However, because of the difficult and unpredictable sea routes, the sailors of almost all countries tried their best to avoid going to sea to fight. Even if the naval division goes out to sea to fight, it is only to fight one after another, or to land and clear the island and land strongholds as the main mode of operation.

In short, in the minds of almost all military personnel at all levels in the world at that time, warships were a means of crossing the sea, not a weapon of war, let alone something that could be relied on on the battlefield.

However, Wang Junlin established a powerful maritime navy, in addition to the fiasco in the original history of Yang Guang's expedition to Goguryeo, to save the situation as much as possible, and to make the Sui people die less, in fact, he wanted to control the Great Sui Sea in his own hands, so that when the Great Sui fell apart in the next step, he would be invincible.

Because the history of Western colonialism in later generations has long proved a truth: only after having sea dominance can we have the initiative to choose the land battlefield. The time and place of the war are also firmly in hand. If you want to fight, you can fight if you don't want to go back to the sea, and you can fight whenever you want, and the coastline is so long, you can completely do it as if you were in a no-man's land.

This is the same as the truth that there is no thousand miles to prevent thieves, the target of the attack is only to be beaten, if you add a strong army, Wang Junlin will have the power to dominate the world.

Moreover, the scope of the water division is far beyond the imagination of people in this era. Cavalry is already the fastest type of army marching on land in this era, but under the premise of maintaining combat effectiveness, two hundred miles a day is already the limit, but two hundred miles of sea area is not even an hour for sailors.

Just imagine, how long did it take for Wang Junlin's sailor to travel from Snake Island to Jiangdu, and how long did it take to go from Luoyang Kyoto to Jiangdu by land.

Yang Guang's expedition to Goguryeo, gathering troops to Liaodong, and then entering Goguryeo, it is impossible to prepare without three months, but Wang Junlin will conquer Goguryeo with a naval division, or transport the army to kill it with a naval division, and it will not even take a day, and there is a back road that the naval warships can retreat at any time.

Of course, it is not that the monarchs and ministers of this era can't think of the importance of sea control, but due to the influence of the performance of warships and navigation technology, there are too many uncontrollable factors for sailors to leave the land and go to the sea.

There are also warships that are not strong enough, and in the event of a storm, there is no possibility of escape on the vast sea.

This is also the reason why people gradually attached importance to sea control in the original history until the Age of Discovery.

Therefore, since ancient times, the rise and fall of the Central Plains Dynasty and the frequent wars for thousands of years have always been dominated by land hegemony, and it is inevitable that the traditional military thinking will ignore or even ignore the sea supremacy.

There is no way, the ability to sail in the ocean is too weak, but now because of the inhuman existence of Nie Xiaoyu, Wang Junlin first solved the problem of the sturdiness of the warship, and then cultivated many talents who can sail the ocean one by one, and even solved the problem of long-range attack of the warship, etc., in short, now Wang Junlin's sailors have initially had the strength to control the sea.

……

……

With the same force, one defended the city and the other attacked the city, but after an hour, the Goguryeo side defending the city lost more than 400 people, and there were no casualties among the besieging people.

The reason for such an exaggerated result was that Wang Junlin's side was able to defeat the Goguryeo people in the city, but the archers who shot the farthest on the other side could hardly shoot any of them.

Six long-range crossbows had already destroyed the unfortified gates of the prison city, but Wang Junlin did not let people rush into the gates immediately. Instead, six long-range crossbows were dismantled, and a total of twelve long-range crossbows were placed on the high ground on the left and right sides of the prison city to shoot the Goguryeo people on the city wall.

In addition, a total of twelve catapults on six thousand-stone warships parked on the shore of the harbor were projectile at the prison city.

The prison city was so big, and the Goguryeo people demolished the houses to prepare to defend the city, so there were not many places to hide people, so they were killed alive by crossbow arrows and stones, and more than 400 people were killed.

"My lord, the earthen platforms on the high ground on both sides of the prison city have been erected, do you want to use pallets to build a cloud bridge that can directly attack the prison city, and then our people will kill from the city gate and both sides at the same time."

Liu Yidong saw that the situation was very good, so he wanted to fight a quick battle and show his ability.

Wang Junlin shook his head, at this time, launched a strong attack, with long-range crossbows and the cover of catapults on the warship, it was no problem to finally take the prison city, but after the melee fight, their long-range attack advantage no longer existed.

Wang Junlin had long found that the combat strength of these two thousand Goguryeo people was not weak, the most important thing was that they were not afraid of death, and before they killed and injured the opponent to a certain extent, or destroyed the morale of the opponent, they would definitely have no fewer casualties in close combat with the enemy.

"I think that although the walls of this prison city are strong, after all, they are far from being comparable to the brick-laying rammed-earth walls that are three or four zhang thick, and the height is only more than one zhang. Let the catapults on the six ships concentrate on the walls of the prison city, and it will not be long before it will collapse, and then the enemy will not be able to hide people on and under the walls, and without the cover of the walls, our long-range crossbows will be able to shoot them at will. So, pass the order down and let everyone be more patient, our goal is not really to retake the prison city, but to kill all the enemies, and at the same time not let our losses be too much. ”

"Humble duty understands." After Liu Yidong saluted, he went to prepare.

There was really no suspense in annihilating the 2,000 Goguryeo people who were defending the prison city, to be honest, just a hundred guards around him, led by Zhang Tiangang, the insect demon and the Spring and Autumn Nu, could kill these 2,000 people in a frontal battle.

Therefore, if you want to kill 2,000 people and lose a few hundred people, it will really outweigh the loss. Moreover, Wang Junlin must consciously familiarize the officers and men with the use of their own advantages and learn the new combat mode brought about by the new weapons and equipment, after all, there will be many similar naval battles or island battles in the future.

Wang Junlin worked hard, and finally had 6,000 sailors, because the matter of Snake Island was hidden from the imperial court and Yang Guang, and he had no place to replenish the troops, so every officer and soldier was extremely precious, and it was of great use to stay behind, but it could not be lost at the beginning, and the hundred people who stayed on Bailing Island in front were killed by these people, which made Wang Junlin feel distressed for a while.

Twelve catapults on six ships continued to attack the southern wall of the prison city, and after half an hour, a section of the wall in the middle of the southern wall of the prison city could not be supported, and it collapsed violently, breaking a large hole four or five feet wide.