"Wow, this submarine is so cool, it's so cool!"

"Yes, yes, it's so awesome. It's just like the submarine we used to be in the sky and the underground, and it's incomparable!"

"Our chief is still very powerful. You can get such an advanced submarine. It's awesome!"

"Brothers, the chief officer looks down on us. He just got good things and distributed them to us. We can't let the chief officer down!"

"Please rest assured, brothers will be cheered up and ensure that this trip will be full of loads!"

After two or three months of training, Luo Faren and others finally understood the performance and temper of the xxi submarine. They had long been deeply fascinated by this new and powerful submarine and could not put it down.

Holding a hammer in your hand will naturally go all over the world to find nails.

After finally enduring it, they can finally drive a powerful new submarine to attack freely. Luo Faren and others were naturally so excited that they screamed, and were extremely eager to make achievements and show off their operations.

Before this, although there were many other submarine models in Myanmar and Shandong, Yang Fan repeatedly asked the submarine troops to focus on despicable development and were not allowed to attack without orders.

Even if they are ordered to go out to perform tasks, they are mainly engaged in training and do not stipulate any mandatory attack tasks. Instead, they are allowed to perform freely and wait for opportunities to target those Japanese transport fleets that do not have any protection capabilities.

This is definitely not because Yang Fan wants to be abusive to the Japanese Navy, but because of the butterfly effect of current time and space, Japanese radar technology has begun to develop a long time ago, and its radar level is far beyond that of another time and space.

The rapid development of radar technology has also greatly enhanced the anti-submarine methods of the Japanese army. If there is protection of escort warships, the success rate of attacks by the old submarines of the Hu Ben Army will be very low and the risks themselves will be extremely high.

Even if you try your best to kill a few Japanese ships, you will basically not be able to escape.

After all, these old-fashioned submarines are not real submarines at all, and they have to risk their lives every time they attack.

Especially when the other party has anti-submarine ships, it is simply a one-time transaction that kills one thousand enemies and damages oneself.

Yang Fan has never been reluctant to do this suicide attack, not only because he knows the entire historical trend and knows the development trend of the system technology tree.

More importantly, as a modern person, Yang Fan cannot treat his fresh lives as war games on the sand table or as a group of consumables that can be discarded at any time.

Therefore, without any need and without the need to fight head-on, Yang Fan would never let his troops fight with the Japanese fleet and exchange consumption ratio.

In fact, the same is true.

Germany, the country that used submarines in World War II, was the first country that used submarines to be used in a superb way. Its wolf pack tactics caused a lot of hardships in the Allied Navy.

In addition to Germany, the United States is another country that takes the functions of submarines to the extreme.

Because it perfectly cuts off Japan's maritime traffic lines, it is worth mentioning that the number of officers and soldiers of the US submarine force accounts for only 1.6% of the navy's strength, while in the protracted blockade battle, its record accounts for 54%.

After the outbreak of the Pacific War, the United States had a total of 43 submarines in the Asia-Pacific region. Compared with more than 60 large submarines in Japan, these U.S. submarines had problems such as small tonnage, insufficient range, and low torpedo power.

In the early days of the war, these submarines launched 31 attacks on Japanese warships, troop carriers and cargo ships, firing 66 torpedoes, but only sank three cargo ships.

After the Battle of Pearl Harbor, Nimitz became the commander of the Pacific Fleet. He was a submarine commander, so he had a deep understanding of the strategic role of submarines.

He focused on the use of submarines to destroy Japan's maritime transportation lines as his main task. The specific tactic is free hunting, which is very different from the German wolf pack tactics.

Nimitz's move made the submarines achieve fruitful results. In 1942 alone, American submarines patrol 350 times in combat and sunk 180 Japanese ships, totaling 725,000 tons.

In contrast, although the Japanese Navy has relatively advanced submarines, its mission is unclear and its achievements are very limited.

After achieving the record, the US submarine force became more and more confident in fighting. With the assistance of the radio and intelligence agencies, it has repeatedly achieved good results.

Classic battle examples include the submarine Baiyangyu sinking the Japanese submarine No. 173 face-to-face, the S-44 small submarine discovered the Japanese heavy cruiser formation, and took risks to attack, sank the Kagu heavy patrol, etc.

By 1943, the strength of the US submarine force was greatly enhanced, not only increasing by 66, but also surpassing the quality of Japanese submarines, including equipped with surface search radars, which can attack targets that cannot be observed by the naked eye in the darkness of night and fog.

In 1943, US submarines sank more than 300 Japanese ships, totaling 1.8 million tons, which is fatal to Japan, where anything needs to be imported.

US submarines sank 1,113 Japanese merchant ships with a total tonnage of more than 5.32 million tons.

As the saying goes, "Before the troops move, food and grass will come first." Especially in naval battles, whether the transportation supply is smooth is directly related to the outcome of the war.

In the battle on the Pacific battlefield, the US military continued to dispatch submarines to attack the Japanese transport cargo ships, gradually cutting off the Japanese army's "food and grass" supply, and to a large extent accelerated the demise of the Japanese invaders.

After the war, according to statistics from the United States Joint Army, Navy and Air Force Committee, the US submarines in World War II sank 1,314 Japanese ships and 5.3 million tons at the cost of losing 52 submarines, which is 55% of the total losses of Japanese ships.

Japan, which lost its maritime traffic line, has reached the brink of collapse, and even without the atomic bomb, they will not last long.

Undoubtedly, in that time and space, in the Pacific War that defeated the Japanese fascism, the US submarine force was a group of fierce sharks cruising on the Pacific battlefield, greatly accelerating the historical process of anti-fascism.

However, in the current time and space, although the US submarine force is still very powerful and equipped with a large number of advanced submarines, due to the stronger anti-submarine capabilities of the Japanese army, the US submarine force has achieved far less results than before, and its own losses have also been much greater.

Now, Yang Fan finally made a big move. The xxi submarine is fast, easy to operate, has strong maneuverability, strong firepower, safe and reliable, and is very suitable for long-term and continuous underwater combat.

As long as they are used well, they can completely turn into a group of extremely powerful mad sharks!

"Report to the captain, three scales southeast to the southeast, 25 nautical miles away, and the Japanese fleet was discovered!"

“Repeat,…”

"Haha, we're finally here. Brothers, fuck you guys, prepare to start a massacre!"
Chapter completed!