In a blink of an eye, 6 months have arrived. Emperor Shi Tian should start the battle at the front line of the Battlefield No. 0 as agreed.

But in fact, Emperor Shi Tian used his special authority to send a large number of troops to the No. 0 War Zone four or five months ago.

However, these troops did not go directly to fight, but began to build defensive buildings behind the front line.

At the same time, Emperor Shi Tian also asked the Angel Branch Dean to buy enough time for this army.

For this reason, the dean of the Angel Branch had to dispatch heavy troops on the front line of the No. 0 War Zone. At a very heavy price, he barely delayed the attack of the four high-level demon lords, and won several months of precious time for Emperor Shi Tian's troops.

If someone else dared to make such a request, the dean of the Angel Branch would have probably been blown up long ago. For the past few months, the official troops of the Heavenly God Academy have paid hundreds of millions of combat troops, and even several sage-level masters have died.

However, after seeing the situation on Emperor Shi Tian’s side, the director of the Angel Branch gritted his teeth and insisted on it. Under the tremendous pressure from all aspects, he successfully fulfilled Emperor Shi Tian’s request.

The reason why Emperor Shi Tian was able to win the trust of the Angel Branch was because his actions were extremely huge, which gave people a sense of trust at first glance.

For this action, Emperor Shi Tian also took the initiative and basically sent out all the earth-type monks in his hands.

After so many years of training, there are millions of earth-type monks in Emperor Shi Tian’s hands, and they all have the most treasures like the earth spirit beads.

After they arrived at the Zero War Zone, they immediately began to build defenses according to Emperor Shi Tian's orders and plans.

First of all, a huge city wall that was several hundred meters high cut off the entire No. 0 War Zone in half, reaching a length of one million kilometers! It can be said to be a miracle!

If it weren't for the help of many earth-class monks and earth-class mages, this city wall alone would have taken countless years to build.

But now, under the tough order of Emperor Shi Tian, ​​all the earth-type monks have been killed, squeezing out the last trace of magic power, and then constantly replenishing by taking magic potions.

In the end, it took more than ten days to build this magnificent city wall.

While these earth-type monks were building the city wall, tens of millions of counted dwarf warriors were also dispatched at the same time. Their mission was to spread various simple landmines forward along the city wall and spread them hundreds of kilometers away.

In other words, this minefield has a depth of hundreds of kilometers, which can definitely allow the invading demon army to have a good drink.

And this is just the first line of defense. After the construction is completed, everyone will immediately move back 100 kilometers away and then continue to build the second line of defense.

At the same time, the first line of defense has also begun to be formally deployed.

This time, Emperor Shi Tian and his staff also racked their brains to defend the city wall.

There are naturally a large number of long-range weapons on the top of the city wall, and all kinds of long-range alchemy artillery fires are available, and the density is very high.

But these are not the most important ones. It is really the weapon that Emperor Shi Tian used as the mainstay as the killer weapon, and it is the large number of super cannons arranged more than ten kilometers behind the wall.

The so-called super cannon is a new weapon developed specifically for this war by Emperor Shi Tian. It is 60 meters long and has an astonishing caliber of 1,200!

That's right, the caliber of 1200 mm is really a bit crazy for the cannon that fires physical shells.

And such a caliber is not formulated casually, but based on shells.

This time, Emperor Shi Tian simply stopped asking ordinary people to install shells, but instead focused on the giant troops he had trained for many years.

An average giant can have up to 100 tons of strength when his arms swayed, but obviously he cannot let them all exert all their strength every time. In that case, they will quickly fall into a state of fatigue.

So according to the power of ordinary giants, 20 tons is a very suitable weight, which allows giants to recharge continuously. After blessing some spells that increase endurance, they should be able to work continuously for more than half an hour.

So Emperor Shi Tian designed a new alchemy shell according to the standard of 20 tons.

No shell casing is needed. If it is just a warhead, 20 tons will cost about 1,200 in diameter. This is the origin of the caliber of the super giant gun!

Finally, Emperor Shi Tian asked the range of the super cannon as far as possible, and at least 200 kilometers away.

The range of the cannon is related to its length. In the end, Emperor Shi Tian determined the limit of 60 meters, which could allow the super cannon to have a terrifying range of up to 300 kilometers.

Of course, the super cannon is a mass-produced, low-priced, and low-tech temporary weapon, so after having the caliber and range, there is no way to guarantee accuracy or something.

According to the tests under Emperor Shi Tian, ​​the error skew of the super cannon can reach more than 2 kilometers at its farthest range.

