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The four high-ranking demon lords couldn't help but scold Emperor Shi Tian in their hearts when they saw that Emperor Shi Tian had used such a luxurious way to maintain a continuous output of firepower, 'It's great to use money?'

You must know that the only ability that Emperor Shi Tian has shown now is to be rich.

And it's not an ordinary rich, it's completely the kind of perverted tyrant who has so much money that he throws it casually.

So far, the number of troops lost by Emperor Shi Tian is less than one-ten-thousandth of that of the demon side.

The reason why there is such a terrifying loss ratio does not mean how powerful Emperor Shi Tian is, nor does it mean that his troops are much stronger than others, in fact, it is completely smashed with money.

Millions of super heavy artillery shells fell to the ground every moment on the three lines of light's firepower defense line, causing heavy damage to the demon legion and causing damage to their own wallets.

Each heavy artillery shell weighs 20 tons, even if it is worthless, it is also an alchemy shell?

After playing so many times for several hours in a row, if you really have to spend money to buy it, it will definitely be a sea of gold and silver.

Even the four great demon high-level lords are absolutely reluctant to use so much money to smash people.

And now it's good, Emperor Shi Tian is not only willing to throw cannonballs, but also extravagant, equipped with double super heavy artillery, and has the kung fu to change the barrel of a million super heavy cannons, how rich is this?

Seeing such a big tyrant, the four demon high-level lords could only roll their eyes helplessly, and they didn't dare to directly dispatch the elite troops.

Because they can also see that Emperor Shitian's alchemy weapons are simply endless, even if the demon side fights all the elite troops, I am afraid that there is no way to destroy all the alchemy weapons of the other party.

After all, there is only one line of defense in front of us, and there are more than ten or twenty lines of defense that have been formed behind it, and there are several lines of defense that are being built rapidly.

If this continues, the elite troops of the four demon high-level lords will have to fight for more than ten or twenty lines of defense against the opponent, but at that time, the other party is only afraid that they will build more than ten or twenty lines of defense.

Whether Emperor Shi Tian repaired the defense line or used super heavy artillery to bombard, in fact, he was just throwing money, not consuming his own elite troops.

Therefore, once the elite troops of the four demon high-level lords are exhausted, then in the face of the elite army of Emperor Shitian, they will suffer a big loss, and they are afraid that they will be completely defeated by others on the frontal battlefield.

In this case, the four demon high-ranking lords, as old treacherous and cunning people, will certainly not be easily impulsive.

As a result, the four demon high-level lords almost unanimously began to adjust their troop ratio, withdrawing more than 9 percent of the high-level troops above the silver level in the front-line troops, leaving less than one percent, mixed with many cannon fodder troops, and continuing to put pressure on the front line.

As for the elite troops saved, all of them were slowly scattered in the rear, slowly consumed, and never used lightly.

As for the cannon fodder troops, it was too simple, the four demon high-level lords simply opened countless abyssal plane portals in the rear, and sent all those cannon fodder in their own territories.

At the same time, the four high-ranking demon lords also ordered their own territories to start a comprehensive search for cannon fodder troops, and they all came over as cannon fodder.

Anyway, for the Abyss Demon, those demon cannon fodder troops that automatically appeared in the territory were like crops, cutting stubble after stubble, and there was no need to feel distressed at all.

The four demon high-ranking lords were all secretly mocking Emperor Shi Tian in their hearts at this time, and they all felt that it was definitely worth using the worthless cannon fodder in their own territory to consume Emperor Shi Tian's priceless link weapons.

In short, the four demon high-ranking lords all coincidentally formulated this kind of consumption plan, wanting to completely drag down Emperor Shitian.

Anyway, for the four demon high-level lords, time doesn't matter, and cannon fodder is endless, so there is no pressure at all to carry out this attrition tactic.

Although the tactical adjustments of the four demon high-level lords were secretive, Emperor Shi Tian was not a vegetarian, and he quickly saw through it.

After all, the sharp decrease in high-level demons above the silver level is an obvious thing after all, and it can't be hidden from people at all.

However, although there are fewer high-level demons, the cannon fodder troops have not only not decreased, but are still surging, and each time it is a piece of black pressure, like a tsunami rushing over.

Then under the baptism of the three fire blockade lines, more than half of the cannon fodder troops were killed, and thirty percent of them were injured and affected their combat effectiveness, and the remaining two layers were also lightly wounded who could barely maintain their combat effectiveness, and there were almost few demons who passed through the fire blockade line intact.

However, since the number of demons was too large, even if half of the reduction was carried out, the remaining ones would still cause great trouble to Emperor Shitian.

