The people on the shore still have work to do, even if the Ryukyus are in the midst of a war and a crisis, the development of the navy still needs to be carried out step by step.

This matter, the convening of a general meeting of all the middle and high-level people, proved the importance of this matter, but there are too many things that need to be done by the Dinghai Navy, and for the expedition to the Ryukyus, it will be at least a month or two before they can get feedback, at least, at this stage, it will not affect the overall situation of the Dinghai Navy.

Everything is going well for the navy, and the biggest project at present is to establish a shipbuilding system, and everything is accumulating strength under the premise that the newly dug canal has not yet been fully completed.

At sea, the fleet that quietly sailed out of the Dinghai and headed for the Ryukyus all used the most elite sailors, who not only carried a large number of tools, but also improved the efficiency of the ships by some grades, such as raising and lowering the sails, and turning.

The emergence of various labor-saving tools has made the original extremely heavy labor for sailors become easier, and the reduction of sailors and the further improvement of efficiency have made these sea vessels, even faster than their maximum speed.

However, this ocean-going voyage, for the Dinghai Navy and the whole world, is a huge one, deep into the depths of the ocean, and has been operating in the range of 200-300 miles from the land, which is already a deep sea in a sense for this era.

In this era, once lost, it is a devastating consequence, the vast sea, without any reference, the possibility of luck to find land, that is very small, in the sea, the possibility of long-term survival is very small, not to mention the storm, even if it is water and food, it is a very difficult problem to solve.

For the Dingjun, these are not a problem at all, to put it bluntly, after dividing the latitude and longitude of the earth, it can even be accurate to 1 mile, which is a very large error for the accuracy of later generations, but not to mention the error of 500 meters, even if it is an error of 5000 meters, it can not be found on an island.

In the previous Ryukyu execution,It has been a more accurate latitude and longitude calculation,Although it is only a voyage close to the near sea,But more or less accumulated some,In the place deep into the ocean,,Don't have to think about reefs and the like,、

In this way, there are fewer offshore reef groups, and the fleet can also sail quickly, if it is the relationship between the currents, the speed will be faster, especially the Chinese-style sailing boats, under the premise of tailwind, the maximum speed can even reach eight or nine knots. After the many favorable conditions above, there is another very important issue that is in front of everyone, and that is the problem of distance.

When the distance is from 200 miles to 500 miles, it is enough to be called an expedition, but when this distance, from a few hundred kilometers at the beginning, gradually becomes thousands of miles, 2000 miles, this is no longer a small problem, that is a problem, how to cross, that is a big problem.

The speed of the Chinese sailing ship, between 4-5 knots, this is still a downwind time, the headwind time is lower, in order to ensure the speed, they also carry a partially modified spinnaker, temporarily installed on the ship, but the effect is not very good, the monsoon of this era, when it goes, is a little partial headwind, deep into the ocean, to be a little bit once, there is a spinnaker, not too low speed, but 2000 miles of voyage, it is still a very difficult.

According to the daily period of about 150 miles, it is almost 16.7 days, which is a long time, not to mention that now that summer is about to begin, there are more storms in the Ryukyus.

The sea is vast, and for those who do not have a reasonable means of ranging, this is a forbidden area, and the sea is a difficult problem since the emergence of human beings, the formation of fame, and the beginning of the conquest of the world.

This difficulty has plagued for thousands of years, although human beings still start from the place of origin and gradually go to the whole world, but the blockage of the ocean is very obvious.

Not to mention that there was contact by land, or rather, there was brief contact, which could be passed, for example, Asia and the Americas, before the discovery of the New World by the white people in Europe, the main body of the Americas was actually the yellow race.

It is said that some tribes in North Asia, under the freezing of the Bering Strait, or under the adventure of crossing, entered the Americas, and then gradually multiplied.

This statement has always been a hypothesis, and there is no reasonable or some crucial evidence to prove it.

Among the seven continents, six of the states have a high degree of similarity, the only difference is Australia, the whole Australia, his ecological environment, animals and plants, are obviously different from other continents, which also indirectly proves that the impact of the ocean on biodiversity, under the premise that human beings do not have an effective tool to cross the ocean, the ocean is a natural hazard.

According to the flow of history, it was not until a few hundred years later, after the Renaissance, that Europe gradually moved from the land to the sea, setting off a climax of developing the sea, and even in the early days of the Renaissance, their development was only the Mediterranean, which had been degraded in the position of the ocean, and became the existence of an inland sea wrapped by a continent, which was too far behind the smallest Arctic Ocean.

The Arctic Ocean covers an area of more than 13 million square kilometers, which is larger than China, and except for Russia, which inherited the Soviet Union, which is larger than here, everything else is smaller than here.

However, the Mediterranean Sea is only one-sixth the size of the Arctic Ocean, and it is not much to conquer this relatively narrow and small Mediterranean.

Now, with Zhao Xin and Dinghai, the Northern Song Dynasty began its first attempt to move towards the ocean, and at this moment, on the ship, Zhou Zhong and Sun Ji, who were full of ambition, did not realize that they had made history, about the history of China moving towards the blue sea.

The relationship between the monsoon, they are not a direct flight, but choose a road that makes more use of the wind, so that compared with the direct flight, it costs almost 20% more on the whole voyage, but in fact, the speed of arrival is faster.

On navigation, this kind of situation is not uncommon, on the common world map in later generations, there are many waterways, these waterways, not all of them are straight, straight waterways, can not bring shorter time, and even have straight lines, will delay more time.

