On the ninth day of the ultimatum, the Ryukyu ships arrived off the coast of Incheon, where Jang Sam patiently waited for the rising tide on the tenth day, but it was not suitable for Inchon to be used as a port on the south bank of the Han River to transport supplies for Seoul.

However, the Han River area is the most prosperous and wealthy area in the whole of Goryeo, and there is indeed more than one place that can be grabbed in Seoul, so Zhang San wants to occupy this place, and together with other docks on the Han River, complete the delivery of supplies.

In order to avoid being discovered at night, the fleet implemented light control at night, and Zhang San and the others went to bed early and waited for the dawn to come, because according to the estimation of local old fishermen, tomorrow morning dawn is the time when the tide begins to rise in the Incheon area.

Zhang San slept very soundly, he had experienced many wars, he had long been accustomed to sleeping in such an environment and atmosphere, until the herald blew the horn to get up, Zhang San immediately got up and dressed and came to the deck.

Zhang San looked at the river in the distance, until the four red lanterns on the reconnaissance ship were raised, and Zhang San shouted: "Send a signal!" The campaign begins! ”

After Zhang San finished shouting, the herald immediately shot three signal flares into the air, and compared with the previous order flags and lanterns, the corresponding herald methods of the Ryukyu Army, which had entered the firearms age, also increased the advanced method of signal flares.

Signal flares have a variety of colors of red, yellow, blue and green, and in a battle, the propagation speed and propagation range of signal flares are much stronger than those of the command flag and the herald in terms of recognizability, so Zhang San also introduced this advanced method.

Upon receiving the signal, the flotilla immediately proceeded to its own target in accordance with the instructions given in advance, and a regiment was divided from the main force and rushed to Inchon under the guidance of six warships of two detachments of the navy.

This force was accompanied by a 10,000-strong force of the Northern Wa Kingdom, which was responsible for occupying the port of Incheon after the landing of the Ryukyu Army, which was the advantage of having a servant army.

Originally, according to the plan of the General Staff, at least two regiments of 10,000 troops were to be put into the area, and in addition to one regiment to occupy the port, one regiment was to be sent to clear the area around Incheon along the Han River, and establish a buffer zone to prevent a surprise attack by other Goryeo troops.

Now the task of defense is entrusted to the evil servant army of the Wa Kingdom, and the Ryukyus only need to send a regiment to complete this task, and as long as the rear of this regiment captures one place, the servant army behind can continue to follow, and he will attack the next place with all his might.

In addition to this small force that was separated, the navy had six detachments and eighteen ships to clear the so-called Incheon fleet, which was the main fleet of Goryeo, and the scale was only one or twenty ships.

Rather, because the large ships of the fleet still did not enter the Han River easily, in case they ran aground at low tide, then it would be very troublesome to come up with them, so these eighteen large ships were used to attack the main fleet of Goryeo.

After finishing the matter, he wandered near the mouth of the Han River, preparing to deal with possible reinforcements, although there could be no more big boats in Goryeo, but there were still a lot of such small fishing boats, and Zhang San was still worried that if he blocked all his troops in the Han River, it would be very troublesome.

After these two troops were dispatched, the large army took advantage of the high tide and began to move into the Han River, and the fleet moved forward mightily, while the Goryeo troops on both sides were in a state of stagnation, and they did not know where the enemy came from or who the enemy was.

However, this did not prevent them from going to Wangcheng to report the news, this was a big event, the gunboats continued along the Han River, and the landing force began a rapid landing in Gaoyang, a suitable landing site.

There was actually a fearless Goryeo soldier on the shore who tried to drive the Ryukyu Army to land, after all, more than two hours had passed since the Ryukyu fleet entered the Han River and arrived here.

This force was completed from Goryeo and the size of the Royal Guard was 10,000 people, as the most elite force in Goryeo, the strength of the charge is not to be said, the Ryukyus are building a beachhead, and the two battalions of the Marine Corps are disembarking in advance.

However, the 2,000 men did not fear the enemy's 10,000 charge, but quickly lined up, and the gunboats on the river began to load, ready to assist the marines in defense.

I saw that the Ryukyu marines were lined up in eight rows, the front two rows were shields and pikemen, and the back four rows were musketeers, and when the forbidden army of the Goryeo royal fortress on the opposite side began to charge to a thousand paces, the gunboats on the river began to open fire.

The rumbling burst of artillery immediately plowed the Goryeo troops in a straight line, but as the elite troops of Goryeo, they did not break up because of this, but rushed towards the landing point of the Ryukyus more quickly under the drive of the generals.

When the charge reached 600 paces, the naval guns fired another round, but because the formation of the charge had been scattered, the effect was not as good as the last time, at this time, not only the marines began to reload and prepare for the shot, but the gunboats also began to exchange scattered ammunition to prepare for the last shot.

When the Goryeo troops rushed to 200 paces, the naval guns sounded again, and this time the effect was much better, scattering a dozen pieces, basically one cannon could at least sweep at least five or more Goryeo soldiers, and this time there were more than 100 artillery pieces that opened fire.

Therefore, this round of shooting killed more than 500 people in Goryeo, and although the casualties were huge, the Goryeo soldiers were still charging, and when they reached 180 paces, the marines of the Ryukyu Army began to shoot.

Because of the shields and spears in the front row, the Ryukyus could not use the standard three-row three-stage shooting tactic, but instead shot in an upright row and a half-squat in a row, so that the two rows were rotated each time, and the continuous firepower was achieved.

Therefore, the Goryeo army was about to rush to the enemy, but in the face of the thumping muskets, it was another tragedy, every time the muskets went off, dozens of lives would be taken, and there would inevitably be a gunshot in about three or five breaths.

It takes about 15 to 18 breaths to rush to the front of the Ryukyu formation from 180 paces, and the muskets of the Ryukyus can fire at least four rounds, taking the lives of more than 200 people, and the closer you go, the better the effect of shooting.

Therefore, by the time it was more than 30 paces, the Ryukyu Army's musket shooting hit rate had changed from about one-tenth to one-third, and more than 100 people could be killed in one round.

Looking at the unsurmountable shields and spears like forests in front of them, as well as the charge that went forward and followed like a death move, and the troops that followed behind were harvested by the monsters on the local ships every sixty breaths.

After a third of the troops were killed, the Goryeo Janissaries finally collapsed, and more recently, the Goryeo army was within ten paces of the Ryukyu Army's position, but these were meaningless.

After the Ryukyu Army landed another battalion and established a defensive position, the speed of the landing was immediately accelerated, and first the small boats carried by the large ships were lowered first, and several small boats were immediately connected into a line, covered with planks, and connected with the large ships, and immediately a floating dock was formed.

There were a total of 10 such docks, so that in a minute the Ryukyu Army could unload a battalion or so of soldiers, and with the time for ships to be replaced, it was estimated that it would only take more than an hour for all the soldiers to disembark.

However, it does take about ten minutes for the troops who disembarked in this way to complete the battalion-level establishment, and these more than ten minutes are also the most vulnerable time for the Ryukyu army, but because the Ryukyu army attacked too suddenly, Zhang San was most worried about the more than ten minutes when the Goryeo army came to harass him.