All gods, the lord who started with the bright sword

As with any strategy, the first use is the best.

Because it was unexpected, others did not expect it, did not make effective defenses, and a hasty response would not be effective.

Once used for the second time, the enemy is ready, it will not be so easy.

Having destroyed the Japanese artillery that had ambushed them, Li Yunlong's convoy continued on until the early morning of the next day.

boom!
An explosion was heard in the distance.

Li Yunlong, who was in a slumber, sat up from the bed with a grunt: "Where is the cannon?"

There was only a lonely explosion, not quite like being ambushed.

The news from ahead came quickly. A escort boat hit a mine, and a hole was opened on one side of the ship, which was basically half useless.

It's not a big deal to scrap an escort boat, just send another one.

The key mine is not just one!

The layout of this thing must be a large area, just like a landmine.

The channel of the Ayeyarwady River is so wide that the Japanese can block the channel with mines.

Although Li Yunlong has the prospect of the fleet, he knows two of the three knowledges of naval command and knows nothing about it.

However, the basic principles are universal.

"If there are mines, there must be mines. Don't we have mines in the Sichuan Army?"

Li Yunlong asked the commander of the escort fleet, who was a lieutenant commander recruited from modern times and had extensive command experience.

The major replied seriously: "Of course we have minesweepers, but the number of mines is huge and the types are different.

Without knowing the situation ahead, I dare not guarantee when the queue will be finished. "

The army's offensive requires the speed of soldiers, and Li Yunlong looked like a difficult commander. The major put the ugly words first.

"Really? Then let people quickly clear the mines, and you can talk to me carefully."

The major went out to make some arrangements, and the fleet anchored on the river.

The four minesweepers traveling with the team were ordered to clear the mines immediately.

"Like laying mines on the ground, sea mines can also be laid in water.

Attack enemy ships that touch or approach by semi-submerging or fully submerging.

But in fact, mines in the water are more sensitive, and they are easy to deploy, but you have to be very careful in detonating them.

This is why minefields are not a secret, but it is extremely difficult to clear them. "

The major went back and forth, and when he introduced the situation of the mines, he emphasized the difficulty again.

Li Yunlong frowned, the words of reprimand came to his lips, but he swallowed them back with force.

If you are in his new group, whoever dares to push him back and forth, you must give him a tight grip.

This is the Sichuan Army Corps, so Chen Hao has to give Chen Hao a face, so he can't teach his subordinates a lesson.

Well, in fact, Li Yunlong really doesn't understand naval operations, and it's too stupid to point fingers as a layman.

Li Yunlong continued to listen carefully, trying to understand the principle.

Or prove that the major in front of him is deceiving him, and mine clearance is not difficult at all.

The major continued to introduce to Li Yunlong that in fact, the navies of various countries have a way to deal with mines, and that is minesweepers.

This is a special vessel specially used to clear the channel and protect the safety of subsequent ships.

Naval mines first began to be deployed on a large scale in the early 20th century, especially during World War I, which reached a phased peak.

In order to clear a path for their own ships, countries have developed their own mine-sweeping equipment.

For example, fixed-wing aircraft, wooden hydrofoil drag bodies, floating trucks and so on.

However, they have a single function and are not reliable. The truly effective mine-sweeping platform must belong to the mine-sweeping boat.

However, the minesweepers at that time only had the function of minesweeping, and no one had specially built a hull for them.

Therefore, most of the minesweepers during World War I were transformed from ordinary civilian steamships.

This improvised ship could still handle World War I.

In the face of more powerful and complex mines during World War II, this kind of minesweeper was no longer enough.

World War II mines even had timers and ship counters.

The United Kingdom even deployed anti-minesweeping mines to deal with German minesweepers.

The minesweeper may need to sweep back and forth several times before being confident that the mines have really been cleared.

The mine-clearing equipment of minesweepers looks varied.

In fact, there are only two categories, namely induction type and mechanical type.

Inductive types are capable of countering mines that detect ships' sound, magnetism, and pressure changes.

The mechanical type directly deals with mines that rely on cables to detonate.

Those floating mines that can be seen are the best to deal with, and can be destroyed directly with ordinary artillery.

But as long as the mines are hidden underwater, they can only be dealt with by minesweepers.

"The escort boat suddenly encountered a mine, which should be hidden in the water." Li Yunlong analyzed.

The major nodded slightly: "It should be like this, but there are many types of mines, and the details depend on the frontline observation."

