On the second day, early in the morning, Xiaofeng Mountain was crowded with people.

The whole mountain is almost surrounded by three layers inside and three layers outside.

On the side of Yangcheng, 40,000 troops were dispatched.

Even Yonghe City, after learning of their actions, even squeezed 20,000 troops to support.

The total number of troops here has reached a full 60,000.

At this time, Ye Feng was also mobilizing the animal army of the Dragon King Palace.

2,000 mutated sparrows, 1,000 mutated black crows, 1,000 mutant bats, and more than 500 mutated goshawks purchased in the past few days, the number of flying armies has exceeded 4,500.

Especially the more than 500 mutant goshawks, their combat effectiveness is no less than 5,000 mutant black crows or mutant bats.

It can be said that the flying army in Ye Feng's hands finally has the combat effectiveness it deserves.

As for the ground forces, they are not weak, with 1,000 mutant hounds, 1,000 mutated mice, 500 mutated wolves, 400 mutated king cobras, 400 mutated honey badgers, 300 mutated tigers, 300 mutated lions, and 100 mutated buffaloes.

As for the rest, there are less than 100 mutated African elephants, mutated hippos, mutated brown bears, mutated jaguars, mutated giant pandas, and mutant hedgehogs.

To be precise, all of them add up to 150, and the number has barely increased.

But even then, the number of ground forces has already reached 4150.

In particular, the newly bought mutant tigers and mutant lions have exploded in combat effectiveness, directly increasing the combat effectiveness of the ground forces by more than two or three times.

With Ye Feng's order, the animal legion, which numbered close to 10,000, also set off at this time.

In the rear of the animal legion, there is also an army of insects with 40,000 mutated bumblebees and mutated red fire ants.

Of course, compared to the animal legion, the insect army basically played a warning role in the past.

With the animal legion of the Dragon King Palace, the atmosphere in the field has also changed from lively at the beginning to seriousness.

Ye Feng possessed the mutant parrot and slowly descended from a high altitude, in the process, he observed the soldiers around him.

The soldiers looked at them with a hint of vigilance and vigilance in their eyes.

No matter how pleasant the cooperation between the two sides was before, there are some things that cannot be changed by saying that they can be changed, and of course Ye Feng doesn't care about it.

Soon he landed in front of Bai Yinghui.

Here, in addition to him, there is also a division commander named Dong Ming, who is also the military representative of Yonghe City.

At this time, the two were talking in a low voice, and after seeing the mutant parrot flying down, they immediately stopped talking and greeted them.

"Hello Parrot Bringleal!" Both of them greeted each other warmly.

"Hello!" After Ye Feng responded, he looked at Bai Yinghui, "Whether you can successfully destroy the forbidden area today is up to you." ”

"Ahem!" Bai Yinghui was almost choked by his own saliva, he waved his hand again and again and said: "You think too highly of us, whether you can do it or not, I don't have a score in my heart!" ”

"How much has the performance of the latest model of the ground-penetrating bomb improved?" Ye Feng asked straight to the point.

Yesterday he only received a notice that the ground-penetrating bomb had been modified, and the rest did not ask much.

But now that we are about to start, it is natural to ask clearly.

"According to the latest data fed back from the Chinese Academy of Sciences, the effective killing range of this new ground-penetrating bomb is 150 meters, but only the middle 100 meters, the temperature can reach the standard of 3000 degrees."

"In addition, in the face of this kind of non-bunker, although this ground-penetrating bomb can go deep to 500 meters, the more you go into the ground, the greater the pressure, the smaller the explosion range, basically if it exceeds 300 meters deep, it is difficult to ensure that the power of the explosion can meet expectations." Bai Yinghui immediately said everything he knew.

"100 meters range? That should be enough. Ye Feng muttered to himself.

Although it is not at all comparable to the huge range of 500 meters of thermobaric bombs, the density of corrosive energy in the underground is also high!

After entering the ground for tens of meters, the concentration of corrosion energy will increase tenfold, and if it continues to go down, it will increase, and it is possible to reach twenty or thirty times the concentration.

That is to say, the effect of the ground-penetrating bomb, the explosion range of 100 meters, can be multiplied by at least 10, or even multiplied by 20 or 30.

"And how many ground-penetrating bombs did you bring this time?" Ye Feng asked the last key question.

