PS: I wish you all a happy new year!

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In the world of this plane, the sonar and submarine mute technology of the Germans are second only to China.

War is the most effective way to promote the development of science and technology, and German submarines suffered from sonar as early as the end of World War I. At first, they really didn't expect that sonar could be used like this, but it didn't take long for them to find the reason. We all know that there will be a big difference in IQ between individuals, but there will not be much difference between collectives, and a new weapon will be able to be powerful when it first appears, but it will not be long before someone will find a copycat method or a means of dealing with it.

And when these new weapons show up, the opponent's reaction is mostly just "Oh, that's how it is!" or "Damn, this thing can still play like this?, why didn't I think of it!", rather than "How could it be?". The same is true for the Germans for sonar.

Sonar is not a tall thing, it has appeared in the nineteenth century, but the technology at that time was not at the level of similar products in later generations, and the original purpose of this thing was not for anti-submarine purposes. In the past, the Germans did not know that they had suffered so much? How can they say that they are also an industrial power, and there is no shortage of scientists in this field.

The Germans had already woken up to the end of World War I and immediately began to study sonar, but they started too late to catch up with the First World War. After the end of World War I, the Germans put a lot of effort into researching this aspect, and it didn't take long for them to come up with mature products, and there were several kinds of products, such as those used by shore defense bases, surface ships and aircraft, and submarines themselves.

With this kind of thing, their submarines no longer have to stick out the periscope to scout at any time, which reduces the risk of exposure. And they were also inspired to improve their submarine design, and how to reduce the noise of the submarine became the most important job of their submarine designers. They have made a lot of achievements in this regard, and the fact that they are able to crouch outside Scapa Bay in a big way is the best proof of this.

Of course, happiness is all comparative, and if you compare it with China, their little achievements are not worth mentioning. The Chinese submarine followed them for several days, and at the nearest time it was less than a kilometer away from them, and from the point of view of the warship, this was already called a close tail line, but the Germans were still at a loss. And their every move is under the surveillance of Chinese submarines. There is no way, the noise of the Chinese nuclear submarine is so small that it is already about the same as the background noise of the ocean, and it is difficult to distinguish it with the technology of the Germans.

That's the gap!

However, these techniques of the Germans were enough to deal with the British. Before the British warship had sailed out of Scarpa Bay, the German submarine had already detected it through sonar.

Colonel Helem-Simi, of course, did not know that there was a large crowd of spectators watching, and he had always thought that he was doing a very hidden job. Among these onlookers, there are nuclear submarines crouching nearby, the military center of the Tiangong-1 space station group in the distance, the naval command and general staff headquarters in China, and even the command of the Indian Ocean Fleet are watching the live broadcast.

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HMS Royal Oak Bridge.

“...... The Germans dared to provoke war this time, which was a contempt for the whole civilized world, and Monsieur Hitler may have thought that if the Maginot Line was broken, all would be fine, but unfortunately things did not go as smoothly as he thought...... We, the British Empire, want them to know that the Germans may be able to decide when the war will begin, but when it will stop, it is not up to them to decide!"

The TV on the bridge was broadcasting an interview with Admiral Qiu Fatzi on BBC television. After returning to power in 1930, Qiu Fatzi, who had been disgraced in World War I, first served as colonial minister, and this year he became the navy minister again, and retook charge of the Royal Navy. At this time, Qiu Fatzi was talking eloquently in front of the camera, looking high-spirited.

"This dead fat man can only brag!" Major General Greenham pouted, not hiding his contempt for Fat Qiu, even though Fat Qiu was theoretically his immediate boss.

Like many in the Royal Navy, Greenham didn't have any affection for the bombastic dead fat man. Most officers and soldiers hated Qiu Fat Man because he had two consecutive defeats in Jutland and Corsica during his tenure in World War I, but Greenham was different, he knew that the reasons for those two fiascos were complicated, and Qiu Fat Man could not be blamed. Greenham's dislike of the fat man is just a kind of contempt for politicians by the military, just like the insiders in other industries look down on their lay bosses.

