As the closest planet to the star in the solar system, Mercury once served as a platform for energy harvesting stations during the ancient human period. In addition to collecting solar energy efficiently, the "Avalon" placed in the interior of the planet can also act as a stance generator to build a defensive barrier for the entire planet.

This incomparably powerful defense capability is regarded by the British royal family as the last "means of preserving life" of the country, and it must not be used lightly until the moment when the country is on the verge of extinction.

The vaunted Great Britain thought it might never use it, but now that the Germans were on the way, everyone had to admit that the fate of Britain was in danger!

At this time, the German fleet was still hiding in the no-war field of the projection area, waiting for the Gustav cannon to be recharged, while the British fleet guarding outside could only grit its teeth and stare dryly. Although they can fire outside the field of the Forbidden War, once the conventional armor-piercing projectile flies into the territory of the Forbidden War, the assimilated armor-piercing cone of the warhead will be ineffective, and it will not be able to effectively penetrate the defensive position.

The Germans also understood this, and appeared to be unscrupulous in the field of the forbidden war. Especially those "veteran ship girls" who participated in the First World War, they are simply raising their eyebrows!

"Hahaha! Goeben, look at the deflated virtues of those Englishmen, it's really relieving! ”

"Yes! It's a pity that Sister Frilinger's head is gone......"

"I think it's a good thing that my eldest sister isn't there. If you let her see what Hindenburg looks like now...... Never mind! Don't talk about that, who made us all weapons! ”

Looking at the Gustav cannon not far away, which was guarded by four Caesar-class battleships, Moltke and Goeburn, who were in the battle patrol mobile unit, were embarrassed.

These two sisters and the three De Fleeter sisters are all old comrades-in-arms of Germany during the First World War, among which Moltke also participated in the famous Battle of Jutland with De Fleeter and Lützov, and joined forces to beat the "big crispy" of the British battle patrol formation, and their relationship with each other can be called "iron sisters"!

But now the eldest sister and second sister of the three sisters of the Flinger level are no longer there, and although the divine core of the third sister Hindenburg has been activated again, because of the assimilation of a cannon, the memory of the previous life has disappeared. Whenever Moltke and Goeburn saw Gustav's familiar and unfamiliar face. It's not a good taste in my heart.

But they have experienced the baptism of war and fiasco, and they also know that there is no way to do it!

After nearly 2 hours of staring at each other, Gustav's charge was finally completed, and he had to go outside the Forbidden War in order to open fire. Hitler's expectation for this cannon was to slap the planet Mercury and directly wipe out an English city, helping these arrogant Britons to regain their awe. It would be even better if we could piggyback on some of the British capital ships with their mantis arms as cars!

But the British fleet would not watch the invaders attack their homeland, let alone line up in a straight line for the other side to "cut through". Taking advantage of the time when the opponent was cowering in the forbidden war field, the British army had calmly set up a formation and set up a covering formation.

This formation is a thin layer though. It is easy to break through, but it is convenient to exert firepower and form a three-dimensional bullet rain cover. And this formation also minimizes the threat from the cannon.

After experiencing the panic of the last battle on Venus, the British sent a large number of elite agents to deal with this superweapon. Although it was unsuccessful, it hindered the progress of the repair, and it was discovered that the cannon could not be fired continuously. Every time a shot was fired, it had to be returned to the factory for overhaul, which made the British army breathe a sigh of relief.

For the British, the goal of the battle was to stop the cannon from firing. Or find a way to get her off. If it fails, Britain may not be completely destroyed by this cannon, but the frightened people will think that their own army is no longer capable of protecting them.

And if the people's hearts are broken. The country will not be able to sustain itself.

Therefore, as soon as the German fleet was about to come out of the projection area, the British fleet was immediately ready to concentrate fire on the huge artillery, and it was imperative to inflict heavy damage on this biggest threat at the first opportunity.

But the battleships that had caught the British attention did not expect it all, just when their attention was focused on Gustav. Nearly a hundred torpedoes suddenly appeared silently from behind them. Some of the battleships reacted quickly and dodged the torpedoes, but some were slow to react and were hit on the spot.

The damage caused by this sudden lightning strike to the British army was not significant. Only a few light cruisers and destroyers of small tonnage were sunk, but the sneak attack disrupted the British position. Taking advantage of this brief chaos, the German army, which had been prepared for a long time, quickly came out of the forbidden war zone.

Long before the arrival of the main German army, Vice Admiral Dönitz, the commander of the submarine force of the German Navy, had secretly sent more than a dozen U-boats to Mercury. After smuggling into the Mercury area, these submarines carefully lurked in the shadow of Mercury until the German offensive was about to begin.

Their role is to surprise the British Grand Fleet from behind, not seeking to achieve many results, as long as they can create chaos for the other side.

As soon as these submarines were successful, the mobile units on the German side, mainly four battle cruisers, immediately launched a charge, directly and violently broke through the British line, and approached in the direction of Mercury. The British patrol who discovered their attempt quickly turned around and launched a pursuit, and immediately led away a group of British high-speed ships.

On the other side, the Gustav cannon, which had been fully charged, flew out of the forbidden war field under the close protection of five battleships, and the muzzle of the gun was aimed at one of the limited lands on Mercury.

This shot is not the goal of killing the British, it is to scare them to death!

As soon as Gustav left the forbidden zone, he began the final "cannonball activation", a process that could only be carried out externally because it would be judged to be an offensive act, and the task of the rest of the German warships was to protect Gustav at all costs during this time.

Seeing this, the British naturally could not let them succeed, and the capital ships led by Nelson and Rodney immediately set off. Even if you can't stop the other party from firing, you have to hit her off the rails!

The capital ships of both sides soon converged, and although the Germans were inferior in quantity and quality, they were more than capable of resisting for a while with their sturdy and durable hulls. It's like they're playing rugby, and they're bumping into each other.

Although the British army was high-spirited, their opponents were not weak, and both sides suffered damage under a scuffle, but Gustav, who was heavily protected at the core, only suffered a few minor injuries, and the British troops who fought bravely finally failed to stop her from activating the shells. I could only watch as the opponent's dark cannon chamber flashed with a dazzling and deadly purple light!

With the final end of this light, a terrifying beam of light erupted from the muzzle of Gustav's 8000mm gun, reducing all the British and German warships in her way to ashes.

But just when the British officers and soldiers were in despair, there was a change in Mercury!

Another pillar of emerald green light suddenly rose from Buckingham Palace, and upon contact with the wall of the realm, it quickly infected the invisible barrier with the same emerald green. The beam of light that Gustav fired quickly dissipated into invisibility upon touching the emerald green walls of the realm, leaving only ripples in circles on the barrier

After witnessing this astonishing scene, the fleets of both sides on the battlefield were stunned on the spot as if they had been immobilized. The fleet commander on the German flagship, the Baden, stared blankly at the beautiful green screen, and the voice of an observer stammered over the communicator.

"Division, Commander! We...... We failed to penetrate their armor. (To be continued......)

PS: PS: Here's a little bit of fictional background about the Goburn, which was hiding in Constantinople during World War I and was given to the Turkish Navy as a diplomatic bargaining chip. After the war, Weimar Germany, out of "feelings", hoped to "replace the old with the new" and build a better war cruiser from Turkey in exchange for the Goeben. In fact, it is an excuse for German shipyards to start building large ships, so as to practice their skills to avoid talent disconnection. Therefore, the Goeben, who returned to the battle sequence of the German Navy, often dressed like a belly dancer.