Jiang Zhongming sent the detailed plan to Tan Renhao on time, and in the past three days, Tan Renhao was also busy collecting relevant information, and officially confirmed that Jiang Zhongmin's transformation plan was feasible.

During the First World War, there was no such thing as a heavy cruiser, in fact, the heavy cruiser was a product of the treaty, because the "Songjiang Treaty" only limited the number of capital ships, tonnage, artillery caliber, etc., but did not make strict restrictions on cruisers.

It was at this time that the heavy cruiser was born, and when the treaty was still being negotiated and not officially signed, the Tang Empire realized this, so the design of the heavy cruiser began.

In fact, the heavy cruiser was to equip the battleship with heavy guns as much as possible, and the treaty only limited the caliber of the guns of the heavy cruiser to 203 mm and the displacement to no more than 15000 tons, and there were no strict requirements in other aspects. On this basis, the Don Empire developed several heavy cruisers within a few years. At that time, the flagship of the Fifth Fleet, the "Yancheng", was a treaty-type heavy cruiser, and the "Tsunaki" class, which is now in service in large quantities in the Imperial Navy, and the latest "River" class heavy cruisers, were all developed on the basis of treaty-type heavy cruisers.

The heavy cruisers before the "Trottle" class were experimental in nature, after all, the installation of heavy guns in a limited hull required very advanced technology, as well as great design capabilities. The Tang Empire adopted the development method of small steps and fast running, and built a total of 32 heavy cruisers of three classes before the "Solar Terms" class, of which 24 were demolished before the war, 24 were mothballed, and only 4 were still in service in the Navy when the war broke out, and all of them were in the Atlantic Fleet. After the outbreak of the war, all 24 heavy cruisers were unsealed. It was incorporated into the combat sequence of the Navy, only because its performance was outdated, so it rarely participated in first-line operations, most of them served in second-line troops, and did not lose much in the war. To this day, 22 cruisers of this type are in service with the second-line troops, many of which are flagships of local fleets.

"He did his job very meticulously." After reading Jiang Zhongmin's plan, Tan Renhao went to Gan Yongxing, "In addition to the names of these 22 warships." In addition to the list of where they are now in service, some analysis of the performance and condition of these ships has been made. Finally, there is the number and scale of slipways that we can use, and there are about six of the first batch of ships that can be renovated, and if the materials and workers are in place, the construction period will be less than half a year. ”

"He was originally a more serious person." Gan Yongxing said while looking at the documents, "When I was in the General Staff, he was very serious in everything, which made people feel a little rigid. But. That's a good thing, at least for now, we need someone who is serious. ”

Tan Renhao pretended to go to drink tea and did not answer.

"Do you think this plan is feasible?" Gan Yongxing looked at Tan Renhao.

"It's not a big problem. The main problem is whether we can arrange the construction period of those slipways, in addition, the large amount of materials required for the transformation, whether the spare parts can be in place, the quality of the workers, and how much time it takes to complete the design drawings of the transformation. Tan Renhao shrugged his shoulders, "This is not our job, we should let the technical office personnel negotiate with the shipyard, if we are sure to complete this plan." Then we should first do some preliminary preparations, especially the design drawings of the transformation, which must be taken out first. ”

"No problem, I'll arrange it!" Gan Yongxing picked up the phone as he spoke, and called his adjutant in.

After a short time, the captain's adjutant entered the office, and Gan Yongxing gave him the plan, and then gave him a few more instructions. After the captain agreed, he whispered a few words in Gan Yongxing's ear. That's when he left.

Seeing Gan Yongxing's expression change, he then laughed, and Tan Renhao looked at him suspiciously.

"I just got the news." Gan Yongxing took out a cigarette and a match, and scratched a few without lighting them, "There is movement on the Japanese side." ”

Tan Renhao was stunned for a moment, and immediately asked, "Tojo is ready to flee to the United States?" ”

Gan Yongxing nodded, this time he finally lit the match, he lit a cigarette, and said: "The intelligence department has just received the news that Japan will send all its senior talents to the United States from tomorrow." Then again, what high-level talent does Japan have? In addition to those engineers and scientists, I am afraid that there are more politicians like Tojo who play conspiracy or plot military coups, and there are also a group of militarists who are not afraid of death and like to cut their bellies with knives. ”

Tan Renhao smiled dumbly, Gan Yongxing's words came to a dead end.