"Your Excellency, Sir Forbes is calling......" At this moment, a staff officer came with a telegram.

The telegram was sent by Admiral Charles Forbes, commander of the Home Fleet and a top boss of Greenham. He hurriedly took the telegram and it seemed that Forbes said in the telegram that he had just received the latest information that Denmark had announced its accession to the Allies this morning.

In other words, Jutland was already under German control. And the German high seas flotilla had already left Wilhelmshaven last night and is now missing. According to German spies, the Germans were likely to attack Norway, and Forbes estimated that the German fleet might cooperate with the army, so it was likely to sail in the direction of Norway. Therefore, Forbes ordered Greenham not to go to the vicinity of Jutland and immediately divert to Norway.

"Well, I see......" Greenham nodded, and immediately issued an order, and the First Fast Fleet turned to Norway as soon as it left the port.

"Order the aircraft carrier detachment to take off reconnaissance planes and direct cover aircraft ......" At the same time, he did not forget to order the aircraft carrier to release carrier-based aircraft. He didn't expect the three Valiant aircraft carriers to be the main force of the attack, as long as they could detect the enemy and provide air cover for the battleships, they would be considered responsible.

Of course, now they are still in the protective circle of land-based aircraft, and there is no need to rush too much.

Anyway, now the British are not in a hurry, Shetland Islands have returned to the British after the war, although later because of the Washington Treaty, it was forbidden to expand and add new fortifications, but after the expiration of the treaty for more than three years, the British here desperately repaired turtle shells, by this time although there are still many facilities not completed, but the British have also built a sea fortress.

In other words, the bathtub in the North Sea was already in the hands of the British, and the Germans, no matter which way they went, could not avoid the British interception. Needless to say, the English Channel to the south is not to mention, unless Erdezi has a brain cramp, he will not choose this path. The Shetland Islands to the north were also a key British defence, and Scapa Flow, the main base of the Royal Navy, was right next to it.

The Germans are also well aware of this, so it's no wonder they're going to go after Denmark and Norway. As long as Norway is controlled, then the German fleet can swagger around the Shetland Islands and take the northern route into the Atlantic, although it is a little farther, but it is safe.

At this time, the latest information came again. The intelligence said: Half an hour earlier, German planes had just attacked Norway and spotted a large number of German ships off the coast of Bergen, and it was clear that the Germans were about to land here. Oslo was closer to Germany, but the Norwegians were not fools, and they also laid a relatively tight defensive line here, but in the direction of Bergen they were lax.

"Stupid Norwegians, who made them refuse to join the Entente, are now being beaten by the Germans, what a misfortune they deserve!" said Greenham gloating.

"Buzz ......" an anti-submarine patrol aircraft skimmed the fleet from low altitudes, this is the Scapa Bay base aircraft, mainly responsible for anti-submarine patrols in the vicinity, during these months of tension, the number of anti-submarine patrol planes here has increased to more than 40, divided into six shifts to patrol the vicinity.

"I wish you all the best on the journey!" the anti-submarine patrol aircraft gave a light signal to the fleet.

"Thank you!" the Royal Oak replied with lights, and the sailors on board waved at the plane.

In World War I, Britain had enough of submarines, so after the war, they worked very hard to develop anti-submarine technology, in their own opinion, the current anti-submarine technology is enough, at least in many exercises, have successfully found submarines and destroyed them. But the road is a foot high, and the submarine technology of the Germans seems to be superior. Now the British are not aware of the fact that the nearby German submarines are a good illustration of this.

There is no way, although the British have also developed anti-submarine sonar, they only have models for ships, and have not yet developed sonar buoys for aircraft. Of course, we all know that the opium cow has always had a big brain. No, they put the recently invented anti-submarine radar on the plane. However, this initial radar technology is very immature, although it can detect submarines floating on the surface of the sea, but if the submarine only shows a periscope or snorkel, this radar will be difficult to find targets. That is, their anti-submarine aircraft now also rely mainly on "human radar" - visual inspection to detect submarines.

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As soon as the British fleet sailed out of the port, it turned in the direction of Bergen, and their movements were completely detected by German submarines.

