Regarding Yang Zhen's protest, the British still didn't care much about it before. The British have always believed that they still have an absolute advantage in some aspects. However, in May '42, the Japanese army occupied all of Papua New Guinea and landed on the Australian mainland with Port Moresby as its basis.

At the same time, after capturing all of Burma and launching an offensive against eastern India and Bengal, the British were really panicked. At this moment, the North African theater is raging, and the United States is not able to enter the war for a while. The British, whose strength had almost reached the extreme, could not continue their so-called pride.

Because they knew very well that the reason why they were able to withstand the Japanese offensive in India now was in addition to the large amount of equipment provided by the Americans. Another point is that when the Anti-Japanese Alliance launched an offensive in Chinese mainland, it forced the two divisions that the Japanese army had originally used to transfer to Southeast Asia to be transferred back to Manchuria halfway through.

If these two divisions had been thrown into India at that time, then with the current strength of the British army in Southeast Asia, I am afraid that the Japanese army would be able to hit Karachi in one go. It was the help of the Japanese that made the British understand that in the Far Eastern battlefield, the real role played by the Anti-Japanese Union was far from what they could have imagined.

After experiencing Yang Zhen's strong backlash this time, although the British did not apologize for what they did in the end, they restrained their behavior a lot. Although the equipment provided to the Anti-United Nations is always second-rate for the British army's own system and compared with American goods.

It's like they only supply Stirling bombers, but they have been reluctant to supply Lancaster bombers and Halifax bombers. Only Crusader cruiser tanks were offered, but newer Cromwell cruiser tanks were consistently refused. During the war, the British still provided equipment that they had transferred to the second line, but they did not do this kind of shoddy, holding third- and fourth-rate equipment to prevaricate the Anti-United Nations.

If at the moment on the one hand, it is seizing the time to adjust the equipment, the formation, and receive the tanks transferred by the British. and because of the flashiness of the British, only half of the equipment promised was given, and the tactical aircraft that the Anti-Japanese Federation needed most at the moment was Yang Zhen, who was far away and furious.

Knowing that the plane that the British originally promised to give, it would be such rubbish. I'm afraid that for the British to default, he will not just be angry. After the arrival of these British planes, it was better to have nothing than the trouble they had caused to the Anti-Union. At least at the same time, he will not let the British get cheap and behave, and at the same time, he will also lead their so-called affection.

It's just that at the moment, he is troubled by the lack of tactical support aircraft, because the United States and Britain have released pigeons, and Yang Zhen, who is furious, has not thought of these things from afar. As that day approached, Yang Zhen's energy was more focused on drawing up battle plans and supporting the Americans.

I don't know if the historical rut that has changed has appeared after his appearance, and whether the final direction will be the same as the original Yang Zhen. In order to monitor the Japanese army, get first-hand information. In particular, the movements of the Japanese Navy began in early November, and the Anti-Japanese Union activated all the radio surveillance systems in the entire base area.

At the same time, two C47 radio signal listening planes, which had just been renovated, were used to avoid the anti-air surveillance posts of the Soviet troops in the Far East and take advantage of the cover of night. With the highest ceiling, they flew over the airspace of the Soviet Union into the Sea of Japan from the uninhabited area of the Far East of the Soviet Union without turning on their navigation lights, and strengthened the reception of radio signals in Japan.

Although the composition of the Japanese Navy's ciphers is much more advanced and complex than that of the Army, and the frequency of replacement is also quite intensive, it is difficult to decipher it with the technical ability of the Anti-United Nations and the original foundation that is not rich. However, Yang Zhen did not give up his efforts, and still did his best to track and intercept the radio signals of the Japanese Navy.

Just to confuse the United States and Britain and cover up their true intentions, the Japanese naval base in the South Kuril Islands, which was ordered by Yang Zhen to be the key monitoring direction, was silent. Not to mention the radio communication on the navy side, even the radio communication signals on the army side often come and go most of the time.

The surveillance system of the Anti-United Nations has never been able to intercept the radio signals of the Japanese Navy in this direction. However, although several Japanese naval bases in the South Kuril Islands have maintained radio silence, the number of radio signals at the major bases of the Japanese Navy and the Taiwan and Southern armies during the same period has suddenly surged.

Although the radio signals of the Japanese Navy in the South Kuril Islands were not found, and the intercepted radio signals of the Japanese Navy could not be deciphered. However, Yang Zhen still got a trace of the radio signals intercepted by the Tokyo base camp and the major strategic groups of the Japanese army in various places, as well as the radio signals of the Japanese Ministry of Foreign Affairs, which also surged.

Just based on the deciphered radio contact content of the Japanese Army and the Ministry of Foreign Affairs, Yang Zhen still can't be completely reassured. It wasn't until December 4 that the Ministry of Communications of the Anti-Japanese Federation deciphered a secret telegram sent by the Japanese Southern Army to the Tokyo base camp that Yang Zhen's heart that had been hanging was really relaxed.

The content of this telegram, which finally made Yang Zhen's heart finally relaxed, was actually very simple, and it only contained "At seven o'clock in the morning, it is scheduled to use all the troops to complete the boarding of the ship at Sanya Port." And it was such a simple sentence that made the big stone that had been hanging in Yang Zhen's heart finally land safely.

