If you look at it from the perspective of bloodline, Xu Changqing should undoubtedly help Wu Sangui at this time, after all, there is Wu Sanmei's relationship here.

If Xu Changqing made a move at this time, even if he could not defeat the Liumin army, it would not be a big problem to resolve the siege of Shanhaiguan.

But that doesn't work out that way.

Blood is not equal to justice, let alone truth!

Not to mention that the relationship between Xu Changqing and the Wu family is not a real blood relationship at all, Wu Sanmei and Xu Changqing's son is about the same.

To this extent, in fact, both Guan Ning and the Exile Army are deformed products in a specific environment, and no matter which side of the people wins, it will not be of any substantial help to the country and the nation, and they are just fat and ugly maggots.

Xu Changqing was quickly relieved.

As long as Shanhaiguan is still in the hands of the Han people, whether it is the Wu family or Li Zicheng, as long as they can defend it and are willing to fight with the Tartars, then who will he Xu Changqing support!

Just as Xu Changqing was thinking, the battle situation in Shanhaiguan City was becoming more and more intense.

In the fluttering firelight, the elite of the wandering army became more and more courageous, and they were about to gain a foothold in the main city, although the Guanning army was desperately resisting, but at this time, both morale and ability, were a little unable to keep up.

"Uncle, what should I do? What can I do now? The thief can't hold it down, wow......"

At this time, there were gaps in Ma Ke's position one after another, he was not stupid, his ability to escape was first-class, and he directly asked the family to stand up over there, and hurriedly came to find Wu Sangui to meet.

Wu Sangui really wanted to kick Ma Ke into the city at this time.

What a few things, not enough success, more than failure!

But at this time, Wu Sangui could only suppress the anger in his heart and soothe: "Don't panic, haven't they killed yet?" We have so many elite riders, are we still afraid of these mud legs? Master Ma, you go and rest first, everything is with me. ”

Seeing Wu Sangui's calm appearance, Ma Ke also had a little bottom in his heart, no longer harassing Wu Sangui, and hurriedly went to rest first, mainly to prepare for the back road of escape.

Sending Ma Ke away, Wu Sangui was already gloomy and not humanoid at this time!

You have to make a choice!

If you don't make a choice, Shanhaiguan will really lose it......

After a moment, Wu Sangui gritted his teeth fiercely and muttered in a low voice: "The surname is Li, you fucking want to kill me, how can it be so easy?!" Let's let you see the real defense power of Shanhaiguan! ”

"Someone!"

"Yes!"

Hurriedly a pro-soldier knelt down respectfully in front of Wu Sangui.

Wu Sangui's face was already hideous, and he said coldly word by word: "Pass my military order, drive these dogs back, and put on the oil!" ”

The pupils of the pro-soldier dilated suddenly, and it took a moment to come back to his senses, and he hurriedly said yes respectfully.

Soon, on the steps of the city wall, countless people rushed up with wooden barrels one after another, and even down the drainage channel, pouring out the contents of the barrels, all exuding some indescribable smell of oil.

However, it is called 'fire oil', but it is not the fire oil refined from model military oil, but the oil is mixed with various animal oils.

This is the old technology of Jingying.

As barrels of fire oil were poured out, they soon converged into a river, slowly flowing in the direction of various Luo cities.

This is the ingenuity and power of Shanhaiguan's design!

The main city is high, and the city of Luo is low.

This design is difficult to see with the naked eye and is mainly for the need for drainage.

But at this time, Wu Sangui accurately grasped this point.

"Boom!"

In the chaos, countless fire oils poured into various Luo cities, and someone accidentally dropped the torch into the drainage canal, and suddenly there was an explosion-like sound, and the raging fire suddenly broke out.

"Not good!"

"Wu thief wants to cheat!"

"Brothers, rush over and kill them!"

"Kill the thief!"

"Kill ......"

The Wandering People's Army discovered the abnormality at the first time, and many officers also made the right decision at the first time, wanting to kill the Guanning Army and pull out the space.

However, at this time, the Guan Ning army had no way to retreat at all, how could it be easy to retreat? One by one, gritting their teeth and desperately trying their best, they stuck in front, just not letting the homeless army come over.

If Xu Changqing is here, he will be able to find the crux of the two sides at the first time.

At this time, whether it was the Liumin Army or the Guanning Army, when they really fought together and fought hand-to-hand at close range, there were still most short weapons, and too few long soldiers.

However, short weapons such as waist knives are indeed convenient and dexterous, but they are only small paths, and they are far from impactful.

Even, Guan Erye's long knives, including the Qing army's sledgehammers, hook sickles, maces, etc., are all trails at this time.

Even though these weapons have impact power, they are still too small, and they are more capable of controlling small fields.

Only the spear, especially the formation and size of the pikemen combat group, is the royal road in this environment!

In the shortest possible time, rush out of space, pull out space, and squeeze your opponent's space!

Only by using the indomitable momentum to drive the opponent out of the area that must be controlled, can we achieve the maximum effectiveness in the shortest possible time, so as to achieve the final victory in the battle!

It's a pity that whether it is Li Zicheng or Wu Sangui, in this regard, they are a little tender after all.

"Boom!"

"Boom ......"

In the melee, the fire in the drainage canal was constantly ignited, and the archers of the Guanning army also followed, one rocket after another, constantly shooting at the crowds of displaced people in various Luo cities, and soon the fire rushed into the sky, and there were exclamations and shouts everywhere.

Even though the Wandering Army was sharp at this time, how could it be tough with this terrifying fire? As a last resort, a large area of space that was desperately rushed out could only be returned to Guan Ningjun.

In the final analysis, in terms of the overall quality of the battlefield, it is the veteran army of the Wandering People's Army, and it is too far from the Guanning Army.

