In addition to having the strongest city wall of this era, there is also a moat outside the city wall that is more than several zhang deep and wide.

That's not all, on the inside of the moat, there is also a sheep and horse wall, five feet high and six feet thick, and there is also a female wall on it, which is garrisoned by officers and soldiers.

In addition to the moat, there are also three layers of defense, namely the horse rejection, the horse trap, the deer, and even in the grass on the ground outside the deer, there are also a lot of thistles terrestris.

It was a very difficult task to open up this passage, and this task fell on the engineering troops of the Yu Jiajun.

Armed with all sorts of oddly shaped tools that were not weapons, the sappers, under the cover of the infantry, rushed into the battlefield, gathered into several points, and began to break through the city walls.

When they entered the battlefield, the defenders watching from the city discovered the movement of Yu's army, and although Gao Qiqian did not dare to enter the city, he urgently ordered the defenders to fire artillery again to block Yu's army from attacking the city.

So the artillery on the city wall was dumb for a while, and now it was resurrected, and some of the artillery that had not been destroyed in steel, under the supervision of Gao Qiqian and the general, started again.

Although the gunners of the officers and soldiers had very poor artillery skills, it was still possible to bombard such a dense attacking force, and after several artillery shots, the attacking troops immediately suffered casualties, and some shells fell into the array of the attacking troops, causing casualties among more than a dozen infantry and engineers in an instant.

The artillerymen were anxious at first glance, and immediately concentrated their firepower and began to bombard the places where the artillery was fired again, and almost after a while, the few cannons that had just been resurrected were dumbfounded by the cannons of the Yu family's army.

At this time, the snipers also began to enter the battlefield, they quickly found the support on the battlefield, loaded the high-precision wolf tooth rifle on hand, set it on the support, and began to stare at the eagle-like eyes, locked on the city wall, as long as they found that there were officers and soldiers on the city wall or officers and soldiers tried to push the artillery against the battlement, trying to fire artillery bombardment, they immediately began sniper operations.

Many officers and soldiers were forced to show their heads on the city wall in desperation, trying to release arrows or guns to block the attack of Yu's army, but many people were shot head-on as soon as they showed up, either their faces were smashed on the spot, or they were shot in the chest and abdomen, and they fell on the city wall with blood spraying on their backs.

On the sheep and horse wall in the moat, there were also officers and soldiers stationed at this time, who also tried to shoot the attacking Yu family army generals with arrows or guns, but their blocking action, just at the beginning, was fiercely returned by the Yu family army, and a group of Yu family army musketeers, while advancing in line like a wall, stared at the sheep and horse wall on the other side of the moat, and when they saw the officers and soldiers on the sheep and horse wall began to move, they immediately stopped advancing.

In the roar of the officers, the musketeers lined up their guns, and began to shoot at the defenders on the sheep and horse wall, although the officers and soldiers had bows and arrows and bird guns in their hands, but the range was limited to dozens of steps, and they could only get to the other side of the moat not far away, but the Yu family army was mostly equipped with rifled Migne rifles, and the range of using Migne bullets was 300 paces, and it was generally possible to accurately aim and shoot within 200 steps.

As a result, under the gunfire of the platoon of the family army, the officers and soldiers who had just emerged were overturned a lot, and they were instantly pressed down, so frightened that the officers and soldiers shouted and screamed, and some of them even urinated incontinence on the spot and urinated on the crotch of their pants.

So it seems that the defenders of the Beijing Division have a lot of troops, and there are a lot of firearms and equipment, but in fact, on the battlefield, they are fully suppressed by the firepower of the Yujia army, plus these defenders in the area of Chaoyangmen, they are the group of defeated soldiers led by Gao Qiqian before, in the battle of Julu, they were defeated by the Jiannu army, these soldiers and horses were lax, and after the rout, many officers and soldiers simply started to rob and trade, they are not much stronger than the Jiannu army, and they can even be said to be more brutal.

In order to cover up their incompetence and make some military exploits to cover up their defeats, they often killed the good and risked their merits, beheaded the people, shaved off their hair, and tried to disguise themselves as the heads of Jiannu to ask for credit.

Later, although they were recruited by Gao Qiqian, Gao Qiqian did not restrain them too much, so after these defeated soldiers were brought back to Beijing, they entered Beijing and stationed in the area of the station, and did a lot of things that harmed the people, and Gao Qiqian ignored them.

Now counting on these routs to serve the imperial court is a joke at all, so don't look at their numbers, but there are very few people who really dare to fight, even if there are some guys who want to lick their stinky feet, trying to show their bravery at this time, but in the shelling just now, they have been killed a lot, and some people just jumped out to try to resist, but they were immediately hunted by snipers.

