Then, in the French West Indies, the local French fleet was also disarmed, and Ballista operations were a complete success in both areas.

However, this did not satisfy the British Navy.

The port of Toulon is on French soil, and the British Navy has nothing to do, but the French Navy in the French North African colonies can fight for it!

June 5, early morning.

On the Mediterranean, there are not many waves.

Due to the geographical location, many times, the Mediterranean Sea is not a sea, but a bathtub, and the countries along the Mediterranean coast have absolute control over the Mediterranean, specifically, France and Italy, are definitely in the vanguard.

Reflected in the construction of warships, the specifications of their navy's ships, many times, are formulated with reference to the sea conditions of the Mediterranean.

The night was quite peaceful, the weather was very good, the sky was extremely clear, and you could see the stars blinking.

At night, it will provide quite good cover, and at this time, in the night, a submarine is sailing in a floating state.

The U73 submarine, this submarine sneaked through the Strait of Gibraltar and slipped into the Mediterranean Sea half a month ago.

Now, the Strait of Gibraltar is still under the control of the British, and in order to ensure the interests of the Mediterranean, the British have set up layers of listening devices, as long as there is engine movement underwater, they can detect and then attack.

Unfortunately, the British did not know that the German Navy had long mastered the characteristics of the sea water in the Strait of Gibraltar.

Because the Mediterranean air is controlled by the current direction of the subtropical high pressure zone, the precipitation is light and the rain evaporates, so the salinity of the Mediterranean sea is higher and denser than that of the Atlantic, but the sea surface of the Mediterranean Sea is low.

In this way, a density flow is formed in the Strait of Gibraltar, with the sea flowing eastward below the surface up to 400 m and the sea flowing west below 400 m, which forms the density flow.

This density current was simply prepared for the German Navy, and when their submarines dived out of the Mediterranean, they turned off their engines, descended to a deeper area below the surface, and flowed out of the Mediterranean Sea to the Atlantic Ocean with the current, and when they returned, they raised the submarine to a shallower area, turned off the engines, and followed the surface current back to the Mediterranean.

As long as you don't turn on the engine, it will be as quiet as a fish.

Of course, now they are much more convenient, with the surrender of France, they can find a port in the south of France at any time, and the sea power in the Mediterranean will soon fall into the hands of the German navy, and there is no need to enter and exit Gibraltar dangerously.

Moreover, what they don't know is that the Strait of Gibraltar has long been on the Shirek strike list, and it is only a matter of time.

Now, the submarine U73 is on float.

Now, German submarines have been installed with snorkels, which can start diesel engines for navigation without surfacing as long as the snorkels are exposed.

However, it is very uncomfortable for submariners to stay in cramped submarines all the time, so whenever there is an opportunity, the submarines will still surface and let the submariners alternately go to the bathtub above the control tower to breathe.

In fact, during World War II, submarines were still afloat for most of the time, and only after discovering their prey would they switch to submarine.

And now, in the bathtub, the sailor Lucas, is greedily breathing in the fresh air mixed with the sea breeze.

In a submarine, even if there is a snorkel, what you breathe is air mixed with the smell of diesel, which is very uncomfortable.

The top of the conning tower, also known as the bath, is common in the Atlantic Ocean where the waves are rolling because the sailors here are often wet when the waves are high.

However, in the Mediterranean, it is rare, here is more like a gentle girl, every move, a wave, are so elegant.

Everyone, only two minutes, and also responsible for monitoring the surrounding sea situation, just when Lucas had just breathed a breath of fresh air, his brow suddenly wrinkled, his eyes looked at the pitch black sea in the distance, there was a little light on it, his ears, pricked up, carefully listening to the roar of the engine in the distance.

"Discover a fleet!" Lucas shouted loudly, "It's in our direction of nine o'clock!" ”

"Quick, battle alert!" With Lucas's notification, Captain Helmut immediately gave the order.

A few people on the bathtub ran down quickly, and Lucas, who ran down at the end, closed the hatch, which was a very common action, but the most important.

In battle, everyone's nerves will collapse, and at the same time, various accidents may occur, such as forgetting to close the hatch.

This is not without precedent, there have been submarines who forgot to close their hatches, and as a result, after an emergency dive, never came up again.

And now, the German submariners are the most well-trained, and they will definitely not make any low-level mistakes!

"The first ballast tank is filled with water, ready for dive, the snorkel is raised, the periscope is raised, the switch to the battery is ready, and the diesel engine stops." Helmut gave battle orders one by one.

If you look from the outside, you can see that the bow of the submarine is sinking rapidly, and the bow rolls a few waves before it submerges into the sea, and then there is the conning tower.

When the conning tower is submerged in the sea, the side of the conning tower, the snorkel is slowly erected, and the periscope is stretched out from the middle.

The snorkel does not provide air to the diesel engine, but to provide fresh air to the submarine, and when the submarine is attacking, it is necessary to turn off the diesel engine.

Because the diesel engine is too noisy, with the continuous development of underwater listening technology, the noise of the diesel engine will be transmitted far away.

However, the energy of the battery cannot be compared with the diesel engine, and when the battery is used, the speed will be reduced.

Helmut's eyes were staring at the periscope, and now, with the help of the moonlight, he could only see everything on the other side, and his hands, turning the periscope, looked at the opposing fleet, and couldn't help but say a sentence in his mouth: "We found a big fish, the bow torpedo tube, all loaded, fixed depth 10, ready to launch!" ”

On the other side, it is definitely the main force of the British Navy in North Africa! The British, at last, dragged out their navy in the colonies!

In between the other side's voyages, Helmut saw two tall warships that went straight to the deck, which were the aircraft carriers of the British! Although he couldn't see it clearly, Helmut could guess that it should be the British aircraft carrier Eagle and the Hundred-Eyed Giant.

If you can take out one, it would be great!

However, then, Helmut frowned, no, the other party is too fast!