About a month after the Battle of Jeju Island, the intelligence of the Asian branch was put on Lim Youdeok's table.

The Asian branch thought that it was difficult to directly spy on the secrets of the Yingzhou Army, so it shifted its focus to the soldiers on both sides who participated in the naval battle, and the spies of the branch stole the interrogation records of the captured officers and soldiers of the Ming Navy who fell into the water, and even opened up contacts to meet several captured officers. At the same time, the spies also visited all the taverns, **** and other entertainment places frequented by Yingzhou soldiers and junior officers who participated in naval battles, recorded all kinds of braggart remarks, and tried to extract information from them to restore the situation that night.

Their work has clearly been fruitful.

"On the night of the naval battle," Lin Youde closed the thick file, "the steering gear and propellers of the Ming ships were attacked by unknown sources, and I think this is the most important clue." ”

"Frogman?" Viola proposes her own hypothesis.

Lin Youde shook his head: "The efficiency is too high." ”

In the original time and space, many countries thought about using frogmen to deal with fleets, small and big, but all ended in failure. The main reason is that the sea is too big, the sea conditions are too varied, and the frogman troops are too inefficient. After trying it, the navies of various countries all felt that it was not good to have that kind of effort. At the end of the day, there are only some people left who see that they can't gain an advantage with conventional methods, and can only hold on to the last straw of the last one, and they are still thinking about using frogmen to break the enemy's fleet, and normal countries use frogmen as sea-to-land infiltration to carry out reconnaissance and sabotage missions.

If the frogmen could destroy the propellers and steering gears of the fleet's capital ships so effectively, then the frogmen would have been rampant in the last naval battle.

However, Viola's guess is not much different from Lin Youde's conjecture.

"I think the people of Yingzhou should have developed a practical underwater battle magic guide armor."

Saying that, Lin Youde opened the file in front of him again, turned a few pages to look for it, and then pointed to one of the passages and said: "Look here, someone witnessed a black shadow passing the stern of the ship from underwater, and from the description, this black shadow should be about the size of a truck." If it's magic armor, this size is just right. ”

"But," Viola frowned, "for the past fifty years, all of the Underwater Warfare Magic Armor has failed. ”

"I know it." Lin Youde nodded.

Unlike the failure of the magic armor floating on the water, the magic armor in the water battle will fail not because "it makes no sense to make it", but because of the real technical bottleneck.

When the Magic Armor dives into the water, its resistance to movement increases exponentially. In the case that the mental burden of the armored propulsion system on the battle queen is similar to that of the land battle battle queen, the movement speed of the underwater battle armor can be described as turtle speed, and it may not even be able to catch up with some merchant ships with fast feet, let alone battleships.

When the mental pressure of the propulsion system on the battle queen reaches the point where it is close to the flying armor, although the speed can catch up with most of the bulky capital ships, but the armor operation time is too short, and after the armor is released, the mothership itself also enters the combat range of the enemy's flying battle queen, if you consider that you want to reserve time for the armor to be used for combat, the mothership must break closer to the enemy and send out the armor.

At this time, maybe the mothership is within range of the enemy's guns.

Therefore, although various countries have been working hard to study underwater warfare armor, and have also put forward the idea of using submarines to carry these armor to approach enemy fleets, they have not been installed because they are not of actual combat significance.

"You're saying that Yingzhou has made a breakthrough in the armor of underwater warfare?" Viola looked incredulous, "I've never heard of their magic technique being so advanced." ”

"Maybe it's not a magic technique."

Lin Youde shook his head, he stood up, came to the bookcase, and took out a large folder, and the label on the side of the folder said "Yingzhou Intelligence". He rummaged through the folders and pulled out one of them.

"Over the past year, I've designated a number of research institutes that focus on penetration, including one in Wu." Lin Youde put the folder away, took the document in his hand and returned to the table, "You know, I'm different from ordinary people...... So ......"

"I know it." Viola sighed, "You don't have to stress that to me anymore. What does this institute study? ”

"Oxygen torpedoes. In another world, it was this institute that made the first oxygen torpedo in the world. This torpedo has a very long range and sails without tracks. ”

Saying that, Lin Youde flipped through the documents in his hand: "The last time we updated the intelligence of this research institute, the intelligence analysts under Hybert thought that they had a project that was close to success, and it basically coincided with the time in history...... Well, a few years earlier, but it doesn't matter. Importantly, during the Battle of Jeju Island, the Ming fleet was hit by multiple torpedoes without seeing any torpedo tracks, indicating that this torpedo had been successfully developed. ”

"So? Does this have anything to do with the Underwater Warfare Magic Armor? ”

"I think," Lin Youde touched the stubble on his chin, "the Japanese, the Yingzhou people, did not really study the magic armor of the water warfare with very high practicability, they just installed the engine for oxygen torpedoes on the existing water warfare models." ”

"Huh?"