Between two points, the closest straight line, this point, not all used at sea, aside from the reef islands, or the key straits, ocean currents, monsoons, and other factors, will have an impact on the shipping lane, even in the 21st century, under the premise of the widespread use of all kinds of ships, this is still the case, especially in the age of sail.

Zhao Xin, vaguely remembered some waterways, on the charts that had been formed by the Dinghai Navy, they had also been drawn, and they had only been tested before, and the verification nature test was carried out, but I didn't expect it to be used this time.

Even if this method is used, the total number of voyages will increase by about 20%, but the speed of arrival will be faster, it is estimated that it may arrive in 14 days, plus one or two days of free time, it will take a little more than half a month.

Far away 1,000 kilometers away in the Ryukyus, located above the location of Taipei in later generations, the settlement of the Dinghai Navy, at this time it was in full swing.

The war, in the midst of such a sudden change, came, they had no support, no backup for the time being, and the only one they could rely on was themselves.

Now, all the personnel of the Dinghai Settlement have been sent to the task, and the work that was originally used to build various buildings has completely stopped, and the indigenous population, for a long time, is much higher than that of the Dinghai Navy, especially now, the entire Dinghai Navy is completely hostile to the natives, so as long as the fight starts, the other side will already concentrate too many people.

It is necessary to stop the construction, and if the previous building is not built, it can be stopped, and when the safety is ensured, the project can be restarted.

Among the many classifications, there is one that everyone is puzzled by, that is, the Dinghai Navy sent a considerable number of personnel to cut down trees.

In the past, the navy had also cut wood, whether it was to build a room or make arrow shafts, wood was a necessity, but it was the first time that it was cut down without any difference like now.

When the settlement was opened, some trees were not cut down because of the problem of concealment, so that the height of the settlement would not be particularly abrupt, and the trees with a height of more than 20 meters were enough to give these buildings a huge cover.

Now, such a cover-up is no longer effective, the place where the problem occurred, less than 35 miles away from the settlement, no one can say why, these indigenous hunters, would choose to hunt here, but the thing has happened, and there are still people who have run away, they will definitely search here.

Indigenous tribes, they may be backward, they may be ignorant, but there is one point, the hunter team is definitely the entire indigenous tribe, a higher-level existence, they will be responsible for the supply of meat and fur of the indigenous tribes, they died dozens of them at once, for the indigenous tribes, it is a huge loss.

The landing force, in the Ryukyus, is the least, the weakest, and the only thing that can be relied on is the built defense system, so how to play the maximum role is the key.

Clearing the surroundings, on the one hand, gives defenders a higher field of view, allowing them to easily see the enemy without giving them the possibility of blocking, and similarly, minimizing their use of these trees.

The aborigines may be ignorant, they don't know what engineering equipment, that is in the Central Plains, after thousands of years of tradition, this is passed down and summarized, but these tall trees, will be used, giant trees to attack the camp, this is not summarized by later generations, as early as the summer, or even the mythical era before the summer, with giant trees to attack the walled, it is also a natural use.

A large amount of felling ensures that there are no more than two feet of trees around the house, within 500 steps, and similarly, for all kinds of woods within 2,000 steps, retaliatory felling.

500 steps of trees, will be used a variety of tools, brought back to the fortress, with the help of tools, processed into a variety of arrows, defending the city bow and arrows, surrounded by superior forces, unable to come out of the premise, bow and arrow consumption rate, will be very fast, must be prepared.

Trees within 2,000 steps will only be cut down and concentrated, and will not be treated for the time being.

Cutting down trees and clearing the field of vision, in order to be under less pressure when encountering a siege in the future, but it can delay some enemy discovery, and delay it some, at this time, if you set fire to the trees, under the thick smoke, let alone dozens of miles, even if it is one or two hundred miles away, you can easily see it.

The natives themselves have died in this area, and now, there are a lot of fireworks coming out here, what is going on, as long as there is a leader with basic judgment ability, he will make such a thought, at least come and take a look.

The person in charge of Ryukyu, named Sun Yue, is a young man, but he has a lot of experience, starting from Baozhou, step by step to become a Wupin general, in a place where there are not too many officials in the Dinghai Navy, especially in the military, he is a middle-level general.

He was sent to set the navy because of his prudence, after this encounter, in addition to searching for defense, he was ready for war, and also took advantage of a supply opportunity to increase his strength as much as possible, and passed the news back.

Although Sun Yue also knew very well that before the arrival of reinforcements, he had to defend steadily for at least a month, and there were only 3 supplies that he could rely on in the middle, and even two of them were not suitable for the military, but he had no choice.

Cleaning up the surroundings and building a more solid defense is only one aspect, and on the other hand, he has concentrated all the elite forces on hand and is responsible for monitoring the surroundings.

The natives who have fled, they do not know the settlement of the Dinghai Navy, and when the time comes, they will definitely send someone to investigate.

At that time, as soon as some people enter the area of the Dinghai settlement, they can already see that there are no buildings that cover it now, and this obvious trace will definitely come to investigate.

Then war will break out, which is inevitable, but what Sun Yue has to do is to delay the arrival of his time as much as possible, or even drag it out forever.

How to use this process of investigation, as long as the time to delay the time for these people to find the settlements and attack the settlements as much as possible, and to carry out some destruction and confusion along the way, this is the best way, as long as the war starts late, it means that the total time of the war will be reduced, and the navy will definitely have support, and even within a month, all he needs to do is wait.

The corpse of the aborigines has also been disposed of, and the traces of the scene have also undergone a series of destruction, in short, the clues that can be left for the other party have been changed and destroyed as much as possible, and then they are waiting, waiting for the natives to arrive, and then improvising.

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