Li Yunlong poured a bowl of herbal tea and handed it to the major: "Go on."

There are many kinds of mines, but he knows that mines and mines belong to the same family, which aroused his interest.

After the major came, he specially studied relevant materials, and he had some understanding of the types of mines owned by the Japanese army during World War II.

There are mainly three types.

The most common are magnetic mines, which are mines that induce magnetic fields to detonate.

As long as a metal ship passes by above, the fuze will be triggered.

Therefore, when their minesweepers deal with these mines, they will extend a pair of minesweeping equipment far away like a combine harvester.

The inside of this appliance is full of dense coils.

After electrification, a strong magnetic field is generated, simulating the illusion of ships passing by, and deceiving magnetic mines.

The magnetic mines sensed that they would be detonated in large numbers, blasting water jets one by one.

The minesweeper is safe to drive back and forth twice, enough to detonate it cleanly, so the efficiency of mine clearance is extremely high.

After hearing this, Li Yunlong showed joy: "That is to say, if the little devil planted a magnetic mine, it will be swept away soon, and we can continue to set off."

"I'm afraid it won't work."

The major said solemnly: "It is rare to plant only one type of mine, but several kinds of mines are buried together. You are a veteran who has experienced many battles, and you should understand this truth."

"Oh, that's right. I lead a new regiment, and they all use iron shell mines and stone mines together. The little devil's engineer's eyes are wide open, and he can't clean it."

Li Yunlong couldn't help recalling the hard times back then.

A mine shell made of pig iron by a blacksmith and filled with black powder is a land mine.

The power is similar to the hand grenade made in the border area. The little devil may not be killed if he stepped on it.

However, it is a good plaster that can pull out pus.

In this way, the number is limited and many troops will not be able to use it.

Coupled with the scarcity of pig iron resources, some people have researched out stone mines that are hollowed out and filled with explosives.

The power is about the same as that of an iron shell landmine, the key point is that it is not made of iron.

The mine-sweeping tool of the little devil engineers is to use electromagnetic waves to detect iron to determine whether there are mines buried underground, but there is no response when sweeping on stone mines.

Mixing the two types of landmines made the little devils' engineers feel unconfident.

Thoughts are drifting away, and various mines are arranged together, which has the same effect.

The Japanese army also has two types of sound-activated mines and pressure mines.

Sound-activated mines are triggered by the vibration of the propeller or the engine.

This is specifically for the characteristics of the ship.

Therefore, under the condition of ensuring its own silence, the minesweeper only needs to slowly approach the water area where the sound-activated mine is deployed, and release the noise hammer that can create huge vibrations and noises.

The huge noise directly triggers an underwater explosion, which induces the sound-activated mine to detonate.

This is the best deflection of all mines, easier than magnetic mines.

After all, sound waves travel fast.

But the last type of pressure mine is very difficult.
The detonation method of this kind of mine is rather peculiar. They can detect the change of water pressure above the mine.

Before deployment, they have been entered into the tidal fluctuation data of the deployment waters in advance, and have the ability to remove these slow water pressure disturbance factors.

But when the ship passes by, it will trigger the pressure mine to explode.

Due to the special structure of mines, pressure mines cannot be detonated in advance.

So the best way is to use some small minesweepers that are strong and reliable, even if they are bombed, they will not have much problem.

The ships sailed through the minefield, deliberately triggering the mine explosion.

In this way, the cost will be raised, and no matter how strong the minesweeper is, it will not be able to withstand being bombed, and the chance of sinking will be greatly increased.

Therefore, minesweepers are small and have relatively few personnel to minimize possible losses.

Li Yunlong probably understands that magnetic mines and voice-activated mines are not difficult to handle, but the most difficult thing is pressure mines.

"The difficulty you have been emphasizing is that you are worried that the minesweeper will not be able to go through the pressure mines, right?"

"Yes, there are only four minesweepers following the convoy. We cannot judge how long the Japanese army has laid out the minefields and whether they are enough."

Because I don't know how many sea mines have been buried in the waterway ahead.

So the major never dared to speak up.

He would rather say what he said before and be reprimanded now than wait until he fails to achieve his goal. What will delay the whole battle is the big event.

Li Yunlong, who had figured out what was going on, of course had no reason to blame others, and even praised the major for his good explanation. As a layman, he understood.

All we can do now is wait, hoping that the minesweeper will clear the mines.

Call the minesweeper from behind, it won't be able to arrive in a short while, it will take too much time.

