Due to the limited manpower of the Spaniards, there were few military personnel outside the city of Santo Domingo, and only a few immigrants who knew how to farm were in the plantations to guide the natives in the fields. It's not that the Spaniards are lazy and unwilling to go out of the city to do things, but because they have suffered many hidden losses in the development of this area, and have been plotted by hostile indigenous tribes in the forest many times, and there are double digits of people who have died in Tamsui before and after. Although this is a thing of the past, the shadow that remains in the hearts of Spaniards is difficult to erase. Guersman, the governor of Santo Domingo, had to impose a ban on Spaniards who were not allowed to go outside the city unless necessary, and even after nightfall.

There were no light and dark posts, no patrols, and almost completely abandoned the perimeter defense line, and such a defensive deployment method undoubtedly left ample room for the reconnaissance platoon to operate. As long as Chen Yixin kept the reconnaissance platoon's forward route and did not directly step into the plantation area, the Spaniards would basically not be aware of the existence of this secret force, and even if the occasional plantation laborer noticed that there were people in the forest, they would only think that it might be the hunters of the indigenous tribe hunting in the forest. Of course, due to the ban and many lessons learned, no one would dare to enter the forest to check the real situation, so the activities of the reconnaissance platoon in the outer area can be regarded as unimpeded and unscrupulous.

The only thing scouts need to be careful with are the poisonous insects, snakes and ants in the dense forest, these creatures lurk among the dense foliage, and will attack those who pass by at any time, far more threatening than the Spaniards who are cowering in the castle. Fortunately, these veterans have been in the tropical jungle for many years, and they have their own set of methods to deal with these hidden killers in the forest, and no one has been injured due to this kind of accident in the past two days.

Over the next two days, Chen Yixin led his team around the Spaniards' base for most of the circle, reconnoitering their terrain and defenses from all angles. The result can be said to be mixed, the good news is that the Spanish perimeter defense is almost completely abandoned, which is undoubtedly good news for the Haihan who want to seize control of the place by military action, and the worry is that the terrain of Santo Domingo is more favorable to the defenders, and it may not be easy to take it when the time comes.

Although Chen Yixin was convinced that his own strength was enough to take this ∫√ diǎn, he also had to admit that if he didn't have special means, he wanted to conquer this dǐng∫√diǎn∫√ Xiao ∫√ said, .2∨3.o◎s_(); A castle is probably not something that can be completed in a day and a half. The plan for the present is not to pursue a quick victory, but to consider how to cut off the connection between this place and the outside world, besiege the castle, and then slowly attack.

Regarding this alternative, Takahashi Minami had prepared for it in the battle plan before. The overland passage from Tamsui to Chicken Coop is to follow the Chicken Long River, a tributary of the Tamsui River, up the river through the valley between the Taipei Basin, Yangmingshan and the Central Mountain Range to reach Chicken Coop Harbor. In the upper reaches of the Jilong River, about 30 miles from Santo Domingo, near the famous Yuanshan Hotel in Taipei, there is only an extremely narrow riverside path sandwiched between the foot of Yangmingshan Mountain and the Jilong River, which is also the only land passage between the two places. If the Haihan militia wants to cut off the land link between the two places, all they need to do is deploy a small number of troops here, supplemented by fortifications and heavy firepower.

The night before the retreat, Chen Yixin decided to personally explore the condition of the local riverside wharf. After nightfall, the group laid down the improvised bamboo raft on the upstream river beach and slowly paddled downstream along the river bank.

There was no public lighting outside Santo Domingo, and the area, including the docks, was completely dark, which also provided excellent cover for the actions of Chen Yixin and others. It took half an hour for the group to arrive at the dock area outside Santo Domingo.

It is said that it is a wharf, but in fact, it is just a few trestle bridges built on the shore to facilitate the docking of ships that come to transport supplies, which is not at the same level as the comprehensive wharf built by the port operated by Haihan. The people rowed the bamboo raft to the side of the trestle by the moonlight, fixed it under the trestle with a rope, and then climbed ashore one by one along the feet of the trestle. Only two people were left on the raft to take charge of the response, and by the way, they used this time to measure the water depth and flow speed near the pier.

