Most of the siege team of the security army outside the naturalized city retreated, leaving only a few heavy artillery pieces to bombard the city wall, which were the new products of the Zhongyang Arsenal of the security army. In order to strengthen the defense of Fugu, it was not long to transport to Fugu, Zhang Chu decided to attack Guihua City and transported them here again, the heavy artillery loading speed is not fast, but the firepower is full, every time a cannon is fired, the huge iron ball will be smashed into the city wall out of a big pit, the bricks and stones are flying, and the Houjin soldiers guarding the city wall are killed and injured from time to time.

Zhang Chu brought a large amount of gunpowder and cannonballs, and wanted to test the power of these cannons, so that the Houjin people could also see that not everything can be solved by being skillful with bows and horses. The artillery of the security forces was not in a hurry, and according to the artillery regulations, as if it were an exercise, they threw shells at the city wall one by one.

The Houjin soldiers in the city are not so easy, Huang Taiji is a long-distance attack to capture the naturalization city, and he did not bring artillery at all, the embargo of the Ming Dynasty on the grassland has made Lin Dan Khan poorer and poorer, and there is no artillery in the naturalization city, and now the Houjin people are only beaten, no matter how powerful the bow and arrow are, it is useless, and the security army just does not enter the range of the bow and arrow, what can you do.

The security army rested all morning, and at noon had a full meal before returning to the city wall, this time Leng Geli resolutely did not be fooled, and ordered the observation post in the city to pay attention to observation, and the other soldiers hid under the city and did not go up to the city, only when the security army really attacked.

Sure enough, the security forces did not attack, but each took out a shovel on his back and dug up the soil.

The lookout immediately reported the anomaly to the Chief, and finally to Leng Gri. Digging the earth, if the enemy wants to dig a tunnel into the city, it will take a long time.

Leng Geli immediately ordered people to collect large water tanks and put them upside down near the city wall to listen to the sound of digging tunnels.

In this way, he was not at ease and decided to go to the castle tower to see it himself.

The guards found a few large shields and put them on Leng Geri's head, regardless of the psychological comfort in advance.

Leng Geri observed the movements of the security army through the gap in the shield, and the security soldiers first dug a pit under their feet with shovels, and piled the soil on the side close to the naturalization city, and then the pit was dug deeper and deeper, and the pile of dirt was blocked, and the security soldiers digging from the top of the city were almost impossible to see.

Leng Geri was confused, digging tunnels is also concentrated to one point of digging, how can there be scattered, each digging its own.

The security forces dug a foxhole in front of the city and began to dig on both sides to connect with the others, but instead of digging a tunnel, they dug a trench.

Leng Geri was stunned to look at this thing beyond his comprehension on the city, what is the use of digging a trench on one side of the city without besieging the city or besieging it for a long time?

The security army dug a trench and dug several trenches in the direction of the city wall, and the soldiers of the security army followed these trenches forward into the range of the bows and arrows on the city wall, and began to dig up the earth again.

Although Leng Gerry didn't know what the security forces wanted to do, experience told him that he had to do something. Otherwise, if the enemy is allowed to dig like this, it will be a big problem.

The archers were mobilized to the city wall, and the Houjin soldiers finally had a chance to counterattack, stretching their bows and arrows, and the bows were open like a full moon, and the Houjin people were still confident in their archery.

A large number of arrows flew towards the soldiers who were digging in the earth. A mournful horn sounded, and the security guard post sounded the alarm. The digging soldiers took their shields and put them on their heads, and lay down in the pit they had dug, their heads covered with iron helmets and iron armor, and their heads with shields, and their bows and arrows did them very little damage.

The post-gold archers only had this one chance. The cannon fire in the trenches outside the walls rang out as they fired their arrows, and a large number of shotguns flew past, killing and wounding most of the archers. The uninjured ones crawled down the city.

The security forces pulled light artillery into the trenches, which were closer and more lethal. The artillery was loaded while the infantry was digging, waiting for the Houjin soldiers to appear.

Leng Gri's heart was bleeding when he heard the sound of cannons. It is not easy to train a good archer. Only one round of shelling lost hundreds of archers, how to calculate this deal and how to pay.

