The sky was blue, and there didn't seem to be a single cloud. The color of the sea is a deep blue color with an icy cold feeling. The color of the sea reflects the low temperature of the sea, the reduction of marine life, and the high clarity of the seawater. The sea off Fuzhou, the sun is everywhere. The wind and waves on the sea were very stable, and a large number of sailing ships rode the wind and waves, and went straight to the other side of the strait with great momentum. Since the winter wind blows from the mainland to the sea, the sails sail with the help of the wind, forming a spectacular scene of thousands of sails racing. Each sailboat was filled with soldiers, who sat on the deck in an orderly manner and maintained an unconventional posture.

The purpose of this sea-crossing feint was to attract the Japanese army to dispatch fighter planes and lure the Japanese navy to dispatch submarines. The fleet of ships crossing the sea seems to be in a mighty form, but the water is extremely high. There was only one regiment on the fishing boats, including a naval group. In order to confuse the Japanese reconnaissance submarine, the soldiers on the fishing boat were neatly arranged with scarecrows. The purpose of the Navy's submarine hunting group was to hunt down Japanese submarines, and the submarine hunting wooden boats of the naval brigade were equipped with sonar systems and carried barrel-shaped depth charges. The boats had been converted into sailboats, but the sound of the machines could not be heard, and it was clear that they were sailing with the power of the sails.

About 30 nautical miles off the coast of Fuzhou, a Japanese reconnaissance submarine surfaced and was swimming slowly. The entrance and exit door in the shape of a cigarette pipe on the upper part of the submarine opened, and a Japanese observation sentry looked in the direction of the mainland with a telescope. Suddenly, a large number of sailboats appeared in sight, and the observation sentry opened his mouth wide in surprise. "Report to the captain and find a large number of fishing boats approaching." The Japanese captain climbed out to observe, and the oncoming sailing ship was getting closer and closer, and the Japanese captain immediately ordered the submarine to dive half a body to continue to observe. The sea water churned, and the submarine slowly sank into the sea like a shark, and after the sea water stabilized, the periscope was exposed.

The Japanese captain could not determine whether the sudden appearance of so many sailboats was for fishing or for a military purpose. Soon, the Japanese captain finally saw that the fishing boat was full of soldiers. "Immediately sent a report to the headquarters that the 125 reconnaissance submarine found a large number of fishing boats full of enemy soldiers in the waters of Fuzhou, and it can be judged that the enemy army launched a sea-crossing operation. Our boat continues to observe, and the details continue to be reported. "According to common sense, submarines should dive deeply, but the Japanese captain did not think that there was any danger to the fishing boats, so he decided to continue to observe and find out how many fishing boats the enemy had dispatched, and to find out the enemy's strength to the greatest extent.

Soon, the Japanese reconnaissance submarine was surrounded by the wooden boat formation, and the Japanese captain kept issuing orders to dodge left and right to avoid colliding with the wooden boat. Soon, a strange phenomenon appeared, the Japanese captain found a wooden ship aimed at him, dodged several times and could not dodge, the enemy ship seemed to know his location. He judged that the periscope and antenna that were exposed to the water had been discovered by the enemy, and immediately ordered the submarine to dive. But where did the Japanese captain think that he was locked by the 1st Sub-Hunting Team of the Eighth Route Army Naval Brigade. The waves rising from the Japanese submarine clearly told the location of the submarine, and the disaster of this Japanese reconnaissance submarine befell him.

The submarine hunter sailed to the place where the sea was tumbling, and a naval officer decisively ordered the drop of depth charges. The submarine was modified so that the rear of the boat was flat and protruding some distance forward, and the deck was sloping to a certain extent. According to sonar, the Japanese submarine dived about 30 meters, and the depth charge detonated at a depth of 40 meters. After receiving the order, the operator quickly operated the bomb detonation timer, then cut the rope, and the cylindrical depth charge automatically rolled into the sea. Four depth charges were dropped into the sea one after another, and with the violent disturbance of the propellers, the submarine hunter quickly fled the dangerous sea area.

More than ten seconds later, a few dozen meters away from the wooden boat, a column of water soared into the sky. The surging waves lifted the submarine boat and tilted so sharply that it almost turned it upside down, which was thrilling. After the swell subsided, the submarine boat turned around and headed back to check the situation. An observation sentry on the mast on the deck suddenly shouted: "Report to the squad leader, oil stains have been found ahead!" Sure enough, large areas of oil continued to emerge from the sea, and there was no doubt that the Japanese submarine was blown up, and cheers were immediately heard from the deck. Depth charges are the nemesis of submarines, but the use of wooden boats to complete the blow is a strange thing in naval warfare. The first battle was won, and the sailors cheered and were ecstatic.