"The first batch of 200 pieces, and there will be more to follow, and the total number will be 1,000." Bai Yinghui replied.

"Alright, let's get ready for action!" Ye Feng said immediately.

200 ground-penetrating bombs, according to his estimates, are enough to turn the entire forbidden area upside down.

After all, the scope of the forbidden area of Xiaofeng Mountain is really not large, although another three days have passed, but the distance of Xiaofeng Mountain's expansion is less than 600 meters.

Of course, the distance of this outward expansion is not counted in Xiaofeng Mountain itself, if it is counted, the diameter of the entire forbidden area is about 2 kilometers.

It is definitely the smallest forbidden area in the world.

Of course, nowadays, the world's largest forbidden area, with a diameter range of 20 kilometers, sounds like it is not much bigger than Xiaofeng Mountain.

But you must know that the forbidden area is basically circular and 10 times larger in diameter, so its area is 100 times larger than that of Xiaofengshan.

In other words, compared with the largest forbidden area, the area of the Xiaofeng Mountain Forbidden Area is only 1% of the opponent's, if it can't even be solved, Ye Feng will not talk about solving other forbidden areas.

As Ye Feng spoke, the Yangcheng military moved quickly, and this time they brought 50 missile vehicles.

Of course, with this range of the Xiaofengshan Forbidden Area, there is no need for so many missile vehicles, and the reason why they were transported here is completely spare.

Soon, the warhead was installed and the launch process was initiated.

"Parrot Emissary, how many ground-penetrating bombs do you think is more appropriate for the first wave to fire?" Bai Yinghui asked.

"How many ground-penetrating bombs do you need if you want saturation bombing?" Ye Feng asked rhetorically.

"That's going to take at least 30 ground-penetrating bombs." After Bai Yinghui answered first, he asked with some hesitation: "But wouldn't it be too wasteful to carry out saturation bombing?" ”

Saturation bombing is carried out, and some places will inevitably be bombed repeatedly.

"We can save some money to bomb later, but the first wave is still saturation bombing, after all, we can't predict what kind of response the other side will adopt."

"Maybe there is only one chance for this kind of unscrupulous bombing!" Ye Feng said.

The forbidden area has shown many strange points, even if they have formulated a lot of plans, but what kind of effect can be obtained, to be honest, Ye Feng really has no bottom in his heart.

Hearing Ye Feng say this, Bai Yinghui didn't say anything, he still believed in the other party's judgment in this regard.

Soon everything was ready for the missile forces, and Bai Yinghui did not hesitate to give the order to attack.

Whoosh whoosh!

With the activation of the high-power thrusters, the five cruise missiles slowly flew into the sky, and then, after turning the corner, went straight towards the restricted area.

The first wave of attacks fired first was not a ground-penetrating bomb, but 5 thermobaric bombs.

Detonating the thermobaric bomb first can make all the corrosive energy above the forbidden area retract back into the ground as before.

At that time, the corrosive energy in the ground will be more dense, and the effect of bombing with ground-penetrating bombs will undoubtedly be better.

Boom Boom Boom!

5 deafening roars resounded around Xiaofeng Mountain.

Looking at the five small mushroom clouds that were slowly rising, no matter how many times he looked at it, Ye Feng still had a shocking feeling in his heart.

Soon the five huge fire balls slowly disappeared, and with them, the corrosive energy that permeated the air.

At this time, Ye Feng had already extended some of his roots, and under the release of spiritual power, all the changes in the forbidden area could be clearly perceived by his body.

In fact, when he had broken through to the late stage of the fifth order and his roots were able to extend to the forbidden area, he had already tried to use his spiritual power to probe.

However, even if it was his spiritual power, there was nothing to discover.

It can't be said that he didn't find anything, he discovered that his spiritual power and this corrosive energy seemed to belong to the same level of energy, and the two could cancel each other out and annihilate.

But in the face of the huge corrosive energy in the forbidden area, the spiritual power he released was a bit like the contrast between Firefly and Haoyue.

That time, his spiritual power when he entered the forbidden area was wiped out in an instant.

This is one of the reasons why he is so wary of the forbidden area.

Although Ye Feng didn't dare to directly release his spiritual power into the forbidden area, there was still no problem with induction exploration on the periphery.

When he felt that all the corrosive energy had entered the ground, he nodded directly to Bai Yinghui on the side and said, "You can release the ground-penetrating bomb." ”

Bai Yinghui didn't say a word, and gave the order again.