"If you have time in the past two days, go to the intelligence department, maybe there will be new information soon."

"Then I'll finish what I'm doing, and I'll go over there and ask."

Gan Yongxing didn't talk much about Renhao, let him leave through the side door, and then, he laughed.

Japan's plan to evacuate high-level talent to the United States has long been exposed, after all, so many people are going to flee to the United States, and this is not something that can be hidden. As early as the beginning of the year, that is, at the beginning of the battle of the Mariana Islands, the Imperial Intelligence received the news that the Tojo government had despered and continued to stay in Japan, and they could only survive by gnawing on the bark, and it would not be long before they could not even gnaw on the bark. As a result, the Japanese military government came up with an evacuation plan. Although it is not possible to send tens of millions of Japanese people to the United States (and the United States will never accept tens of millions of Japanese war refugees), it is certainly possible to send tens of thousands of high-ranking talents to the United States for refuge. If the United States wins the war in the end, then these people will become the backbone of Japan's recovery, and they can also assist the United States in the war, which can be regarded as fighting for themselves.

The scale of the evacuation plan was very large, not to mention tens of thousands of people, even tens of thousands of pigs, and it would be very difficult to cross the Pacific Ocean and reach the United States. The biggest trouble is the transportation channel, as well as the means of transportation.

Initially, the Japanese planned to use air transport to complete the "Great Escape", but it was very difficult to evacuate tens of thousands of people, and it was very difficult to use transport planes. Then. Only the American C47 transport aircraft can be used, because the aircraft industry in Japan has been completely destroyed, and the United States can only be counted on to provide transport aircraft to help them complete the retreat. At that time, only the C-47 in the United States could fly directly from Hokkaido, Japan to the Aleutian Islands, and the C-54, which had a stronger load capacity, could not be put into use until the end of 24.

The C-47 can accommodate 32 passengers, or up to 54 people, even if it is recklessly stuffed in. From the airport in Hokkaido to the nearest airport in Attu, the C-47 makes a round trip, plus loading and unloading crews. As well as refueling, maintenance of aircraft, etc., it will take at least twenty hours. At that time, there were about 80,000 people in Japan who needed to be evacuated, and if you want to evacuate these 80,000 people in ten days, you need to put in at least 150 C-47s.

And ten days of retreat is very unrealistic, and to complete it in one day, 1500 C-47s are needed. In total, the United States does not have so many C-47 transport aircraft. Moreover, the airports in Hokkaido, as well as the airports on Attu Island, could not accommodate so many transport planes and the fuel they needed. There are also camps for tens of thousands of refugees.

In fact, the biggest trouble with the retreat by air was the more than a hundred fighters of the Tang Empire stationed on Kuye Island. These fighters have been patrolling over the Kuril Islands and can kill them in more than an hour. From Hokkaido to Attu Island, the Kuril Islands are a must-go route. It is impossible for the United States and Japan to provide escort fighters for these transport planes, and even if there are escort fighters, when they are intercepted by the fighters of the Tang Empire, the losses will be extremely heavy. What's more troublesome is that the Tang Empire's fleet has been active in the Pacific Ocean, and if the retreat time takes a few days, then the Tang Empire's fleet will definitely rush over. At that time, under the interception of carrier-based fighters, the chance of escaping will be even smaller.

The plan to evacuate entirely by air was rejected, and only part of it was retained, which was to send a group of high-ranking politicians to the United States through this air channel. As long as the secrecy work is done well, and the plane takes off suddenly, it is still very certain to take advantage of the gap in the patrol of the Tang Empire's fighter planes. At least that's what the Japanese thought, they thought that they had mastered the patrol lines of the fighters of the Don Empire, as well as the patrol time. It is possible to take advantage of the opportunity to escape when patrol fighters alternate.