The low-level cannon fodder demon didn't have to consume a large amount of weapons and ammunition of Emperor Shitian, and he also drained all the mines on the ground.

The most important thing is that although they didn't cause much harm, they attracted most of the firepower, creating opportunities for those high-level demons to make a move.

And these high-level demons are not vegetarians, they began to put their main attack targets on the city walls under the hint of the four high-level demon lords.

After all, the city wall is several hundred meters high, and it is not easy to climb up, rather than climbing up and being knocked down by others before you have time to do it, it is better to simply attack the city wall, at least it can cause damage.

In fact, although the city wall temporarily built by Emperor Shi Tian looked very magnificent and had been strengthened by alchemy runes, the defensive power was also bronze after all.

Basically, as long as the demon above the silver strikes the city wall to cause a certain amount of damage.

Especially after destroying the rune enhancement layer on the outside of the city wall, the material inside is just ordinary stone.

As for ordinary stones, not to mention high-level demons above silver, even ordinary black iron and demons can cause a lot of damage.

So soon, the bottom of the city wall was destroyed by the demons.

Especially those little demons, their sheer numbers and swift movements, made many of them pass through the blockade and eventually rush to the base of the city wall.

Then they can use their sharp claws to start scratching the city wall frantically, ordinary stones can't stop their sharp claws equivalent to alchemy enchantment, it's just like digging tofu, a claw down is a big piece.

Under the frantic scratching of many little devils, the city wall a few hundred meters later could not withstand it for too long.

Even the defenders at the head of the city responded, constantly throwing grenades and other explosives from above to interfere, and even released a lot of spells.

They did inflict a lot of damage on these people who were destroying the walls, and even killed them in pieces.

But helplessly, in the face of a steady stream of demon reinforcements, their blocking was not so effective, after all, there were still many demons who caused damage to the thermal city wall.

Especially those gold-level big guys, there are many masters among them, and they are especially good at destroying the city wall, as long as a gold-level spell passes, they may even directly penetrate the city wall of several hundred meters at times.

Anyway, more than ten hours after the start of the battle, the originally gorgeous and majestic city wall was like an apple that had been gnawed several bites by a dog, especially the root of the city wall, which was destroyed in a mess, and there were even many places where there were holes in the cracks, so that the demon could directly pass through the city wall.

However, these rifts are not big, and there is still Emperor Shitian's mobile troops in the rear to defend, so the demons that rushed over were eliminated without causing any damage.

But after all, they still caused a lot of trouble, especially the demons began to be unscrupulous about the destruction of Chang Chang.

After seeing this situation, Emperor Shi Tian was also helpless for a while, and finally could only choose to give up this city wall.

In fact, if you continue to persevere, you can last for five or six hours, or even longer.

But in that case, Emperor Shitian's troops would definitely suffer greater losses, and the troops on the front line might not be able to retreat in their entirety.

Therefore, in order to reduce the loss, Emperor Shi Tian had no choice but to give up this city wall.

But the tens of millions of troops on the city wall are not withdrawn if they want to, and if they are not careful, the evacuation will turn into a rout.

As a result, Emperor Shi Tian made a detailed evacuation plan in advance.

The first to retreat was definitely the heavy super heavy artillery, which were all floated in the air with the help of high-level mages, and then pulled by the air troops, and soon flew behind the second wall.

Then some of them will stay behind to replace the damaged guns, and another part will be transported away and replenished to the rear lines.

After the super heavy artillery is sent away, it is all kinds of heavy weapons on the city wall, which are generally alchemy artillery, they board the flight module, and walk while firing the cannon, and they can continue to cover for a period of time.

The last to evacuate are the Minotaur Lancers and Goblin Gunners, who also have to board the Flying Module and fire as they fly to suppress the demonic forces that have climbed the walls.

Thanks to the large number of air forces to help, the evacuation went very smoothly, with only a few flying modules destroyed by the high-level demons, but most of them were evacuated safely.

The four demon high-ranking lords couldn't help but smile smugly when they saw that they had taken out a line of defense.

But alas, they didn't laugh long before they almost cried.

Because, just when the troops under their command were triumphant and kept showing off on the city walls.

A series of earth-shattering explosions suddenly sounded, and then the million-kilometer-long huge city wall was blown to pieces and completely razed to the ground in the blink of an eye.

Obviously, Emperor Shi Tian's guy was premeditated, and when he built the city wall, he placed a large number of bombs in the core of the city wall, the purpose was to pit the other party fiercely when he left, not to mention, at least this first time was trapped, God knows how many demons died in this super explosion.