"The range of the oxygen torpedo is particularly long, as long as the engine fuel installed on the magic guide armor is enough, it can start from a long distance and rely on the oxygen engine to propulsion to approach the Ming fleet."

Viola half-opened her mouth and glared at Lin Youde: "Is this okay?" ”

"Of course." Lin Youde shrugged his shoulders, "Actually, the effect is good, isn't it, it's just that you see here, the testimony of the survivors shows that when they were first attacked, the torpedoes that hit the capital ship were very limited and could not cause effective damage at all, indicating that these underwater battle magic armor could not carry larger torpedoes." I guess the Japanese warriors in the water were also in a hurry at the time, and finally took the risk to attack the propellers and steering gears. If it weren't for that, wouldn't it be nice for them to attack the servos in the first place? ”

"Hmm...... It makes sense, but if you just shoot the torpedo at the servo, won't it be over? Why bother to destroy it in other ways? ”

"That's a good question." Lin Youde is like a teacher praising a student, and it just so happens that Viola's appearance does look like a well-behaved elementary school girl, "The advantage of the underwater battle magic armor is that it is more durable than a submarine, and there is basically no way to take it if the depth charge doesn't hit it directly." However, it is afraid of the energy weapons of the battle queen carried on the battleship. In addition, it is smaller than a submarine and more difficult to find, although other warriors can sense its vicinity through magic fluctuations, and can also know the general direction of the road, but they just can't pinpoint it.

"This is also the reason why the Yingzhou people did not approach the ship at the beginning and destroy the rudder and propeller, and the danger of rushing close is not low. So they used torpedoes, but then the problem came, when they were in the water, the original excellent vision power of Zhan Ji could not play a role, and they had no effective means to aim, so they could only use periscopes to observe and launch torpedoes like submarines. ”

Viola tilted her head and thought for a while, and said: "Then according to what you say, although this thing made by the Yingzhou people has actual combat significance, it does not have such a great impact on naval warfare, if the attacked party understands what is going on and is ready to deal with it, this tactic will not be so effective." ”

"Yes." Lin Youde spread his hands, "In another world, they also think that the oxygen torpedo is a great invention that can change the pattern of naval warfare, but at the last time, the oxygen torpedoes that are widely carried on board are not necessarily sinking their own ships in naval battles much less than the enemy ships sunk. ”

"Huh? What's going on? Viola became interested, since she knew that Lin Youde was from another world, Viola asked Lin Youde about the various things in the other world.

"Oxygen torpedoes are not very stable, and once they are hit in a fierce battle, they will most likely cause a large explosion. Therefore, in the Pacific theater in another time and space, some Japanese captains often chose to shoot out all the oxygen torpedoes before entering the artillery battle...... Because it was too far away from the enemy ship when it was launched, the hit rate was very regrettable. By the end of the war, the Japanese would not even have the opportunity to launch oxygen torpedoes, because they could not see that the American fleet was sunk by planes. ”

Viola pursed her lips: "Combined with what you told me before, the Japanese are really a tragedy. ”

At this time, Viola suddenly remembered another guy who also knew the identity of Lu Daolin Youde and a person from the other world.

"Where's the fox?" Viola asked.

"She was still there when Hybert first delivered the dossier, and when she saw the name of the dossier, she yelled, 'I'm going to burn fat,' and ran away. probably thinks that he is also from Yingzhou, so he should avoid it. ”

"That's right." At this moment, Lin Youde always felt that Viola had something to say, but in the end she didn't speak, but sighed.

Lin Youde was wondering, Viola asked, "Then how do we deal with this now?" ”

"Looks like you're the president of Germany, right?"

"I'm not asking you what Germany is going to do, I'm talking 'we' understand?" Viola looked a little unhappy, "I've already decided what Germany should do, no matter what the people in Yingzhou say, we can just deal with the errand." ”

"How do we deal with it......" Lin Youde bit the accent on the word "we", he leaned back in his chair and looked up at the ceiling.

According to Lin Youde's previous plan, if he intervenes in Asia, he will have to wait at least until the start of the war - even before the war, Lin Youde may not have enough ability to interfere in Asian affairs, maybe the Asian strategy will have to wait until the post-war period to enter the Cold War period - whether there will be an iron curtain in this time and space for the time being.

After thinking about it for a while, Lin Youde felt that it was better to follow the established pace step by step, but it didn't hurt to do something to stumble the people of Yingzhou or something, and it didn't hurt to try.

"You say," Lin Youde looked at Viola, "how about stabbing the British with these things we just speculated?" ”