But there are only a few hundred politicians, and the vast majority of them are technicians, especially scientists and senior engineers.

The only alternative to air freight is sea freight, which is more dangerous. The Tang Empire's submarines have been operating in the North Pacific, and as the Japanese Navy has lost its anti-submarine capabilities, and the U.S. Navy's patrol planes have not been able to fly to the waters near Hokkaido, Japan (even if they can fly over, they will not risk being hunted by the Tang Empire's fighters), the Tang Empire's submarines are even more unscrupulous in the waters near Hokkaido, Japan, by April 24, the Tang Empire's submarines have laid thousands of mines outside the port of Hokkaido, Japan, It was clear that Japanese ships would not be allowed to leave the port.

It is impossible to take the sea route, so the only way is to take the route below the sea surface. At least, Japan still has a batch of submarines in its hands that can be used, and how can one or two hundred people be crammed into one submarine (it is really stuffed in, and these people are not treated as human beings at all). Previously, these Japanese submarines were trapped in the harbor due to lack of fuel, and now it is finally time for them to do their job.

After repeated research and a large number of arguments, the Japanese finally decided to use submarines to complete the "Great Escape". At that time, the Japanese Navy still had about 30 submarines at its disposal, and according to the calculation that a submarine could carry 200 people, it could carry 6,000 people at a time. But the problem was that these submarines were scattered in several ports at that time, and what was more troublesome was that there was a serious shortage of diesel fuel in Japan, and there was no guarantee that these submarines would be able to go to sea smoothly.

By early August, the Japanese had managed to obtain more than 2,000 tons of diesel fuel and load 30 submarines with fuel for one-way voyages. According to the plan, the submarines will send the first of the most important personnel to Attu Island, where they will be refueled and returned to Japan for a second delivery. The cruising capability of Japanese submarines is very good, and if they are fully fueled, they can run more than 10,000 nautical miles at a time, so that they can guarantee at least two round-trips between Beihai Island and Attu Island. Of course, the entire retreat will be carried out at least thirteen times, which will take at least three months.

In fact, the most critical thing in the whole "Great Escape" was not the method of retreat, but the work of secrecy. Just like the Japanese do everything else, they are sacrificing their roots. This plan was doomed to fail at the beginning, to evacuate tens of thousands of people, it is impossible to keep it secret, the more people know, the lower the degree of secrecy, who can guarantee that none of those tens of thousands of people do not want to go to the United States and want to join the Tang Empire? Because of this, as early as the beginning of the year, the intelligence department of the Tang Empire learned of this retreat plan, and soon got more detailed information, and then began to deploy, looking for ways to take out these Japanese submarines.

"The MIA just sent it." The Colonel's officer from the Navy's intelligence sent a telegram to Tan Renhao, "Tojo and his important staff have arrived at Shirakubu Airfield, taking off in the afternoon and passing through the airspace patrolled by our fighter jets at night. ”

"Is there any preparation on the Lu Hang side?" Tan Renhao glanced at the telegram and returned it to the colonel.

"The news was sent to the Army Aviation at the same time, and now the Army Aviation has secretly deployed a squadron of night fighters on the side of Kuye Island." The colonel took out a cigarette, "I heard that the prime minister personally called Wei Boyu and asked the army to intercept all these transport planes, and not let any of them go." The difficulty is not small, after all, this is a night interception, and there are too few fighters in a squadron, and the success rate will not be very high. ”

Tan Renhao declined the cigarette. "Then I'll come back tomorrow, when will the Japanese submarine leave the port?"

"For just two days, they couldn't slip away, and after taking out those submarines, the Japanese could only swim to the United States."

Both of them laughed, Tan Renhao didn't delay much time in the intelligence department, he just came over to ask about the news, and now he still has a lot of things to deal with, which can only be regarded as relaxing and adjusting his nervous spirit. Of course, the Japanese could not slip away, and such a large escape plan was simply impossible to realize.