For Chen Yanlong and the German army, if they could not inflict heavy losses on the British and American allies in the Battle of Sicily, then the British and American allies would have countless troops, warships, planes, and tanks, bombs and ammunition, as well as all kinds of medical supplies and military supplies, which would be transported smoothly from the American mainland to Britain and the European battlefield.

And then the battlefield will all fall into the Italian campaign, or even the French campaign, or the German home campaign.

Although Chen Yanlong's worst plan was to fight with the British and American allied forces until the Battle of Normandy, and then use the exchange system to carry out a Jedi counterattack.

But if the result of this is that it is easy to have unexpected big risks, if you are not careful; It will be attacked by Britain, the United States and the Soviet Union to the German mainland, and even the city of Berlin.

As soon as he thought of such a bad situation, Chen Yanlong was even more convinced that the victory in the Battle of Sicily would inflict heavy losses on the British and American allies, and at least it would not allow the British and American troops to cross Italy.

Therefore, the battle order he had just given to Field Marshal Richthofen, and the last additional order, was to do everything in his power to inflict heavy damage on the British and American troops at all costs, so that they would retreat and suspend the war for a while.

When Field Marshal Richthofen answered the phone and exuded a murderous aura, he hurriedly issued all kinds of combat orders, especially for Chen Yanlong's new submarine force, and fought to the death, even to the last submarine.

The waves in the Atlantic Ocean are sometimes windy and rough, but at this moment, there are six large groups of new German submarine groups, which are gathering in the depths of the Mediterranean Sea at the fastest speed, towards the British port where the huge US fleet is gathered, and the submarines, preparing for a sneak attack.

However, as they moved at full speed, the air in the cabin was very dull, the air in the oxygen tube was getting hotter and hotter, and the water pressure outside the cabin was gradually increasing, but in order to hurry and safely avoid the reconnaissance of the British and American fleets, they still endured.

"Captain, Field Marshal Richthofen's urgent telegram has come again, he wants us to reach Britain within half a day at all costs, and do everything possible to inflict heavy damage on those aircraft carrier fleets sent by the American army!"

Inside one of the new German submarines, a radioman hurriedly reported to a captain.

"Hmmm! I received it, you call me back to Field Marshal Richthofen, and we will definitely complete the task, even if we sacrifice everything! For the safety of our country, for the safety of our people! Even more for the honor of our Imperial Navy! We must win this naval battle, and we and the British and American fleets will not stop fighting! ”

The naval officer, who was very loyal to Hitler, nodded in response.

"Yes! Captain! ”

The radioman also replied loudly with a solemn face.

He hurried to call back, and the fleet turned to the other personnel to inquire about all sorts of information.

For example, how long it took to reach British waters, and whether the whereabouts of the British and American reconnaissance planes were discovered, or whether the submarines and ships of the British and American forces were discovered, and so on.

However, in response to his questioning, many submariners told him very optimistically that everything is very calm now, and there is no trace of British and American submarines, ships, and reconnaissance planes.

Moreover, they also added skilled personnel to the radar inside the submarine to monitor the enemy's every move.

As for how long it will take to reach the UK, the answer of these submariners is that it will take half a day at the earliest.

In response to these answers, the captain nodded with satisfaction, and continued to concentrate on directing his submarine force to advance.

And the type of submarine they are sitting on now is the most famous Japanese submarine in the World War II era----- Japan's I-400 large aircraft-carrying submarine.

The I-400 submarine is a first-class submarine built by the Imperial Japanese Navy in World War II, the largest submarine during World War II, and the largest submarine before the completion of nuclear-powered submarines in the 60s of the 20th century.

According to later Baidu records, the I-400 carried enough fuel to circumnavigate the earth for one and a half times, and could carry three Qinglan strike planes and quickly put them into battle.

And these submarines were exchanged by Chen Yanlong using his mobile phone, and they were probably exchanged for more than 500 submarines.

Now this time they are all dispatched to the Sicilian campaign, ready to fight to the death with the huge aircraft carrier fleet that suddenly appeared in Britain by the US army, because many of the naval submariners who drove these submarines were recruits recruited by Field Marshal Richthofen in various ways, and of course some of them were original U-boat soldiers, as well as some naval soldiers.

But even so, such a huge submarine fleet still has a lot of recruits in it, or such a huge submarine force of the I-400 series; It is definitely a terrifying killing force at sea, even in the face of a large aircraft carrier fleet like Vice Admiral Kincaid, it is not afraid at all.

The I-400 has a maximum surface speed of 18.7 knots (6.5 knots underwater), and thanks to its extra-large capacity fuel tank, it can reach a maximum range of 37,500 nautical miles at a speed of 14 knots! The maximum depth of the dive is also 100 meters.

Moreover, the Japanese army made these submarines at that time for the purpose of attacking the US mainland, so their voyage time could last for more than four months, and the combat radius could reach any corner of the world.

The I-400 class submarine was one of the best naval weapons built by the Japanese Navy in World War II, and even rivaled the Yamato-class battleships.

According to the later Baidu data, we can know the weapons of the I-400 class submarine: including a 140 mm long deck gun at the stern, 8 torpedo tubes in the bow, and a 25 mm anti-aircraft gun on the conning tower, and finally there are 3 triple 25 mm anti-aircraft guns above the hangar, in addition to 3 Aichi M6A1 "Haruarashi" water combat/bombers.

These "Qinglan" fighter/bombers can carry 800 kg of bombs or 17.71 inch diameter air-dropped torpedoes......

On the main deck of the I-400 is a relatively tall hangar, which can accommodate three folded "Qinglan".

Moreover, after completing the mission, these "Qinglan" fighter/bombers can also be folded after landing on the water near the mothership, as well as having the crane on the mothership hoisted back to the ship.

In addition, the I-400 is also equipped with a diesel engine snorkel working device, a warning radar and a radar signal receiver.

In addition, the trained crew can complete the assembly, refueling, bomb hanging and ejection of the "Qinglan" in 45 minutes. The Enormous range of the IL-400 allows it to attack targets as far away as San Francisco, Panama, Washington, or New York. Underneath the hangar there is a maintenance room for not only compartments, but also for the maintenance and inspection of submarine aircraft, as well as storage compartments for four air-dropped torpedoes, fifteen bombs, and a large amount of machine-gun ammunition and ammunition, which are protected by thick armor above these compartments......

In fact, when Chen Yanlong exchanged these I-400 Japanese submarines, he also wanted to exchange a large number of German XXI submarines.

Because these XXI-class submarines were the first class submarines used by the Nazi German Navy in the late World War II, they were also the first submarines in the world to be completely designed for underwater warfare, rather than diving for attacking and evading the attacks of surface ships in the past, and they were the prototype of modern submarines.

However, because Chen Yanlong now lacks a large number of skilled submariners to drive these submarines for combat, he can only look at the ocean and sigh lightly, and wait until the next time the number of naval personnel is recruited to many people, he will exchange them for use in combat.