The officers and men of the navy who hunted the submarine fishing boat did not expect that it would be so easy to deal with the Japanese submarines. But this is only a reconnaissance submarine, not offensive, and unprepared. Then the real danger begins, which they did not anticipate. Calm returned to the sea, and the flotilla continued to sail. At this time, the Japanese command in Taipei received a report from the 125 reconnaissance submarine that a large number of fishing boats had been found in the waters of Fuzhou, numbering about 90 or so, and that the fishing boats were carrying a large number of soldiers. When the commander of the Japanese army, Yamashita Fumi, received the report, he was suspicious and ordered the reconnaissance submarine to find out the real situation.

"Your Excellency, Commander, the enemy launched a sea-crossing operation? However, why do not use fighter planes to carry out air strikes and seize air supremacy, this is the minimum military common sense. It is simply inconceivable that the enemy forces are contrary to military common sense. Moreover, the use of wooden boats to force the crossing of the Taiwan Strait is an almost impossible combat mission, not to mention that fishing boats will be attacked by attack submarines, and even coastal artillery will destroy all fishing boats in the sea. I'm sure the enemy must have other plots. "The chief of staff of the Japanese army is the head of the analysis, and there is no room for refutation. Commander Yamashita Fumimi was silent and did not say anything.

"Report, the 141 reconnaissance submarine found a large number of fishing boats in the waters of Quanzhou, the fishing boats were full of soldiers, and the target was Penghu!" A Japanese combat staff officer made an urgent report. Yamashita Fengwen looked at the map, and at this time a combat staff officer ran over to report: "Report, the 125 reconnaissance submarine suddenly lost contact, and the situation is unknown!" "Immediately report the situation to Commander Okamura, dispatch reconnaissance planes, and be sure to find out the enemy's movements." Commander Yamashita Fumi's order was very important, and he had to get instructions from Okamura Ninji before he could take action.

The atmosphere in the headquarters of the Chinese Dispatch Army at the Brigade University was tense, and Okamura Ninji received a report from Yamashita Fumi, and he hardly believed it to be true. According to the instructions of the base camp, Okamura Ninji moved the headquarters to Luda to prepare for the entrenchment of the northeast. Okamura Ninji was also puzzled and silent, and other generals were not good at expressing their opinions, which was the rule of the Japanese army. According to a report from a reconnaissance plane, the enemy dispatched 95 fishing boats, about two brigades, in the waters of Fuzhou, and the target was Taichung. The enemy dispatched 75 fishing boats and about 4 regiments in Quanzhou, and the target was Penghu. A combat staff officer reported.

"Your Excellency General, the enemy's dispatch of fishing boats to launch a sea-crossing operation must rely on powerful air power, and the US 14th Air Force has been transferred from Burma to China's territory to support operations in the Taiwan Strait. In addition, the Eighth Route Army Flying Regiment in Fujian will also be the main force in air support operations. "Now the truth is revealed, the Su Yu Corps of the Eighth Route Army and Lin's Northwest Group Army, their ineffective combat is an illusion and is confusing us, and their goal is to cross the sea to fight. Fortunately, we have made careful preparations in Taiwan, so there is no need to panic. The telegram ordered Yamashita to dispatch all attack submarines to strangle the enemy's sea-crossing vessels, and dispatched combat planes from Dajia Airport and Jiaxing Airport to carry out air strikes against the enemy's sea-crossing vessels in the waters of Fuzhou and Quanzhou. ”

Okamura Ninji was calm and calm, he believed that the enemy forces would not be able to cross the Taiwan Strait at all without the cover of a strong fleet. The enemy may not reach the shore, and his ships will be destroyed on the surface. "Immediately send a report to the base camp and pay close attention to the movements of the US military." Okamura Ninji is not worried about the Taiwan Strait, what he is worried about is whether the US military will launch a cross-island operation, and if the US fleet attacks Tainan, it will be the most terrible. It is understandable for him to put his mind on the Americans, and the Chinese army's launch of the sea-crossing operation was nothing more than a feint attack launched in coordination with the unified action of the US military.

