Chương 1649: Calm Belt Transfer Station

Most of these people are still young, probably only around eighteen years old.

Judging from their current development, if they want to reach the level of quasi-general, it will probably take another five or six years. This reality made Charlotte feel a little urgent.

"On future battlefields, only those with the strength of a quasi-general can ensure their own safety in fierce battles. You must go all out to improve your strength, otherwise, it will be difficult for you to survive on the cruel battlefield!"

Charlotte looked at everyone with a serious expression and said solemnly.

His words were like a heavy hammer, hitting everyone's heart hard.

Those who had not yet reached the level of quasi-general, their faces instantly turned serious after hearing his father's words. They realized that the responsibilities they shouldered and the challenges they faced were so huge.

After Charlotte finished speaking, he waved his hand gently, as if this wave was an order that everyone present understood.

So, people began to slowly disperse and return to their own posts or tasks.

However, time passed quietly, and there were only four months left in the year 1521 of the Haiyuan calendar.

Originally, Charlotte planned to send troops to the North Sea and launch a large-scale military operation this year, taking advantage of the excellent opportunity when the navy's strength was severely damaged after the end of the War of Marineford.

But fate always seems to like to give people some unexpected variables. Due to the appearance of the devil fruit stripper, this plan had to be postponed.

Fortunately, however, the previous combat plan for the North Sea remained only on paper, and only some preliminary preparations were made.

If a war really were to start at this moment, the Rockefeller Kingdom might not be fully prepared.

Therefore, Charlotte made a prompt decision to postpone the North Sea War to March of 1521 in the Haiyuan calendar.

This way, they have a full seven months to make adequate preparations.

At the same time, another important development was quietly taking place.

The doldrums between the New World and the North Sea, an area of water once considered impassable, now have a new mode of transportation - the sea train.

These trains are like giant steel dragons, shuttling across the rough sea, transporting large amounts of resources to the islands in the doldrums.

These islands will become the outposts of the Rockefeller Kingdom's army. They are like pearls scattered on the sea, providing important strategic support points for the upcoming war.

This sea transport line runs through the entire doldrums like a giant dragon, and all the rails are carefully made of seastone.

This precious material is not only strong and durable, but also has a mysterious power that makes sea kings stay away from it.

Even the trains running on this track are inlaid with seastone, as if they were given some kind of special protection.

This not only increases the stability and safety of the train, but also is designed to resist attacks from sea monsters.

However, that's not all.

Charlotte's genius scientist, Caesar Courant, even found the time to develop a spray that can repel sea kings.

The composition and production process of this spray are top secret, but its effect is amazing.

As long as this spray is sprayed regularly on the seastone rails and sea trains, it will emit a scent that is extremely disgusting to sea kings.

This aura was like an invisible barrier, dispersing the surrounding sea kings far away and ensuring the safety of the transportation line.

Four years have passed since Charlotte began building seastone rails and sea trains to the Doldrums.

During these long four years, this route has never been attacked by any sea kings.

It can be said that it is so perfect that one can't help but admire Caesar Courant's wisdom.

In order to further consolidate the security of this transportation line, Charlotte also set up an outpost on an island in the doldrums.

In this way, his army could attack or defend.

Once faced with a real combat disadvantage, the Rockefeller Kingdom's army would be able to calmly retreat to the doldrums and use the natural barriers there to resist the enemy's attack.

As for the enemy, if they did not have seastone hulls and ironclad ships, they would not be able to penetrate deep into the doldrums.

Because the deterrent effect of seastone on sea kings cannot be ignored, and the ironclad ships with seastone inlaid on the bottom of the ship are very expensive, costing more than ten billion berries for one ship.

Due to such high costs, even the wealthy navy only has less than seventy such ironclad ships.

However, what is even more unfortunate is that in that thrilling Battle of Marineford, the Whitebeard Pirates actually destroyed nearly half of the ironclad ships!

This undoubtedly dealt a heavy blow to the navy. Now they only had forty ironclad ships at most.

You know, building an ironclad ship is not an easy task, and it is not a task that can be completed in a short period of time.

Generally speaking, according to estimates by the World Government Shipyard, the construction period of an ironclad ship is approximately between seven and nine months.

Of course, this is already a relatively fast speed.

In comparison, the construction speed of the Water City Shipyard is slightly slower. It often takes them a whole year to build a sophisticated ironclad ship.

And what about the situation in the Rockefeller Kingdom, where the shipbuilding industry is most developed?

This country was not only the first place to come up with all kinds of ironclad ships, but also the first country to build ironclad ships at a relatively fast speed.

Even so, it took them five to seven months to build an ironclad ship.

On the vast and boundless ocean, the waves are turbulent and the vastness is endless. Only those powerful and large-scale pirate groups have the financial strength to purchase ironclad ships.

These ironclad ships are extremely strong, like steel fortresses on the sea, and are intimidating.

However, for most ordinary pirates, the high price of ironclad ships is undoubtedly an insurmountable obstacle.

They can only helplessly choose the second-class ships, that is, hybrid-powered ships.

This boat cleverly combines canvas with turbines to form a unique power system.

The exterior of this hybrid-powered vessel is usually covered with a layer of iron, giving it a sense of sturdiness and durability.

But in fact, its internal structure still uses the traditional wooden frame, which not only retains the flexibility of wooden ships, but also adds a certain degree of protection.

At the same time, the ship is equipped with an engine to provide additional power support for navigation, making its speed no less than that of a real ironclad ship.