"Hahahaha, the British did go in the direction of Bergen. Well, according to the original plan, lay water torpedoes on their course!" Helem-Simi ordered.

Soon, the flagship submarine U-1166 issued a communications sonar, conveying Colonel Simi's orders to the other submarines.

Although the anti-submarine technology of the British could not detect the submarine sitting on the bottom, they could still detect it once the submarine was activated, so Simi did not want to risk being sunk and directly attacked with a submarine. This time, he used a new weapon developed by Germany - a water torpedo. Or also called torpedoes, in short, it is a new gadget that combines the characteristics of torpedoes and mines. This was also developed by the Germans after obtaining samples of Chinese acoustic guided torpedoes, otherwise it would be impossible for traditional direct-to-sail torpedoes to be turned into water torpedoes.

This time, Colonel Simi led all mine-laying submarines, none of which carried only six torpedoes, and the others were all water torpedoes. As the order was issued, sixteen German submarines opened their minelaying hatches one after another, and like hens laying eggs, they released a series of water torpedoes at intervals of 500 meters.

After the submarines had silently finished laying mines, they turned around and evacuated the scene. Behind them was a minefield of tens of square kilometers.

At this time, the British fleet continued to advance without noticing, and Greenham ordered the speed of the ships to be increased to 25 knots, hoping to find the German fleet sooner and complete the great cause of revenge earlier.

Although now Germany's high seas fleet is unusually strong, second only to the United States in tonnage, it is precisely when the German navy has ever been the most powerful. But the officers and men of the Royal Navy were not afraid at all, and they were full of confidence and conviction of victory. In the Anglo-Spanish naval battle and the Anglo-French naval battle, Britain was also inferior in the number of ships and tonnage, and the gap was even greater, but in the end, it was the other party who hit the street, and the British had the last laugh.

Although the German High Seas Fleet is very strong, it is only a little more than the home fleet of the Royal Navy, and the gap between the Anglo-Spanish naval battles and the Anglo-French naval battles is completely incomparable. After all, in the Washington treaty system, China, the United States, Britain and Germany are all from the first gear, and the shares are the same, and they can't play much. Although all countries are building after the treaty, after all, the time is still short, and the gap has not yet widened, well, except for the pervert of the United States.

Greenham saw that the new intelligence sent showed the specific model of the German ship. The German fleet off the coast of Bergen had two Bismarck-class and two Prussian-class. He smiled and said: "Our Royal Oak class can completely compete with the German Bismarck-class and Prussia-class, even if the main force of the home fleet behind us does not come up, we can kill them......"

"Your Excellency, I now feel that the Germans are acting a little erratically, and it is better for us to reduce our speed and move forward in anti-submarine formation......" said the Chief of Staff, Colonel Schiller.

Greenham shook his head: "Don't worry about the Germans' submarines, our anti-submarine sonar is not an ornament, there are so many planes in the sky......"

Although Schiller had the heart to argue, he had no evidence, opened his mouth and didn't know what to say, and finally he could only sigh.

At that moment, a dull explosion was heard in the left rear, and a column of water rushed up from the side of the USS Brave. The Brave's speed slowed down all at once.

"What's going on?" Greenham was startled and quickly raised his binoculars. I saw the Brave going around in circles, and the officers and men on the ship were busy.

"Your Excellency, it could be a mine!" said Colonel Mars, the captain next to him.

"Well, I think it's like, stop moving quickly, we might be in a minefield, damn the Germans, they dare to mine the main channel! These ****** elements......" As soon as Greenham finished speaking, there was another loud bang from the destroyer Hylam not far away.

This large destroyer with a displacement of 3,000 tons seemed to have been kicked by someone, and the bow of the ship suddenly rose high and was almost thrown off the water, and then it made a sore cracking sound, and only in front of the eyes of thousands of officers and soldiers, it broke into two and sank into the sea!

This was only the beginning, and before the British officers and men could react, explosions rang out in the fleet, and thick columns of water rose one after another.

"It's a torpedo! a lot of torpedoes!" a lookout screamed.