This means that you can hit a goal of 4 kilometers in size, but if the goal is not that big, it depends on luck.

Fortunately, the super giant gun has a large caliber and a large loading capacity, so the power and range of the explosion are also very terrifying.

It is estimated that the shells of the super cannon can accommodate up to 12 tons of alchemy gunpowder. After being stimulated by the primary magic circle, the terrifying power they burst out is enough to instantly kill most of the golden troops within a range of 50 meters.

Most silver varieties can be killed within 200 meters, bronze can be killed within 500 meters, and even the black iron troops within 800 to 1,000 meters can basically be killed or injured.

With such a terrifying explosion range, accuracy is not that important.

The most important thing is that the super cannon will have a massive number and a good launch speed, which will form a terrifying barrage at that time, directly submerge any demon army that dares to offend the defense line.

However, if you want to make massive super cannons, you will definitely not be able to use good materials.

In fact, most of the volume of the super cannon is just bronze-level metal, only the inner wall of the cannon barrel is silver-level, and a gold-level metal magic array is attached.

This can greatly reduce the cost of the super cannon, and also reduce the manufacturing difficulty and manufacturing time.

Especially the massive number of people, using the Gate of Truth and Metal Control can quickly and quickly create the inner wall of the gun barrel, saving Shi Tiandi a lot of time and costs.

As for the other parts, the ordinary alchemy factory in Shi Tiandi can be completed.

At this time, we can see the benefits of Emperor Shi Tian’s large-scale industrial system. Whatever you want to do can be quickly and massively manufactured.

Not only is the super cannon, but even the shells are also the case.

In order to make massive shells as fast as possible and cheaply, the shells of the super cannon are also designed to be extremely cheap.

There was not even much magic metal used, the main body was ordinary steel, but the outer magic array was made of bronze-level magic metal.

The most valuable part of these shells is the alchemy gunpowder inside, but the main body of this thing is arcane dust, a magic material simply refined from magic water.

Just with the magic water that Emperor Shi Tian has used to measure, it would be too easy to create arcane dust.

Under such circumstances, after the super giant cannon was successfully developed, Shi Tiandi immediately had countless cannons and shells manufactured with just a command.

Especially the manufacturing of shells is extremely simple and fast.

Barrage Ji stopped all her production lines for missile manufacturing and turned to producing such low-level shells, with thousands of shells coming out almost every moment.

This kind of shell, both in size and technical content, is much lower than that of missiles, so the production speed is faster than that of missiles, and I don’t know how many times it is.

In short, in just a few days, a huge number of shells almost filled the empty warehouse.

So much so that the shells later had to be piled up in the open air.

Fortunately, Emperor Shi Tian’s country and country are large enough, and it doesn’t rain, so he can hold it, otherwise it would be a troublesome thing.

When setting up defenses, Emperor Shi Tian’s terrifying industrial production capacity dared to reveal his cruel side.

Behind the 1 million kilometers of defense line, a super cannon is arranged every few hundred meters.

Not only that, each super cannon is also equipped with a total of 10,000 shells.

This 20-ton shell is several meters high, and the giant has to hold it in both hands to move.

10,000 giant cannon shells were placed vertically, forming a steel forest.

And such a steel forest is one every few hundred meters and stretches for millions of kilometers. God knows what a terrifying number it is.

But this is just the beginning, because a mere line of defense is impossible to withstand the attacks of the four high-level lords in any case.

So Emperor Shi Tian just hopes that this line of defense can consume more of the opponent's troops.

And take advantage of the opponent's terrible casualties to greatly reduce the opponent's attack speed.

For this reason, Emperor Shi Tian did not hesitate to build the second, third, fourth, and even the tenth and twenty lines of defense behind this line of defense.

In fact, Emperor Shi Tian himself didn't know when he was the end. He just gave an order that he had to complete a line of defense every 15 days. After the repair, he would continue to repair 100 kilometers behind, and he didn't know when he would stop.

Just after the defense line is built, the super cannon and the matching shells will arrive as soon as possible. Anyway, this thing really needs as much as it needs.

Seeing this situation, almost part of Emperor Shi Tian’s plan was exposed at this time, which was to use these lines of defense to continuously delay the attack of the demon army.

The consumption of massive shells is exchanged for the opponent's vitality, and it is impossible for them to advance quickly.

Moreover, the front line can be thrown away, but the super cannon behind the line cannot be thrown away at will. After all, it is difficult for such a big guy to create, and it is also very expensive.
Chapter completed!