Among them, because Britain is an enemy country, even if the warship is not in China's territorial waters, once it is discovered by our aircraft, it will be attacked, and now the British Far East Fleet does not have the strength to break through, and the surface ships do not dare to enter China's coastal waters at all, so the real threat is the British submarines

No matter how much progress Jishu makes, anti-submarine is not an easy task, but Hu Weidong still hopes to kill a few British submarines to make them a little more restrained, and the aircraft carrier with a large number of auxiliary ships is undoubtedly the most suitable to undertake such a heavy task, in fact, now China's only aircraft carrier has not yet fully formed combat effectiveness, Hu Weidong hopes to take the opportunity of this "exercise" to replace training with actual combat, it is best to be able to catch the British submarine, it doesn't matter if you can't catch it, at least it is an experience.

During World War II, the detection of submarines was neither easy nor easy. It is easy to say because during World War II, at least during this period, the main submarines of the navies of various countries are old ship-type submarines, and the underwater speed is extremely slow, except for premeditated ambushes, otherwise most of the time in the voyage has to surface, which is easy to be discovered by the enemy, especially the aircraft with a wide field of vision is the natural enemy of the submarine, with a long range, powerful airborne rockets are even more the nemesis of the submarine, after finding the target, the rocket will be shot out, and the submarine is often destroyed before it has time to dive. Historically, 40% of submarines sunk during World War II were attacked and sunk on the water, and most of them were the result of airplanes.

For the threat from the air, submarines in the early stage of World War II in history could also use the cover of night to choose the strategy of floating and sailing at night, diving and shutting down the aircraft during the day to reduce the loss rate. But now that the main powers of Shijie basically have airborne radars, the life of submarines will be difficult, and the German "wolf pack" can work, mainly because the main force of the British Royal Air Force has lost most of it and cannot afford to send aircraft to protect the sea lanes, but the British submarines that enter China's territorial waters to attack and harass do not have such convenience.

It is not easy to say because the sonar performance of this era is not good, so it is difficult to find a submerged submarine unless it is known in advance that there is an enemy submarine in the vicinity and the approximate area is determined. Due to the defects in the mechanism itself, the sonar of the World War II period could not detect more than a few nautical miles at most. Moreover, the more accurate active sonar has a dead angle of 30 ゚ that cannot be detected. And Hu Weidong didn't study acoustics before he crossed over. In addition to the towed aviation sonar mounted by the aircraft, the development was started in advance, and it really could not give more guiding suggestions, so now China's anti-submarine Jishu is not more advanced than the powers, and even because of the weak foundation. For the time being, it is still at the stage of imitating German sonar. Fortunately, German sonar, especially passive sonar jishushijie first. Therefore, China's sonar research can have a high starting point

Compared with the problem of Jishu, the length of China's coastline is also a headache, and the number of domestic anti-submarine ships and even long-range aircraft is still too small. Therefore, it is really impossible to defend against British submarines. It is precisely because of this that Hu Weidong thought of the "Jiangxi" aircraft carrier (that is, the original British aircraft carrier Royal Ark), which has not yet fully formed its combat effectiveness, and the German Zeppelin aircraft carrier, which began formal training earlier, is also useless. As a result, the ship formation with two aircraft carriers achieved results on the first day of the "exercise", which, judging by the oil stains floating on the sea, should have sunk an enemy submarine. However, just two days later, the head of the U.S. delegation lodged a serious protest with Hu Weidong, saying that a U.S. submarine had disappeared in China's Yellow Sea (submarines in those days were almost impossible to communicate with the outside world at depths of less than 10 meters), and that the U.S. government believed that it was the Chinese Navy that had sunk it, and demanded an explanation from the Chinese government

"Do you really think we're afraid of war?" After Hu Weidong sent off the angry Yankee, his face was also very pale, not to mention whether the US submarine was the one that was blown up and sunk in the Sino-German "joint military exercise", even if it was, it was the US submarine that violated China's territorial waters first, and the Chinese Navy had the right to kill it.

In fact, the Central Committee of the Red Party had long known about the United States sending submarines to China's coastal waters, and the British submarines borrowed from the Philippines (which gained formal independence in 1935, but remained a vassal of the United States in practice). The matter of supply and maintenance at the port of Manila is also well known to everyone, but at present, it is really not confident to confront the United States head-on, and the Chinese government has temporarily withheld it, but the Yankees have been unforgiving, and Hu Weidong, who has a strong sense of national pride, finally has no patience.

In addition to Roosevelt himself, there is probably no one on Shijie today who knows his layout better than Hu Weidong, who is a traverser, because of this, Hu Weidong began to carry out his own layout as early as the second year of the Anti-Japanese War to disrupt Roosevelt's wishful thinking. Hu Weidong admits that he is not a politician, let alone a great man in history, but he only needs to sabotage and make Roosevelt's purpose impossible to succeed, which is not difficult for Hu Weidong, a prescient traverser.

Hu Weidong's targeted "layout" is far less subtle than Roosevelt's, and to put it bluntly, it is actually very simple, that is, to enhance the strength of other powers, especially those who have bad relations with the United States, such as Germany and the Soviet Union, and if possible, to give birth to new powers as much as possible, such as Krim, a variable that has not existed in history. Although the rise of the Arab Federation is faster and stronger than Hu Weidong expected, it is what he is happy to see. As for China, due to its weak foundation, no matter how smooth it is, even if it only counts the total amount of industry, it will not want to win the first place in Shijie within 20 years, so as long as the United States can not free up its hands to contain itself, it is the most favorable situation

To a large extent, the reason why Hu Weidong dared to use force against Britain and France in the first place also has a lot to do with his shijie layout. It was precisely because Hu Weidong believed that his layout would inflict greater losses on Britain in the early stages of the European war than in history that he dared to send troops to sweep the Indochina Peninsula and was bent on incorporating it into China's territory. However, the stubbornness of the British far exceeded Hu Weidong's expectations, and even if they lost badly on the battlefield, they still wanted to recover their losses as much as possible at the negotiating table, and the US government regarded China as a potential enemy early on and targeted it everywhere, which further boosted the confidence of the British, so that peace could not come for a long time, and China fell into a situation where it was difficult to ride a tiger to a certain extent. And now, with the disappearance of the US submarine as an excuse, the US government does not hesitate to go into battle shirtless in person, trying to force China to comply.......