The fighting spirit of the official army and the defenders was extremely low at this time, and few people dared to show their heads, so don't expect them to be able to stop the Yu family army from approaching the moat.

In fact, the siege equipment of the Yu family army was not complete at this time, like heavy siege equipment, they could not build it in advance, from Tongzhou to the side of the Beijing division, many times the siege army was outside the destination after the soldiers arrived outside the city, and then began to build siege equipment on the spot.

But after the Yu family army arrived here, they didn't make too many preparations, mainly because time did not allow it, so they didn't have many siege equipment on hand, only some improvised siege equipment, and they could only use some local methods to solve the problem.

Under the cover of artillery and infantry, the engineer troops used all kinds of strange weapons, and quickly approached the moat, and soon they encountered the thistle terrestris area, so they immediately used nail rakes, or magnets prepared in advance, to quickly clean up the iron thistles on the ground, sweep them away, and clear the passage of advance.

Moreover, the sappers prepared a lot of small red flags and planted them on both sides of the cleared passage, so that the follow-up infantry could accurately see the location of the passage, so as not to step into the uncleared area and hurt the soles of their feet.

In addition, in order to facilitate the layout and retraction, the thistle terrestris is often threaded with wire or rope, thrown on the ground in strings, and often pulled out with a nail rake, which is also more convenient.

As for the magnet, it was purchased by Yu Jiajun in advance, and there were not many of them, but they were strung up and dragged over, and they could suck up the hidden thistles on the ground at once, but because the magnetism of the magnet was limited, this method was not easy to use.

The most difficult thing to deal with is some non-iron tribulus terrestris or bamboo sticks on the ground, fortunately, there are relatively few bamboos in the north, and the Jingshi side has not prepared too many thistles or bamboo sticks, so although it caused some trouble to the Yu family's army, but soon the sappers still cleared a fairly wide passage.

Then there are the traps and deer, which were originally meant to block the advance of the besieging army, which could effectively stop the enemy infantry from attacking, but only if there were enough defenders, archery or guns, to shoot the enemy troops who were blocked in front of the deer.

However, at this time, the official army and defenders were completely suppressed by the Yu family army, and they couldn't raise their heads at all, so the sappers basically didn't have much effort to clear these deer barns.

They prepared a lot of sharp axes, rushed to the front of the deer, and with a round slash, they cut the deer, knocked it down piece by piece, and dragged it aside to open the passage.

As for the horse traps, they were mainly used against cavalry and infantry, and the sappers used their spears to poke at the ground in front of them as they walked, and when they encountered a camouflaged horse trap, they would immediately poke out the location of the horse trap and destroy it immediately.

Near the moat, there was also a rejection of horses, but unfortunately they did not play their role, and under the destruction of the sappers, they were quickly torn apart.

The officers and soldiers could only watch as these short and sturdy soldiers of the Yu family destroyed these defensive facilities outside the city one by one, but they couldn't do anything.

Occasionally, a gunner was forced to fire a cannon, but it was immediately knocked out by the artillery of the Yu family's army, and it was never possible to form a dense firepower to block the attack of the Yu family's army.

In less than an hour, the engineering troops successfully broke through the obstacles outside the moat and finally reached the moat.

The moat is now due to the lack of rain in the north, the amount of water is insufficient, and in the moat more than a zhang deep, there is only more than two feet of water left, and the deepest depth is only about one meter.

Of course, this still hindered the advance of the Yu army, after the sappers arrived at the river, they could only use the old method, at this time in the absence of modern construction machinery, there is no way to fill sandbags more affordable.

So at this time, several new barracks that had already been prepared in the back, that is, the new barracks formed by the captive soldiers on the Tongzhou side, have finally come in handy.

In order to show his justice, Yu Xiaotian did not coerce the people along the way to use it as cannon fodder for the Yu family army this time, but he brought a few new barracks over.

These recruits are all made up of captives, and there are a small number of newly recruited civilians, who will definitely not be able to fight in battle, after all, they have not yet received preliminary training, but it is not a problem to work as a cadre.

So these recruits of the Yu family army played a role at this time, everyone prepared a big cloth bag in advance, after the attack began, they began to fill the cloth bag with soil, at this time, with an order, these recruits carried the soil bag, and began to rush towards the moat.

On both sides, the infantry of the Yu family army provided cover for them, and constantly shot and killed the officers and soldiers who were raising their heads on the opposite sheep and horse wall and the city wall, so that their recruits did not encounter strong resistance.

The recruits panted like oxen, panting heavily, carrying heavy bags of dirt, running to the side of the moat, and according to the instructions of the sappers who were blocked here, dumping the bags on their shoulders into the moat.

(Thank you for the tips from book friends 3135473 and the desert laughing spring breeze brothers!) ）