The Luermen waterway is dangerous, and the surrounding sea is shallow and sandy, and it is difficult for anyone's large and medium-sized warships to go straight into the waters of Dawan and bypass the guns of the Dutch.

The favorable terrain of the body of the Seven Kuns is directly plunged into the Dog Mountain.

In this way, attacking the Dutch from the sea seems to be the only way to fight the artillery forts built by the Dutch on the Seven Kuns and the main fort of Gerancha in the front. Even if you don't consider the threat of storms at sea, from a military point of view, that's not what any smart person would choose.

However, if the Zheng army used the army to push straight from the north end along the western plain of Dayuan and attack the Qikun body from the land, if the Dutch did not have a support point on the land, they built on the sandbar of the Qikun body, facing the artillery fortresses lined up in a row by the sea, they could only fight the enemy alone, and wait to be pulled out by the enemy one by one.

Not to mention that the Seven Kun Body Sandbar is diagonally extended to the sea, and it is not 90 degrees perpendicular to Dayuan Island, and it is quite close to the Kun Body Sandbar from Heliao Harbor, which is much closer than from the Seven Kun Body Sandbar to the Six Kun Body Sandbar to the Five Kun Body Sandbar and so on. Zheng Zhilong's army could completely use small ships to carry soldiers and horses to the body of a kun.

The Dutch already had seven ships on the south side of the island, with two single-deck ships and a communications ship, plus four old lock ships. The purpose of the latter's existence was to prevent problems from the shallow waters of the Great Bay.

Even the Dutch in the south of the island, after joining the fleet led by Putmant, have greatly increased their strength. There is no reason why they have become more assertive in negotiations lately. But this is not a reason why they can ignore the weakness of their land defenses.

Whether it was the artillery forts on the tail island of the northern line, or the six artillery forts between the seven and second kun bodies, they were not something that the Dutch could rely on. Their true heritage is still the castle of Geranza.

But it was precisely because of the castle of Geranza that the Dutch may feel that no matter how bad the situation is, they can hold the castle even if they retreat into the castle.

Moreover, they have great confidence in the combat effectiveness of their own fleet, believing that as long as they act carefully and do not fall into the evil tricks of the Chinese, the victory in the naval battle will definitely be theirs.

When Zheng's army came to attack them, they could also use their navy to harass the rear of Zheng's group.

As for the durability of the war, the reserves of food, gunpowder and other materials in the city of Geranza, to put it mildly, there is no problem in eating it for a year.

Therefore, although the attitude of the Dutch in the negotiations has not yet reached the point of arrogance, they also use their own force, feeling that the Zheng group cannot help them at all, so they are full of confidence.

"Dashuai, Xiyi is like Yidi, greedy and greedy, human-faced and animal-hearted, afraid of power but not virtuous. The Dutch already felt invincible, so they were naturally very tough. My uncle thought that the negotiations between the two sides could have failed. Because when the Xiyi militarily thought that they would no longer have the fear of defeat, they would not be defeated at the negotiating table. ”

That's a brilliant statement!

Zheng Zhilong sank for a while, and said to He Hui: "Since this is the case, you go back and tell your uncle, don't be greedy for money, it is all outside the body, and talent is the most important thing." ”

That's all he can say first. But it also warmed He Hui's heart by three points.

Zheng Zhilong cares about their He family very much, and his uncle at least didn't vote for the wrong person.

And after He Hui retreated, none of the backbones of the Zheng Group present looked at the military layout map drawn by He Hui, they were already familiar with it, and they could draw the geographical map of Geranza Castle in their minds with their eyes closed.

But that doesn't mean they can come up with a quick solution.

I don't know if it's because of the difference in time, He Bin didn't propose to Zheng Zhilong to take advantage of the high tide and walk through Luermen.

Zheng Zhilong doesn't think it's all over here, He Bin is still hiding, it can only be said that there is a difference of twenty years, and it is very likely that today's Luermen will not be able to pass through large and medium-sized warships even at high tide.

What's more, the Dutch also arranged a gun fort at the northern end of the tail island of the northern line.

Zheng Zhilong, who is not at home in history, is even rarer, how did Zheng Chenggong pass through the Luermen waterway unharmed and plunged straight into the waters of Dawan? Are the Dutchmen in the fort stupid? Can't see the warships of the Zheng family's naval division?

That's the number of days.

In history, when Zheng Chenggong led his army to attack Taiwan, the fort set up by the Dutch at the northern end of the island was abandoned due to a strong typhoon, but now it still exists steadily, and the Dutch have newly arranged a lot of artillery on it to strengthen the fortress.

Of course, the Chichilou was not repaired, and the Dutch hastily built some fortifications in Heliao Port, which was far from strong.

"Big brother, since that negotiation is useless. It's better to withdraw the people and start fighting! Shi Daxuan said eagerly.

This time, Zheng Zhilong brought hundreds of warships, in addition to the twelve Western-style sailing ships, the rest of the bird boats, blacktail boats and other gunboats are also equipped with cast iron artillery, and the combat power is not weak.

Shi Daxuan had never led such a large fleet.

At the beginning, the military and commerce were separated, and the gathered warships quickly eliminated a large number of small cannons and light artillery, which of course helped to improve the combat effectiveness of the warships, and everyone knew that small cannons were inferior to large cannons.

But the question is, where did so many cannons come from?

Even the smallest bird ship must be equipped with four large and small Hongyi cannons and four large and small cannons. The ship was filled with a lot of money.

However, there were more than 200 large and small bird ships and blacktail ships in the entire fleet, and after sorting them out, the gap in artillery was as much as half.

So many guns, if they were bought from the Portuguese gunworks in Macau, or from the British, or cast by the Cheng family themselves, not to mention how expensive it was, but speed was a big problem.

Except for Zheng Zhilong, who has long had a spectrum in his heart, no one in the Zheng Group could have imagined that he had made up the artillery casting bureau at the earliest, and the artillery output was so amazing.

A large number of small and light cannons were eliminated and replaced by cast-iron artillery.

Although the gap has not yet been completely filled, at the current rate, at the end of next year at the most, all the cannons will be ready. At that time, the combat effectiveness of the Zheng Clan's sailors will be stronger.

Now the warships brought out by Zheng Zhilong are naturally equipped with full guns, and the combat effectiveness of the single ship is still far inferior to that of Western-style sailing ships, but the ants bite the elephant to death, right?

Shi Daxuan is very much thinking about going to war now, so that he can experience what it is like to lead dozens of bird ships and blacktail boats full of cannons.

In the past, such a configuration was only the level of the ships of middle and upper generals.

Zheng Zhilong looked at the look on Shi Daxuan's face, and had a strange feeling in his heart. What is this? Tubalu took the 38 big cover, and he dared to compare it with American equipment?

"There's no rush to this. What we have is time. "Even if you do it, you have to try to force the Dutch to fire first.

Looking at the layout diagram again, Zheng Zhilong laughed psychologically, he had already made a plan, and he was not prepared to rely on the sailors to recover the south of the island by force. With the memories of the original owner, he knows too well the terrain of the castle of Geranza and the port of Dayuan. I didn't plan to learn from Zheng Chenggong from the beginning. Attacking the south of the island with an overwhelmingly superior army is the best choice!

The large number of naval warships he brought to Penghu had their only task of destroying the Dutch fleet.

The Penghu Islands are close to the south of the island, and as long as they don't encounter stormy waves, they can reach the sea outside Luermen overnight.

The Zheng Junshui Division is very close to the Dutch, and the Dutch are also very close to the Zheng Junshui Division.