Chen Yixin dared to lead the team to sneak in the dark, of course, it was not that he was not prepared, and the magic weapon he relied on was the RNO640 binocular thermal imager that Qian Tiandun specially transferred to him from the munitions depot before departure. This American-made military thermal imager was one of the high-end military products purchased by the North American Gang before the crossing, and because of its high six-figure price, only two were purchased at that time, one of which has been allocated to Qian Tiandun for safekeeping. Electronics pay for what you pay for, and the quality of nighttime imaging is far better than that of relatively simple head-mounted night vision devices.

With the help of this treasure, Chen Yixin can easily find signs of human activity 100 meters away, so that he can avoid it as soon as possible. However, the reality is that his tool does not seem to work, because there are no people in sight, and there is no sign of guard activity even on the distant city head.

"The nerves of these Spaniards are really thick enough!" Chen Yixin was also a little speechless about the low vigilance of the Spaniards. Haihan's Shengli Fort in Sanya has not been attacked by foreign enemies since it was fully completed, but the defensive force on duty has never been relaxed, and there are two shifts of guards on duty every night, and there will be irregular patrols outside the fort, which will be as careless as the Spaniards. With such a military element, it is no wonder that after they settled here, they were killed by the natives with primitive equipment one after another. If the opponent was replaced by the Haihan militia group, or even the special operations battalion under Qian Tiandun, Chen Yixin estimated that the casualties of the Spaniards in the same time would be at least dozens of times the original number.

The settlements outside the city were sparsely distributed, and the Spaniards did not seem to have bothered to carefully plan the small number of people, and the wooden houses of the lower class laborers were scattered scattered in the wilderness, and there was little cover for the castle on the hillside. If this kind of town planning were to be placed in a colony under the rule of Haihan, then the person in charge of related affairs of the Ministry of Construction would probably have to be dragged out by the executive committee to play the board. Obviously, the Spanish paid very limited attention to this place, probably limited to the "occupation of this place and not let the Dutch do it", and there was no overall planning and long-term development goals.

Of course, if the Spaniards really valued the colony on the island of Taiwan, they would not have waited for the Dutch to become a climate here before they hurriedly sent people to build a colony. The level of development of the colony is indeed closely related to the attention of the high-level people, and compared with Haihan's intentions for each new colony, Chen Yixin seems to be able to understand more why this old maritime empire has gradually embarked on a downward slope in the recent period, and slowly lost its first-mover advantage in front of the opponents competing in the same field.

Chen Yixin originally wanted to lurk near the city to see the state of the city defense, but his subordinates desperately delayed him and prevented him from going in person. For these veterans, Chen Yixin, as the "chief", his personal safety is much more important than the lives of these big-headed soldiers, and it is an extremely risky move to reconnoiter here, how can he still be under the nose of the enemy. At that moment, two people forcibly snatched the errand and quietly felt in the direction of the castle, while the others lurked in the out-of-town quarters waiting for news.

After about forty minutes, the two scouts returned unflawed, and their close-range reconnaissance did not alarm the castle defenders. So the group quietly retreated to the riverbank, still taking the bamboo raft that had come to leave the pier and rowing to the mouth of the sea downstream.

After landing at the mouth of the sea, the detachment cut the rope that bound the bamboo raft and let it float into the sea in a scattered manner, leaving no suspicious traces. Chen Yixin and the others took a short rest on the shore, ate a diǎn dry food supplement, and then marched north along the coastline overnight. They were to arrive at the rendezvous at sunrise at Diǎn, rendezvous with another detachment returning overland from the upper reaches of the Tamsui River, and leave by boat.

At four o'clock in the morning, the two detachments met along the line, and after waiting for about an hour, the Canton ship that had brought them here reappeared at sea. During the three days when the reconnaissance platoon landed, the ship would visit at this time of day in order to be able to pick them up in time for them to leave the area in case of an emergency.