When the golden archers withdrew, the security forces began to dig again, and soon a trench was dug within the range of the bows and arrows, and they dug deeper and deeper. In some places, trees were used to cover the roof, leaving only a small shooting hole, and the security forces watched the city inside, shooting at the slightest movement. Later, artillery was brought up, and the threat to the city was even greater.

By the time the security forces had done all this, it was already dark, and the security artillery's artillery had stopped firing. There was silence inside and outside the walls. Soldiers on both sides, tired from a hard day, stopped to rest.

Leng Geri didn't relax at all, he was thinking about how to deal with the attack of the security forces. Thinking that he was still at a loss in the middle of the night, he didn't have artillery and other heavy weapons in his hands, and he couldn't do anything about the enemy's slow advance.

If there was no defeat of the cavalry sent out during the day, he would not hesitate to send troops out of the city to fight. Now it seems that even if all the people are gathered, it will not be advantageous to fight the enemy outside the city. Leng Gerry was meditating there, when a shrill howl interrupted his train of thought, he knew that the security forces were firing rockets into the city again, and the night would not be peaceful.

After a while, Leng Geri received a report that the enemy was firing rockets from outside the city into the city, and the target was concentrated in the area where the Houjin army stored grain and grass, and the Houjin army was now organizing soldiers to extinguish the fire.

How did the battle go so hard, so far the enemy had not really sent a single soldier to attack the city wall, but Leng Geri, who was on the defending side, was under pressure.

Leng Geri, who was plagued by all kinds of troubles, felt that he had only fallen asleep in a daze, when a huge cannon sound rang out outside.

The light of day has dawned, and a new offensive of the security forces has begun.

The lookout post of the Houjin army looked nervously out of the city, not only to see clearly what new tricks the security army was playing today, but also to try not to be discovered by the security army below, otherwise they would be beaten into a sieve by the muskets and artillery below.

The security army really had a new way to play, and the trench of the security army facing the city gate advanced a lot, which they did last night by night. Several large reinforced iron barrels were placed in the trenches, the mouths of which were facing the arrow tower of the city gate.

A company commander of the security army gave the order, and the soldiers put the powder bag wrapped in cloth into the iron barrel, and with a few loud noises, the powder bag flew to the arrow tower on the city gate, and the bricks and tiles of the arrow tower flew in the explosion of the gunpowder bag, and the heavy artillery of the security army also shifted the target.

After several rounds of shelling, the arrow tower collapsed violently, and even the Houjin soldiers on the side of the city wall were either killed or injured by the bombing.

Leng Gerry hurriedly sent reinforcements, but in the constant sound of explosions, the soldiers could not climb that section of the city wall at all.

Under the cover of artillery fire, the security army pushed out the pontoon bridge from the trench and successfully crossed the moat, and a large number of security soldiers rushed to the city wall with bamboo baskets, which were filled with grenades and special wine jugs for the security army. Grenades rained down on the city, which immediately turned into a sea of fire, on which no one could gain a foothold.

The chain holding the gate drawbridge was blown off, connecting the gate to the road outside the moat. A large package of siege explosives pushed through the gates, and a huge explosion blew the gates to pieces.

Before the smoke and dust of the explosion dissipated, the Jin soldiers rushed over with the Saimen knife cart, trying to block the city gate. The grenade thrown in from the gate immediately knocked them to the ground along with the knife cart.

Hordes of security soldiers rushed into the city gates, threw grenades at the Houjin soldiers who were about to fight back, and then rushed forward with muskets loaded with bayonets. The Houjin soldiers immediately dispersed.

Leng Geri was dragged by the guards and fled at the moment when the city gate was breached. He also kept a clear head, understanding that the valuable cavalry would not gain more than it would lose to fight the enemy in street battles. Immediately ordered all the Houjin troops to evacuate the city of Guihua. It doesn't matter if the city is lost, as long as the team can save it, there is a chance to retake the city. The population of Houjin is too small to withstand a large number of human losses.

After the order, the other three gates of the Naturalization City were opened, and the Houjin soldiers fled desperately towards the prairie.

Leng Geri worked hard to gather the team, hoping to save more people.

But the rout was inevitable, and after Leng Geli fled back with a small number of cronies, Jin confessed to Huang Taiji. (To be continued.) )