Now we turn the camera to Quanzhou, the wooden boat crossing the sea launched a feint, and Fuzhou and Quanzhou unfolded simultaneously. On this morning, the 25th Army of the 9th Corps dispatched a regiment, taking 75 fishing boats and fake straw men, and set off from Shenlu Bay in Quanzhou and went straight to Penghu. The landing convoy sailed about 40 nautical miles away from Shenlu Bay when it was spotted by Japanese reconnaissance submarines cruising on the sea. The Japanese reconnaissance submarine immediately reported to the command, and at the same time urgently contacted the Japanese submarine stationed in Penghu. Due to the growing strength of the Chinese and American air forces, most of the Japanese warships withdrew to Tainan, Taipei, and the waters east of Taiwan in order to avoid bombing. There are 16 Japanese attack submarines in Penghu.

When the Japanese reconnaissance submarines were in contact, two Japanese attack submarines happened to be on patrol duty in the middle line of the Penghu and Quanzhou Straits. According to general military common sense, if you want to launch a landing operation against Taiwan, you must first take Penghu. As a strategic point in Taiwan, Penghu is a key point that must be contested by both sides, so the Japanese army attaches great importance to Penghu, and it is not surprising that attack submarines appear here. The 2nd Submarine-Hunting Brigade of the Eighth Route Army Navy, with 12 submarine-hunting wooden boats distributed in the fleet, is responsible for submarine-hunting tasks.

For a long time, the Japanese Navy has been building its own mind. It mainly focuses on large warships and aircraft carriers, and does not attach importance to submarine operations. The reason is simple, in East Asia and even in the Eastern Pacific, the greatest threat to the Japanese Navy is the Soviet Russian Pacific Fleet.

Since the Russo-Japanese War in 1904, when the Japanese Navy ravaged the Russian Pacific Fleet, there has been no rival in the entire eastern Pacific. Submarine warfare is a method of warfare in which the weak defeat the strong, and the powerful Japanese fleet does not need to rely on submarines for attack missions, so the Japanese Navy is not only backward in tactical thinking but also backward in submarine performance. Since the outbreak of the Pacific War, the Japanese Navy's submarines have not done anything, which is the best proof of this. At present, the Japanese Navy has about 200 submarines, of which less than 50 are large submarines, 45 are medium-sized submarines, and small submarines and transport submarines are negligible. The Japanese army deployed mainly pocket submarines in the waters east of the Taiwan Strait, and the number of Japanese pocket submarines was less than 100.

The large submarines and medium submarines of the Japanese army were mainly integrated into the task force and served as defensive missions in the Japanese mainland. Take the Japanese Army's Type B submarine as an example, its performance is very strong. The length of the Japanese B-type submarine can reach 106 meters, and the width of the ship is 9 or 3 meters. The draft is 5, 14 meters. The surface displacement is 2589 tons, the underwater displacement is 3654 tons, and the depth can reach 100 meters. The endurance of the Japanese B-type submarine is equally amazing, with a surface endurance of 16 knots and up to 14,000 nautical miles. It is more than enough to cross the Pacific Ocean from Yokohama to Los Angeles round trip (the round-trip distance is about 10,000 nautical miles).

The reason why the Japanese military did not dare to deploy Type B submarines in the Taiwan Strait was that they were not needed according to strategic needs, and second, they were afraid that they would be attacked by the Chinese and US air forces and would not be able to bear the losses. With the shipbuilding capacity of the Japanese Navy, it will take about two years to build a Type B submarine. The Taiwan Strait is like a swimming pool for the Japanese Navy, and there is no need for submarine warfare. It was only after the Chinese and US air forces seized air supremacy in East China last year that the Japanese military deployed pocket submarines in Taiwan. The Japanese pocket submarine had a crew of two, an underwater displacement of 44 tons, a speed of up to 24 knots, a cruising range of 80 nautical miles underwater and 150 nautical miles on the surface. Pocket submarines carry two 450-mm torpedoes.

The miniature submarine combat mode is to use aircraft carriers to launch a quick and covert strike against the enemy fleet. The narrowest point of the Taiwan Strait is just over 100 nautical miles, which is very suitable for pocket submarine activities. Two Japanese pocket submarines received an operational order and immediately assumed an attack posture. They soon spotted a large fleet of ships coming towards them, but what they didn't know was that the sonar systems of enemy submarine hunters had also caught track of them.