its attitude, it plunged into the planet.
When the missile passed through the atmosphere, the shell suddenly ejected in all directions, revealing its true appearance.
Once people take a look, they will understand what this missile is used for!
This is not the old-style ground-penetrating bomb in the conventional sense. The old-style ground-penetrating bomb relies entirely on the strong body of the projectile to hit it hard to achieve the effect of penetrating the ground. However, this method can only penetrate the ground for about 200 meters at most, which is the limit.
But MARKIII Drill Bomb is something completely different. In addition to its stronger projectile, it also comes with a powerful drill bit. This drill bit is made of the hardest material that humans can currently create.
When the projectile hits the ground, the drill bit will start, and the propeller on the projectile will also start, and it will continue drilling all the way. This powerful drill bit can support drilling down to a depth of at least one thousand meters!
Farhale in the bunker also saw the picture of the ball slamming into the ground and beginning to drill downwards.
How could he not guess what this was? His face suddenly turned pale.
"Your Majesty, human weapons are constantly drilling down, and they have already drilled to a depth of 300 meters. No, it is already 400 meters now, and it is still going on!"
In the command room, the chief of guards said anxiously to Farhale.
Everyone was anxious, but no one had any way to stop this. They could only watch as the things marked on the screen got closer and closer to the bunker.
"Your Majesty, human weapons are less than 30 meters away from us!"
The chief of guards turned around and shouted to Farhale, but what he saw was Emperor Farhale who was completely stunned, without any movement at all!
Finally, this MARK III ground-penetrating bomb completed its mission and drilled directly into the shell of the fortress. After all, the shell was still very hard, and the drill bit was very worn by now. It was definitely impossible to drill through the shell.
However, there is no need for it to penetrate the shell and reach here, and his mission has been accomplished.
Inside the fortress, Farhale even heard the sound of the ground-penetrating bomb just hitting the outer shell of the fortress.
The next second, Farhale didn't even have time to think about it, because MARKIII Drill 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 lifted up. The original Imperial Palace suddenly became ruins, and even caused a moderate earthquake. The power is evident.
In the orbit of the planet, Lin Fan witnessed this scene from the bridge of Uranus.
Speaking of which, this is already the second emperor Lin Fan has killed!
"Goodbye, Farhale!"