This telegram came from the Japanese Southern Army, which was responsible for the operation in Southeast Asia. What is Hainan Island? It is now the main tactical training base for the Japanese Southern Army's southward operations in Southeast Asia, as well as a climate adaptation base. The Southern Army's self-boarding of the port of Sanya in Southeast Asia will obviously not be thrown into the Chinese battlefield.

If the Japanese troops trained in Hainan were to move north to the Chinese battlefield, they should board ships from Haikou, cross the Qiongzhou Strait, and land somewhere along the coast of Guangdong. Since these Japanese troops who were training on Hainan Island had embarked on ships and set off from Sanya, their target could only be Southeast Asia, which was across the sea from Hainan Island.

And the development of events is all chained. Without taking Southeast Asia, the Japanese army will not be able to solve the most urgently needed sources of oil and non-ferrous metals at present. And they want to capture Southeast Asia, then they do not destroy the Pacific Fleet of the US Navy, do not seize the Philippine Islands. They simply can't achieve this goal.

The Americans would not sit idly by and watch the Japanese conquer cities in the Anglo-Dutch colonies in Southeast Asia. The U.S. Pacific Fleet deployed at Pearl Harbor and the growing fleet of U.S. long-range bombers deployed in the Philippine Islands were obstacles that the Japanese would have to clear no matter what.

Since the troops of the Japanese Southern Army fighting in Southeast Asia have already boarded the ship on Hainan Island. Then they attacked Pearl Harbor at this time and destroyed the fleet of the American Pacific Fleet, I am afraid that they have already reached the waters near Pearl Harbor. The surprise attack on Pearl Harbor, which changed the fate of Japan, should not change much.

After intercepting this telegram, Yang Zhen withdrew the two electronic signal reconnaissance planes that are currently the only in the world. Crossing the territory of the USSR into the Sea of Japan was simply too risky. Since the rut of history is still going in the original order, there is no need for Yang Zhen to continue to take this risk.

Not to mention that now these two planes, there is more important work to be done. That is to use the improvised navigation device developed by Professor Shu Xingbei equipped on the plane to guide the first air raid on Japan that the air force is secretly preparing for at present.

As early as when the battle was still in full swing, Yang Zhen asked the air force to dispatch two of its best combat staff officers to study the issue of bombing Japan. At the same time, the aviation was ordered to gradually withdraw most of the Il-4 bombers from the battlefield and switch to long-range cross-sea flight training. He also asked the Ministry of Communications and the Air Force to set up a special research and development team to solve the problem of bombing and navigation against Japan.

By the time Yang Zhen returned to Harbin from Yan'an, all preparations for the bombing of Japan had actually been basically completed. The radio signal reception and lateral equipment on the two radio signal receiving aircraft are the result of research during this period. Of course, the navigation of the bombing of Japan did not rely entirely on these two planes.

The communications department of the PLA General Headquarters and the communications department of the aviation unit have jointly set up several high-power radio stations and navigation stations using directional antennas in Dongning, Jiamusi, and Wangqing. According to careful calculations, the signals from these three high-power radio stations, at least two, will converge in the Sea of Japan near the Japanese mainland.

The role of these two planes is to accompany the bomber group and use the on-board radio direction finder on the aircraft to capture this meeting point. Guide the bomber formation of the air attack on Japan and search for the Japanese mainland. Once on the Japanese mainland, they rely on aerial maps and flight instruments for navigation.

Although the radio stations used for navigation are nothing more than ordinary ultra-high-power radio stations that use specific frequencies and directional antennas. The plane is equipped with nothing more than an ordinary radio direction finder and a receiver to capture this special, high-power, special radio signal. This dedicated radio receiver can capture not only the signal of the navigation station, but also the signal of the radio broadcast in Japan, as a navigation channel after penetrating deep into the Japanese mainland.

After the development of these devices was completed, the air force once dispatched its best pilots to form a small formation of two Il-4 bombers and a C-47 radio signal receiving plane, and secretly crossed the Soviet Union's Primorsky Territory to fly several times to Shiyàn over the Sea of Japan.

Although this navigation system is quite rudimentary and prone to interference. At the same time, because of the accuracy, the signal intersection point can only reach 200 kilometers away from the west coast of Japan, but after all, the problem of long-range bombing and navigation has been preliminarily solved.

The instruments of the Soviet-made Il-4 bomber used by the Anti-United Nations were too simple, and the accuracy was quite poor. Although the air force has gradually replaced it with imported American-made aviation instruments from the beginning of receiving it. However, the first is constrained by the insufficient number of imported instruments made in the United States, and the second is that the aircraft models are different, and the instruments used are also different, and the most critical thing is the lack of technical means.

Despite the various methods adopted by the aviation forces to solve the problem, they were still unable to fully improve the problem of the backwardness of the instrument level of the Il-4 bomber. Moreover, there is no ground reference at sea, and all flights are carried out solely on instruments, which requires too high a technical level for all bomber pilots participating in the war. This is also something that the anti-United Nations air force has not yet been able to fully achieve.

Therefore, Yang Zhen came up with the idea, and Shu Xingbei took the lead in the actual implementation, and came up with such a simple version of the navigation device. Although compared with the radio navigation systems of Britain and Germany, there is a considerable gap in both accuracy and distance. And the coverage did not reach the Japanese mainland.

In order to solve some signal capture problems and test the equipment, the fanatical Professor Shu Xingbei even took many adventures on the test plane to find a solution to the problem himself. After many trial and errors, although there are still some minor flaws, most of the problems have been solved. The problem of navigating bomber groups on the sea was basically solved.