The Spanish defenders woke up from their sleep and climbed to the top of the city, the infantry picked up their rifles, the artillerymen picked up gunpowder, and everyone could already see the straggler line of the Chinese Imperial army in the distance by the moonlight.

Servette called the herald and said, "The Chinese pigs are deliberately letting us relax, and when we are slack, they will attack in a big way, and order all the troops not to slack off, and to be ten percent ready for battle." ”

The Spanish defenders were preparing for battle on this side, but Lin Fei on the opposite side ordered that from now until the early morning of tomorrow, they would charge every hour, and each charge would be launched by a company, and when this company would charge, the other companies would rest, and in this way, Lin Fei's troops charged all night, and each time they rushed to the range of the Spaniards' artillery and retreated.

However, Servetu's style of use of troops was meticulous and cautious, and he would not allow his men to let go of any attack by Lin Fei's troops, so the Spanish army was tired all night in the city.

The next day, February 8, at 8 o'clock in the morning, the old craftsman Qin Xiren sent someone back to report the progress of the tunnel excavation, the excavation of the tunnel needs to dig a deep pit first, at this time the deep pit has been dug, and advanced more than forty meters in the direction of the city wall, in the process of excavation, a small amount of explosives were used to blow up the rock, and the sound in the process of blasting the rock was very small, and it did not attract the attention of the enemy.

Because Lin Fei launched an attack at the northeast gate of the city, the Spaniards in the city focused their defensive efforts on the northeast gate of the city, and they didn't notice that someone was digging a tunnel on the south side of the city.

Lin Fei nodded, praised the old craftsman Qin Xiren a few words, and then repeated the old trick, let people take out the big banner of the execution of the Spaniards, and show it to the Spaniards, Lin Fei also asked people to make other big flags, which were full of insulting words for the Spaniards, this time he let the sniper team ride on the horse, and the two of them pulled the big flag and ran to show the Spaniards.

The Spanish army in the city was tired all night, and they were already exhausted, and when they saw the banner at this time, they didn't even have the strength to be angry, and Raceno didn't say anything at this time, just looked at Servette and sneered.

There was a burst of worry in Servette's heart, the army of the Chinese Empire on the other side was obviously using a tired strategy, if I ordered all my subordinates to defend again, it would definitely be a plan! So Servette decisively ordered that in the face of the charge of the Chinese Imperial army, only part of the troops should be sent to defend, and the others would rest.

In the blink of an eye, at 2 o'clock in the afternoon of February 8, Lin Fei received a report from the old craftsman Qin Xiren that the tunnel had been excavated to the underwater part, and Lin Fei's heart was also suspended.

Lin Fei's heart has been hanging, at 10 o'clock in the evening, Li Tianqian came back from the old craftsman Qin Xiren and reported to Lin Fei: "Your Majesty, the tunnel has been dug underwater, and there were two leaks during the excavation, but they were blocked with yellow mud, and now Mr. Qin is leading the engineer company to dig under the city wall." ”

"Now that the tunnel has been dug for a long time, the people in the tunnel are prone to the problem of poor breathing in the process of digging the tunnel, and Mr. Qin took advantage of the dark night to dig the air duct in an inconspicuous place to solve this problem."

Lin Fei frowned and said "Okay", Li Tianqian noticed that Lin Fei was not happy, so he asked: "Your Majesty, I see that you are depressed, I don't know why?" The underwater tunnel is partially gone, and there is only less than a hundred meters left from the city walls, aren't we about to finish it? ”

Lin Fei said: "Although it is true, there is a problem, that is, the remaining 100 meters are getting closer and closer to the city wall, and the vibration of the explosives blasting the stones is very likely to be detected by the enemy. ”

After listening to Lin Fei's words, Li Tianqian's heart was also tight, and he asked, "Then what should we do?" ”

Lin Fei thought for a while and said, "Order the troops, step up the attack, and firmly grasp the energy of the Spanish defenders on our position." ”

Li Tianqian said: "But Your Majesty, we have already used tactics such as mortar bombardment, all fake charges and fake charges of all troops, and now we may not be able to deceive the enemy army by using these tricks, should we think of some new methods?" ”

Lin Fei said: "Not bad! Indeed, with a new method, you immediately give an order to inform the troops that starting from the current trenches, dig tunnels to the enemy's walls, and in the process of digging, you must pay attention to protection and not be killed by the enemy's fire. ”

Li Tianqian's eyes lit up, and he said: "Your Majesty's strategy is really wonderful, we told the enemy the enemy army about the tactics of digging tunnels, but we hid the true location of the tunnels!" ”

After Li Tianqian finished speaking, he went to give an order, and the various troops immediately organized the soldiers to dig trenches on the enemy city wall, and when they dug it, it was on the ground, unlike the engineer company led by Qin Xiren who was underground, so the Spaniards on the city saw it at a glance.