Whoosh whoosh!

This time, there were 30 missile trucks, loaded with missiles that began to rise into the air, and this time they did not rise a few hundred meters and then turn to attack, but kept flying upwards and disappeared into the clouds.

When these missiles appeared in everyone's field of vision again, it was like 30 meteors falling from the sky, reaching 8 times the speed of sound, directly crashing into the mountain.

At the moment when the ground-penetrating bomb collided with the mountain, the powerful kinetic energy alone turned all the rocks and dirt in front of it into powder.

At this moment, Ye Feng felt that time had passed extraordinarily long, his eyes were staring at Xiaofeng Mountain in the distance, and after just a few seconds, the entire mountain began to shake violently.

The mountains and rocks are rolling, and the world is turned upside down!

It's not an adjective, it's a scene happening right in front of your eyes.

Everyone could see that Xiaofeng Mountain, including the surrounding ground, bulged up at a certain moment, and then the earth and gravel in the sky exploded.

And Xiaofeng Mountain is even cracked from it, half of the mountain collapsed directly, and the other half of the mountain is estimated to not be able to support it for long.

Violent tremors were heard for several kilometers.

Many soldiers suffered this sudden shock and fell directly to the ground, and even the animal legion under Ye Feng also had a commotion and panicked screams.

But these are incomparably wonderful in Ye Feng's opinion, because the more powerful the ground-drilling bomb, the better, and it is obvious that the scene in front of him meets his expectations.

He switched his possession state to the big yellow dog.

The big yellow dog, which had been ready for a long time, rushed forward and entered the forbidden area.

It started digging the soil as fast as it could, and at the same time, the hair on its body suddenly glowed red, and it directly used its ability.

After reaching the fourth order, even if the Great Yellow Dog is not known for its strength, its strength has been improved unconsciously, and each paw can easily burst out with a huge force of 15 tons.

When the ability is cast, and when it enters a state of rage, each claw can burst out with a huge force of 30 tons.

So what stood in front of it, whether it was rocks or dirt, was no different from tofu blocks, and it was easily pulled apart.

The body of the big yellow dog is constantly descending at a very fast speed.

At this moment, Ye Feng could clearly feel the corrosive energy underground, which was nearly one-tenth thinner.

This is an effect that has been difficult to inflict on hundreds of thermobaric bombs in the past.

And not only has the corrosive energy become thinner, but they have also become chaotic, the corrosive energy that used to be orderly, but now it is like a headless fly.

Obviously, the existence in the forbidden area may also be stunned.

After feeling all this, the big yellow dog quickly retreated.

And Ye Feng immediately switched the possession state to the mutant parrot, and said to Bai Yinghui: "The effect is very obvious, continue to saturate and bomb, don't stop!" ”

At this moment, Ye Feng's voice was even a little hurried.

When Bai Yinghui and the officers of Yangcheng City heard this, they couldn't help but perk up, they had been fighting with this forbidden area for so long, and at this moment they finally saw the hope of completely resolving the forbidden area.

On the missile unit's side, almost immediately after the first round of missile launches, the missile loading began.

At this time, a new round of missiles was loaded, and there was almost no delay, and it was launched again.

Woohoo blah blah!

A moment later, 30 ground-penetrating bombs swooped down and sank into the ground along the collapsed Xiaofeng Mountain.

As there was another violent shaking under the ground, this time Xiaofeng Mountain completely collapsed.

But Ye Feng didn't care so much, he immediately controlled the big yellow dog to drill into the ground, at this time, the aftermath of the shock was not over, if it went down now, I am afraid that an armored car would be squeezed and deformed.

But these are nothing to the mutated big yellow dog that has broken through to the fourth order, at most it is just a little bit of skin scratched.

After entering the underground again and feeling the changes around him, Ye Feng's pupils shrank slightly.

Because of the 30 ground-penetrating bombs that were detonated again, it seemed to make the forbidden area in a daze wake up in an instant.

At this time, Ye Feng could feel the corrosive energy around him, and he was rapidly shrinking towards a place underground.

The other party didn't hide it at all this time, so while Ye Feng used the big yellow dog to probe, he also used his spiritual power to perceive outside, and soon locked on, the place where all the corrosive energy was rushing.

That should be, the real heart of the whole penalty area.