The Japanese troops who were cowering in Rangoon were completely panicked, they had already expected that the enemy troops temporarily staying in Donghu would not be able to confront them like this, but they definitely did not expect that the opponent's attack would come so suddenly, and the momentum of the attack would be so strong and fast. The opponent's forward has already approached Bago, and Bago is only 80 kilometers away from Yangon, which is probably only two hours away for an enemy with mechanized capabilities.

"What should I do?" The panicked Japanese troops in Rangoon immediately appealed to the base camp for help and asked for tactical guidance. The enemy had approached less than 80 kilometers from Yangon, and by this time the number of Japanese troops cowering in Yangon had reached more than 4,000, which was the total number of Japanese troops currently in Burma. The telegram of the Burmese Japanese army requesting tactical guidance was sent back to the Japanese mainland, and there was an uproar in the Japanese base camp, and the war in the Philippines was in the heat of the war, and if Yamashita Fengwen's southern marching corps was dispatched back to Burma at this time, I am afraid that it would cause trouble to Yamashita Fengwen's tactical arrangement, but they could not watch the imperial army in Burma being completely annihilated by their opponents.

The Hosho gun, one of the first aircraft carriers in the Japanese Navy, stayed on the Japanese mainland for deck extension modification, but due to the excessive extension of the flight deck of the Hosho, the navigation performance of the Hosho after the second refit was not good, and it could only be left on the mainland by the Combined Fleet for offshore defense work. At this time, the Burmese Japanese army asked the base camp for help, and after obtaining the consent of the cabinet and the naval headquarters, the Japanese base camp decided to send a mixed fleet led by the Fengxiang to Yangon to provide support.

The Battle of Songhu a few years ago and the great victory of the Combined Fleet in the Pacific Ocean made the Japanese Navy extremely contemptuous of the maritime forces of all countries in the world today, and in particular, the tactics of the surface fleet in the Battle of Songhu to provide firepower to suppress the ground war made the officers and men of the Japanese Navy talk about it even more. Knowing that the enemy forces currently approaching Rangoon did not have the ability to deal with the naval fleet, the mixed fleet headed by the Fengxiang had just left the Japanese port, and the officers and men of the fleet were already preparing to retake Burma with high spirits.

Japan sent a mixed fleet to Burma to help in the war, this news was somewhat unexpected by Zhuo Fei, because since the independence army began to launch a large-scale counteroffensive, it was rare to see the air support of the Japanese army, and only a few careful gunboats could be seen loitering in Yangon Harbor, and Zhuo Fei even thought that the Japanese cabinet was not optimistic about the war in Burma from the beginning. But what he never expected was that the Japanese army invading Burma was about to be driven out of Burma, and at this time, the Japanese sent a mixed fleet.

Zhuo Fei was full of questions about the news that the Japanese mixed fleet had set off to Burma, but he did not hesitate at all about this information from the military commander, and immediately sent a telegram to Ruili, asking Angela to dispatch the rocket troops that were still in the experimental stage to Yangon. Gathering the best of all the scientists in Ruili, Zhuo Fei secretly established a weapons laboratory, starting from short-range rocket artillery, this secret weapons laboratory is developing so-called long-range rocket weapons according to the ideas proposed by Zhuo Fei, so far, the so-called rocket weapons of the umbrella company are still in the experimental stage.

Using long-range rockets against Japanese ships at sea was a strategy that Zhuo Fei came up with when he couldn't get more fighters from Europe. The rocket project was first proposed by the Germans, and in fact, at the time of the expansion of the German army, the V-type rocket of the Germans was in a state of development. According to the information sent back by Vivian's intelligence agent who remained in Germany, the Germans have successfully developed the V1 rocket, and the Germans are currently developing the V2 rocket.

The rocket weapons developed by Zhuo Feiyao Weapons Laboratory and the V-type missiles developed by the Germans are two different concepts, and the missile weapons developed by the Germans are precise and complex, and they need to consume a lot of materials, and the current umbrella company cannot meet this series of requirements. Therefore, the rocket weapon proposed by Zhuo Fei abandoned the stupid and rude image of the German V-type missile, and the launch method should be from the ground to the air, in fact, the rocket weapon planned by Zhuo Fei should be regarded as the earliest small air-to-ground missile.

The Umbrella Company's fighter units have rarely been seen since the start of the war, and all but two squadrons sent to the Forces nouvelles for aerial fire support have been quietly parked in hangars waiting to be refitted. According to the plans of the scientists and technicians in the arsenal base and weapons laboratory, all the fighters of the umbrella company, including those bombers and transport planes, will be modified, and the modified fighters will only have a few more launchers under the wings.