The officers of the Spanish army hurriedly told the news to Servetus, who immediately ran to the city, and by the light of the moon, he saw that there were shaking figures everywhere in the distance, and the deep trenches on the ground were like poisonous snakes approaching the city walls.

Servetus knew very well that if the Chinese army was allowed to open the trenches to the edge of the city walls, the Chinese army would be able to pile up explosives under the walls, although the walls of Cotabato were reinforced with the most advanced reinforced concrete in the Spanish Empire, but that would not stop the huge amount of explosives.

Servette called the herald and said, "Order all troops to organize men to dig a ring moat three hundred meters outside the city wall to block the Chinese Imperial army." ”

Servette's order is still very level, from ancient times to the present there have been countless siege battles, there are many armies using the method of digging tunnels to blow up the city wall, the most effective way to deal with this method of warfare is to dig a ring moat outside the city wall, and then send people to garrison inside, the enemy wants to dig the tunnel under the city, must pass through the ring moat, and inevitably meet the defenders.

The herald shouted yes and immediately ran to convey the order, and the Spanish army was ready to go out of the city to dig trenches, but the Spanish army did not pay as much attention to earthwork as Lin Fei's troops, so there were not too many sapper shovels, and the Spanish army could only go to the people's homes in the city to requisition tools such as shovels and hoes.

The Spanish army borrowed shovels and dug trenches, which made Raceno very dissatisfied, and Raceno found Servete again and said angrily: "Our Imperial Army is a warrior who charges into battle, not a farmer who digs dirt and digs pits, instead of letting them dig trenches outside the city, it is better to let them attack the army of the Chinese Empire!" ”

Servette was finally annoyed by Racheno's words, and said angrily: "General Racheno, you have always said that you should take the initiative, then good, I will give you a force, which will be commanded by you personally, and you will attack the army of the Chinese Empire on the opposite side, how about it?" ”

Raceno agreed without even thinking about it, and Servette immediately said: "I'll give you a battalion of troops, what do you think?" ”

A battalion of 500 men in the Spanish army in Cotabato readily agreed, saying: "I have observed the enemy situation in the past few days and found that the enemy's right flank is weak, so I will lead the soldiers of this battalion to attack them." ”

After Laceno finished speaking, he led his troops to set off and attacked the right flank of Lin Fei's troops, as soon as Lacheno's troops came out, they were discovered by Lin Fei's subordinates, and the scouts immediately reported to Lin Fei, Lin Fei asked, "How many enemy troops are coming?" ”

The subordinate replied, "I can't see clearly when it's dark, but it should be around a few hundred." ”

Lin Fei nodded lightly and said, "This should just be a force that launched a tentative attack, not the main force of the Spaniards at all, just order the front-line troops and beat them back." ”

The subordinates conveyed the order, and soon there were gunshots from the right flank, Lin Fei's troops were hiding in the trenches, and the Spanish troops were all in the open field, so the Spanish army could not take advantage of it at all, and it was not long before the Spanish army threw a dead body and fled.

Raceno returned to the city in disgrace, and Servete said that he would not let go of this opportunity to taunt Racherno, and smiled: "I'm right, right? We can't go out of the city and attack them, can we? ”

Raceno listened to Servette's ridicule, and his heart was extremely angry, but there was nothing he could do, who let him lose the battle? So he returned to the Governor's Palace.

The governor of the city was originally close to Racherno, but seeing that Raceno had suffered a defeat, Servete's idea was proved to be correct, so he fully supported Celvert and mobilized many Spaniards in the city to help dig the moat.

The city of Cotabato was in an uproar, Lin Fei was very happy, because in this way no one would pay attention to Qin Xiren and their engineer company, and at 6 o'clock the next morning, Qin Xiren sent someone back to report: "The tunnel has been excavated to a position five meters away from the city wall, and now a deep horizontal pit is being excavated to plant explosives.

Lin Fei thought to himself that the tunnel was more than 200 meters long, there was no machinery, and it was all transported by manpower, and it would take a lot of time for 150 kilograms of explosives to be transported over, so the time for transporting explosives on the ground should be minimized, so Lin Fei called all the war horses of the sniper team and used them as pack horses for the time being, and transported the 150 kilograms of trinitrotoluene explosives that had just been transported to the tunnel excavation site on the edge of the woods.

Qin Xiren then led his subordinates to put the explosives on the door panel, pushed them to the explosives stacking place, and piled up the explosives bag by bag.

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