This place is still a day's flight away from Yangon, and it is not impossible for the army to land and go ashore.

The key point is that it has been raining a lot these days, and the Burma Highway has become a muddy road.

Tank infantry fighting vehicles are all crawlers, so it is no problem to walk on muddy roads.

But this is really a strong test for the truck, even the speed of the tank can't reach half, and it will only be left far behind.

Even if it is slower and takes a little longer to arrive, what is this little force and material enough for?

It is too difficult to transport logistical supplies by land. If the waterway cannot be unblocked, the Sichuan Army's offensive rhythm will at least be cut in half.

For this consideration, Li Yunlong is willing to wait.

"Deputy Commander Li, in addition to mines blocking the waterway, the Japanese army may also use sunken ships or obstacles to block the waterway. We have to divide our defenses!"

The major's forward-looking proposal caught Li Yunlong's attention.

At the headquarters of the regiment, Chief of Staff Wang Yunshan held the telegram in his hand and sent out the same question: "Is there such a possibility?"

"The dog jumps over the wall in a hurry. It's not surprising that this method is used."

Chen Hao stuffed the last bit of bun skin into his mouth, and drank it down with tea.

Hearing the help telegram sent by Li Yunlong, Chen Hao immediately understood the intention of the Japanese army, and tried every means to prevent the Sichuan Army from attacking by sea.

Roads, railways, waterways, the importance of the three is from the back to the front.

The prerequisite for any army to attack is to ensure logistics. Without logistics, it will be impossible to fight.

Waterway transportation is convenient, greater than railways and roads.

The British built railways in Burma, but they could not use them for this battle of the Sichuan Army.

Once the most convenient water transportation is blocked, there is only a muddy and difficult road transportation line that is often attacked by guerrillas.

The operational risk of attacking Yangon will suddenly increase by at least [-]%.

Wang Yunshan agreed with Chen Hao, but he still didn't understand: "Tuan Zuo, using a sunken ship to block the river is not a small project. Would the Japanese do it?"

"Have you heard of the Maginot Line on the water?" Chen Hao asked him.

Wang Yunshan pondered for a while: "Is it the case of Jiangyin's shipwreck and closure of the river?"

"That's right, the National Palace's Floating Maginot Line is top-secret and impenetrable!"

Chen Hao thought it was ridiculous when he said it.

France's Maginot Line, known as impregnable, became a joke under Germany's Blitzkrieg.

The Guofu Water Maginot Line did not play its due role either.

This Water Maginot Line of Defense was specially built after the outbreak of the Songhu Battle to prevent the Japanese navy gathered in Shanghai from raiding the capital from the Yangtze River.

On the Jiangyin waters of the Yangtze River, eight warships and twenty merchant ships lined up in a row, and then sank slowly.

Relying on these more than 20 ships to block the vast Yangtze River is not enough.

Then, in order to fill the gap in the blockade line at the bottom of the river, the navy requisitioned 185 civilian ships and salt ships, filled them with stones and sank them into the bottom of the river.

However, the "underwater blockade" built in Jiangyin did not play its due role.

Although the Japanese army failed to march westward along the Yangtze River, they marched overland and captured Nanjing.

The Maginot Line on the water was finished earlier than the Maginot Line on land. Did the staff office, who didn't know the moral will, get inspiration from this? !
It is not impossible for the Japanese army to learn to do so.

The situation was very different from that in [-]. They were on the defensive against the Sichuan Army, and they would not let go of any means to weaken their opponents.

"If the Japanese army really did this, and the waterway could not be dredged for a while, the logistics and transportation pressure of our army would suddenly rise to a higher level."

After a little analysis by Wang Yunshan.

He thought of the huge demand of the troops for ammunition supplies, and he couldn't breathe for a while.

The combat power of the Sichuan Army is built up by ammunition, and the ammunition cannot be replenished. Isn't this killing the frontline troops!

Or kill the logistics force.

Anyway, one of the two must die.

Seeing his frowning expression, Chen Hao chuckled lightly: "Just blow up the boats used to block the river.

Now that the air supremacy is in our hands, it is not difficult to ensure that every move of the Japanese army on the waterway is in our sight! "

After Wang Yunshan thought for a while, he knew that what Chen Hao said was correct.

The original sorrow on his face dissipated in an instant, and he couldn't help but lament that air supremacy is a good thing.

If there is no air supremacy, I don't know how difficult this battle will be!