The whole retreat went smoothly and there was no trouble. Little did the sleeping Spaniards know that Impermanence had already made a turn around their door. When the Haihan people come back next time, they probably won't have the chance to sleep so peacefully again.

A day and a half later, Chen Yixin and the reconnaissance platoon returned to Magong Port in Penghu, and Qian Tiandun personally went to the dock to greet him after receiving the news. During this reconnaissance operation, which lasted more than six days in total, the team basically completed all the scheduled reconnaissance missions in the target area of the Tamsui estuary, with zero casualties and no surprises at all. If you have to find fault with this operation, it is probably just a failure to recover intelligence value from the local area. But doing so would most likely expose the reconnaissance and thus alert the Spaniards, and Haihan already had José as a source of information in his hands, and it was not very meaningful to capture the live mouth from the local area - unless it was a direct capture of the opposing officer's officer or other administrative officer, but the local Spaniards rarely left the castle to go out, and the possibility of such a capture was very small.

On the same day, Qian Tiandun set up a banquet for Chen Yixin to wash the dust, and after he was full of wine and food, Qian Tiandun began to mention the matter: "I have been busy over there for a few days, how do you feel?"

"The Spaniards weren't as good as we expected, but attacking the castle was still a bit difficult. Chen Yixin put down his chopsticks and informed Qian Tiandun of what he saw in the local area. For this kind of special terrain armed base, Chen Yixin also wanted to hear Qian Tiandun's opinion, after all, he had commanded a lot of tough battles in this time and space, and there would definitely be more effective tactical arrangements.

"The castle is built on a hillside?" Qian Tiandun thought for a moment, then continued to ask, "Is there any other cover on the periphery?"

"Not at all, I think the Spaniards have completely abandoned the means of defense on the perimeter, no bunkers, no posts, no cordons. Chen Yixin reflected on what he had seen, and at the same time responded to Qian Tiandun's question: "I think their vigilance is quite low, and it is estimated that they did not expect to encounter the situation of foreign enemy soldiers approaching the city, and they also lack the corresponding means of refusal." The Spaniards probably pinned their hopes on their fortifications, as a possible foreign enemy would probably only be able to send troops to the area through the Guò Tamsui River, and they would only have to deal with threats from this direction. ”

The Spaniards probably used up all their enthusiasm when they first selected the site for the construction of the fortress, and the location of the city of Santo Domingo was indeed extremely advantageous to the defenders, although the downstream estuary impact plain was flat, it was difficult to drop heavy equipment such as artillery on the shore, and there was no road to the area where the city of Santo Domingo was located, and the landing of large forces in the local area would face the difficulty of quickly transporting equipment and baggage to the front line.

And if the enemy forces try to use the Guò Tamsui River to send troops upstream, the situation is not much better. First of all, it is difficult to avoid the surveillance of the Spanish diǎn located in high places, and it cannot achieve the effect of surprise soldiers. Secondly, the banks of the upper reaches of the river are almost all primeval forests, which also cannot allow the army to quickly pass through the heavy equipment required for combat.

If you want to attack the local area, you will have to face fire from high places if you want to land on the pier below the city, and if you choose to land a little farther away, it will be difficult to quickly put heavy equipment into the battlefield. This is undoubtedly a dilemma for the commander.

"It's embarrassing!" Qian Tiandun sighed as he touched his chin. If the special operations battalion wants to attack head-on, of course, it also has a great chance of conquering the Spaniards. But the problem is that the special operations battalion will inevitably suffer casualties if it uses this tactic, and it is likely to be a figure that is unacceptable to neither Qian Tiandun nor the military. Qian Tiandun would never let the elite he had painstakingly trained to carry out such a low-level tactical task of exchanging human lives for battle results.

"If you use siege tactics, what do you think?" Qian Tiandun could only change his thinking.

With the strength of the naval and land forces stationed in Penghu, it is not too difficult to cut off the water and land passages between the local area and the outside world at the same time. According to José, the city of Santo Domingo is very dependent on supplies from Chicken Coop Harbor, and almost always sends a batch of supplies from El Salvador to the local area every month. If you use siege tactics to cut off its supply routes, it seems to be a good option.