The rockets developed by the weapons laboratory are housed in these launchers, and according to the planning of the weapons laboratory, these newly developed rockets are also divided into different categories. Ordinary signal rockets are suitable for fighter jets to install offensive white phosphorus bombs, destructive incendiary bombs and fragmentation anti-personnel high-explosive bombs, and the weight of such rockets mounted on fighters generally does not exceed 100 kg. Heavy rockets mounted on bombers and transport planes weigh more than 200 kilograms, and the head of the armor-piercing warhead is filled with more high-explosive charges, and once the heavy rocket hits the target, it releases energy equivalent to a medium torpedo with a caliber of 400 mm.

For a long time, Zhuo Fei did not regard those fighters that he had worked so hard to get from Europe as conventional weapons, because he knew that once the rocket weapon he proposed became a reality, all hostile ships within the flight radius of the fighter would be hit by this rocket weapon. Powered by liquid fuel, this new air-to-surface rocket weapon flies faster, and in a sense, once it is successfully launched, it is simply impossible to intercept it with fire.

And the stable flight and ultra-large capacity charge make this rocket weapon with an effective range of more than 1,500 meters a nightmare for all surface ships, because no one would have thought that a deadly attack would come from 1,500 meters in the air. Zhuo Fei originally planned to keep this new type of weapon to deal with Yamashita Fengwen's Southern Advance Corps, but he did not expect that the Japanese would send a mixed fleet to Burma at this time to help in the war, which made him have to come up with this new type of weapon that was still in the experimental stage in advance.

Eighty fighters who had participated in at least one field test of rocket weapons were urgently transferred to Dongoo, and 120 planes of various types that could be dispatched by the umbrella company have also arrived at the secret airfield in Donggu, where they will conduct the final rocket weapons test operation. For the next four days, they would secretly rush to the secret airfield built by the Independence Army in the Bago Mountains in batches, and then quietly wait for the appearance of the Japanese mixed fleet.

Rocket weapons are the first-level secret of the umbrella company, and the entire Donghu Airport is closely protected by the elite escort team drawn from Ruili, and without Zhuo Fei's warrant, even Angela, who urgently escorted a large number of rockets from Ruili to Donghu, would not be able to enter the airport. "Boss, the accuracy rate of the last round of testing has exceeded 7 percent, and I think this weapon can be put into actual combat." The Jewish scientists in charge of the project were still a little nervous, and if they were given more time, they might be able to develop a more sophisticated air-to-surface rocket weapon.

"It doesn't matter, an accuracy rate of more than 70% is already very good, and besides, this is only the first generation of products, and our expectations can't be too high. We're going to be putting more resources into this project, and you can improve and upgrade it as much as you like, and I'm looking forward to seeing better rocket weapons come along. Zhuo Fei is very happy about the accuracy rate of more than 7 percent, without the premise of accurate guidance and computer calculation, this kind of rocket weapon that can almost be called rudimentary can achieve a hit rate of 7 percent, which is already a miracle, Zhuo Fei can only express satisfaction with this rather than a disease.

The Umbrella Company's foundation is still too weak, and there are not many resources to support the weapons laboratory to develop V-shaped long-range missiles like the Germans, but Zhuo Fei can guide those scientists and engineers to change their thinking and develop rocket weapons that are more suitable for actual combat. This kind of air-to-ground rocket weapon, which has an effective range of more than 1,500 meters, coupled with the cooperation of more than 100 warplanes, is enough to ensure that Rangoon will not be threatened by the Japanese mixed fleet.

Knowing that Japan had sent a mixed fleet to Burma to help in the war, Zhuo Fei dispatched fighter units to Dongoo and ordered the forward troops stationed on the periphery of Bago to attack the Japanese defense line. After the strong takeover of Bago, the armoured forces that served as the striker were less than 50 kilometers away from Rangoon, and by this time, the mixed fleet that had left Japan had just arrived in the waters of Malacca.

"Order, the forward troops continue to launch an attack on Rangoon, and the rocket artillery units and artillery units cooperate to fight, and strive to suppress the Japanese troops in Rangoon in Motama Bay." Zhuo Fei's order puzzled many of the independent army, since it was already an attack on Rangoon, why not simply kill all the Japanese troops who were cowering on the front line of Rangoon. Zhuo Fei did not explain too much about this, the new air-to-ground rocket weapon is a first-class secret of the umbrella company, and before the Japanese mixed fleet arrived in the coastal waters of Yangon, Zhuo Fei did not plan to tell his entire plan to destroy the enemy.

As soon as Zhuo Fei's attack order was issued, the Japanese troops who were trapped in Rangoon were devastated, and then they had to face not only the overwhelming artillery cover, but also the powerful and assaulting armored forces of the Independence Army. What made the Japanese army in Rangoon even more angry was that the Burmese natives, who had always been happy with the Japanese army, also took the opportunity to make trouble, and for several days in a row, the Japanese troops in Yangon were attacked by small groups of Burmese natives. Telegrams for help were sent one after another, and the mixed fleet led by the Fengxiang also rushed to Yangon non-stop, and the Japanese did not know that Zhuo Fei had dug a big pit and was waiting for this mixed fleet to come for help.