Among the cavalry of the Guanning Army, almost everyone is a good horse archer, but how many people can there be in the Liumin Army?

"Dog, what a vicious mind!"

In the middle of the Wandering People's Army, Liu Zongmin immediately noticed that something was wrong and took a spit.

The generals who had been immersed in a state of excitement also gradually calmed down, and they all looked at Liu Zongmin anxiously, this state, they really didn't expect it.

Li Zicheng was also a little nervous.

This is really a non-war crime.

Who would have thought that Wu Sangui would be so ruthless in the end, such a method of playing with fire, and there would definitely be many casualties in Guan Ning's army.

In a moment, Liu Zongmin already saw sweat on his forehead, and hurriedly gave the first order, hurry up and remove the catapult, especially the flowering bomb.

If you don't handle the flowering bomb well, you will really shoot yourself in the foot.

But the fire was so fierce that they couldn't rush forward no matter how much they rushed forward, and Liu Zongmin already had a faint intention to retreat in his heart.

After all, I don't know how much fire oil will be consumed by a fire of this scale, and even Shanhaiguan will definitely not be able to store so much.

As long as it is consumed a little more, and if he attacks again tomorrow, Wu Sangui will definitely not be able to resist.

But for some reason, Liu Zongmin always had a bad premonition in his heart, as if something was wrong, but he couldn't remember it for a while.

'What should I choose?' ’

Liu Zongmin also has no score in his heart.

However, he was suddenly clever!

If Xu Changqing stood in his position, how would Xu Changqing choose?

Liu Zongmin couldn't help but squint his eyes vigorously, and his mind spun rapidly.

Whether he asked people to read him the art of war, or listen to people talk about the art of war, in the final analysis, his ability at this time is more from the perception of actual combat, relying on his talent to understand it.

And among these insights, there is nothing more profound than the memory that Xu Changqing left him.

It is precisely because of Xu Changqing's existence that he can feel that he is much stronger than before.

Thinking about it, Liu Zongmin's eyes became more and more determined.

This state, whether it is rashly attacking or giving up, is unwise, and the best way is to stretch it first!

After all, most of Luo Cheng was on fire, but there were still a few that weren't!

Moreover, the combustion power of oil is destined to be limited, and if you hold on to it, maybe there will be changes?

After retiring the catapult, Liu Zongmin did not issue a new order to the elite of the Liumin Army at the head of the city, but asked the catapult troops to continue to move forward, and continued to throw flowering bombs from the gap between Luo City and the fire on the city head.

"Bang!"

"Bang Bang ......"

For a while, the fire mixed with the power of the bursting of the flowering bomb, almost like the silver flowers of the fire tree, continued to shine on the head of Shanhaiguan City, illuminating the night sky transparently.

But neither side retreats, and they are still stumbling!

"Hmm...... Xu Lang, this, what does this taste like? No, it won't be a corpse, woo wow......"

On the hill by the sea, Zhu Yujiao suddenly covered her mouth and nose hard, and her beautiful eyes showed an extremely frightened light, and she almost wanted to gause.

Xu Changqing naturally smelled something wrong in the air, and Zhu Yujiao guessed correctly, it was the smell of many corpses being burned.

However, this is obviously no big problem for Xu Changqing, as if he had never heard of it, he took Zhu Yujiao in his arms forcefully: "Don't worry, this thing is not poisonous." ”

“……”

Zhu Yujiao is almost vomiting blood, can she not know that this thing is not poisonous? She just wanted Xu Changqing to comfort her and protect her.

But at this time, Xu Changqing floated out of this sentence, so he ignored her and looked at the battlefield more solemnly.

Zhu Yujiao just wanted to pinch Xu Changqing hard, but suddenly found that the solemnity in Xu Changqing's eyes was even stronger than before, and she didn't know what she was thinking.

After hesitating for a moment, she finally didn't start, for fear of interrupting Xu Changqing's thoughts, but leaned closer to Xu Changqing.

Smelling the good fragrance on Zhu Yujiao's body, Xu Changqing couldn't help frowning at this time.

Liu Zongmin's idea is good, but the momentum of the Wandering Army has been suppressed, even Wu Sangui is not having a good time, but tonight Liu Zongmin wants to break through the city, and the difficulty is already quite great.

I have to say that Wu Sangui is ruthless and yin enough, even Xu Changqing didn't expect him to have this hand!

If things still follow the track of history, the Wandering People's Army really can't blame others, it's just that they themselves are still not elite enough!

When the opportunity appeared, he didn't grasp this opportunity 'steadily, accurately and ruthlessly', and it seemed that he still occupied the general trend, but Wu Sangui waved his hand and cut off most of the general trend.

This also made Xu Changqing think more deeply about war.

This kind of thing, that is, if you don't shoot, you must use the most violent way to defeat the enemy in the maximum and shortest time, don't fix those useless!

Otherwise, no one knows what will happen in the next moment.

In a short time, a quarter of an hour had passed.

At this time, although the fires on the various Luo cities began to subside, they had spread to the vast majority of many Luo cities, squeezing the space of the displaced army to a minimal, and the damage was extremely heavy.

Liu Zongmin couldn't hold it anymore, and said to Li Zicheng: "Emperor, today's sons and daughters are working hard, and the cost is quite large, not weak, let's take a step back first, and come back tomorrow, right?" ”

Li Zicheng actually wanted to stop a long time ago, but Liu Zongmin didn't speak, and he couldn't break Liu Zongmin's face, seeing that Liu Zongmin took the initiative to propose at this time, he borrowed the donkey from the slope and said: "In this case, then let's withdraw first!" Let's fight again tomorrow, and we will conquer the city! ”

"Yes!"

Soon, the piercing golden sound sounded, and both the Wandering Army and the Guanning Army retreated one after another as if they had been granted amnesty.