From dawn until dusk, the long swan sound ceased, and the harsh golden sound was heard.

Ahead, the auxiliary soldiers and civilians who had been tired all day had finally received an amnesty order, and suddenly retreated like a tide.

Zhang Qingchuan and Zhou Kunpeng not only felt like their legs were filled with lead at this time, they were not their own, the whole person had completely become a machine, and they could only follow the flow of people mechanically, even if they were already covered with dirt and wounds, they didn't care at all.

As long as they can go back alive, it will be the creation given to them by God.

"Haha, official dog, you will come up if there is a kind! Rubbish, a bunch of rubbish, hahahaha......"

"Come on, waste, taste grandpa's fairy water......"

"The dog thing will come again tomorrow, and the master will serve you well, whoever doesn't come is the grandson, hahaha......"

As the auxiliary soldiers of the model army and the people retreated, there was a cheer in the battle array of the exiled army, and all kinds of foul language spread far away with the wind.

There are even extreme blatant standing on earthen walls and peeing in the direction of the Model Army.

In front of the fort, it was not until many sons and daughters had retreated to safety that it was completely dark, and Xu Changqing and the others began to descend the mountain and return to the camp.

But after returning to the camp, he didn't have time to rest, let alone eat, so Xu Changqing continued to hold a military meeting, and everyone discussed countermeasures together.

At this time, whether it is Wang Chengen, Zhang Ruoqi, or Mao Bijiang and others, they all understand the strategic significance of Tongguan, and they also understand how difficult Tongguan is to be conquered.

Especially Xu Changqing's high-intensity work rhythm, it also made them scold the eighteenth generation of Sun Chuanting's ancestors who committed suicide and martyrdom dozens of times.

You said that you would die if you died, but why didn't you stabilize the Tongguan Fortress, it was easy to be deceived by thieves and take down this fortified city?

Now, the Model Army has paid hundreds of casualties, but it is still as difficult as the sky!

Wang Chengen's faces were all under Xu Changqing's observation, but Xu Changqing would definitely not show it, and the military discussion was held for more than an hour, until everyone was hungry, and their hungry chests were close to their backs, and they were about to faint, Xu Changqing announced the end of the meeting and let everyone go to eat.

"Waste, waste! actually let Lao Tzu wipe his buttocks, and the court still rewarded the future so much, it is clear that he is a national thief! ”

When Zhang Ruoqi returned to his big tent, he couldn't stop scolding, and he was tired of the fragrant food and didn't want to eat it.

He was already racking his brains at this time, but he still didn't think of a way to conquer Tongguan, so he didn't bother to think about it anymore, so he lay on the bed and fell asleep after a while.

Wang Chengen is also similar to Zhang Ruoqi.

After all, he is old, and his energy is far from when he was young, so he took a sip and lamented a few times of Emperor Chongzhen's quick temper, and then fell asleep.

But when he returned to the tent, he trembled uncontrollably.

Although he is pretending to be the same as a transparent person today, he has been observing Xu Changqing!

I don't know if I don't observe, but when I observe, he suddenly ...... What did you find......

Rao is Xu Changqing is hidden very deeply, but he is naturally keen in terms of observing words and feelings, and he still caught it!

Xu Changqing seems to ...... is sure to take Tongguan, what he did at this time is just for show......

As soon as I thought of this, I felt that I was covered in a cold sweat, and my hands and feet trembled uncontrollably.

Enemies of such people......

It's unimaginable......

……

"Dashuai, the production of paragliding has made great progress, but if you want to use paragliding to throw flower bombs, I'm afraid, it's not realistic. The main reason is that you can't light the fire, the wind in the sky is too strong, whether it's flint or fire folds, it's too difficult to ignite......"

In Xu Changqing's big tent, Zhang Dagong was carefully reporting to Xu Changqing on the progress of paragliding in these days.

In fact, as early as after seeing the topography of Tongguan, Xu Changqing understood that it was impossible to take Tongguan by land, so he was studying paragliding more than half a month ago.

The principle of paragliding is actually very simple, just like a bat, you can slide down from a high place.

However, it is easy to make paragliders, but it takes a lot of effort to train the people who control paragliders, and these days, Zhang Dagong and they have been practicing secretly in a canyon deep in the Qinling Mountains dozens of miles away.

After listening to Zhang Dagong's report, Xu Changqing nodded slowly.

Ignition is a real problem.

After all, there are no windproof lighters at this time.

At this time, although Zhang Dagong had trained more than 200 paragliders, if he could not form the original version of the 'bomber' effect, it would still be useless.

After all, Tongguan Road is too long, even if you remove what Xu Changqing controls at this time, there are still more than ten miles in the range.

If absolute suppression cannot be formed, let alone attacking Tongguan, it will be impossible to pass the Tongguan Road.

These more than 200 paragliders are not even enough to plug their teeth in the face of the absolute superiority of the Displaced People's Army......

However, thinking about it, a clever moment suddenly flashed in Xu Changqing's mind, why did he have to choose a thankless paraglider?

The most effective and stable weapon that really throws flowering bombs is clearly an airship!

As soon as he thought of the background music of the airship in the Red Alert in the later generations, Xu Changqing couldn't stop being excited!

At this time, even if you can't make an airship, you can make a simplified version of a hot air balloon, but there is no problem!

Thinking about it, Xu Changqing said his thoughts to Zhang Dagong.

"Uh, this ......"

Although Zhang Dagong is extremely good at studying these strange things. lewd skills, but he was still a little shocked by Xu Changqing.

He never imagined that in addition to the paraglider, which was already terrifying, his handsome man could actually come up with something even more terrifying and incredible......

"Big Bow, why the hell are you looking at Lao Tzu like this? The key principle here is the transformation of air, and that's it, I'll draw a picture for you......"

Seeing Zhang Dagong's bewildered appearance, Xu Changqing kicked his ass angrily, quickly took a pen and paper, and drew carefully.

Zhang Dagong came back to his senses at this time, and soon gradually understood, and nodded again and again.

……

After sending Zhang Dagong away, it was already past time, Xu Changqing felt tired at this time, and couldn't help shaking his head and laughing.

If a hot air balloon is developed, it must be a super killer, and it will be at least 100 years ahead of the world!

However, as for whether to take Tongguan or not, Xu Changqing began to struggle.

The benefits of taking Tongguan are explained to all aspects, and it will definitely allow the main force of the Liumin Army in Shanxi to come back, and the decadence of the Ming Dynasty will be broken at this time.

But there are also many disadvantages.

The chokepoint-like fortress Tongguan was broken, how could the exiled army still be able to sit still? I will definitely fight my life to grab it!

Moreover, the terrain of the western front of Tongguan is much more soothing than that of the eastern front, which is very likely to detonate the decisive battle between the model army and the exile army in advance!

Especially if Xu Changqing stifles the momentum of the Wandering Army, it will be difficult to deal with those rat-like miscellaneous items in the capital.

After thinking about it for a long time, Xu Changqing still decided to take Tongguan!

The rats are indeed hateful, but Shanxi, including the surrounding people, are innocent, and Xu Changqing can't ignore the national righteousness for his own selfish interests!

If the exile army can be exterminated, the imperial court will have more spare strength to deal with the scourge of the Manchu Qing.

It's like Lincoln's famous saying, as long as the big frame can be maintained first, it is always easy to repair it later, at least it is complete.

……

In a flash, five or six days flew by.

These days, on the bright side, Xu Changqing has been constantly pushing the offensive to compete for the space on Tongguan Road East Road.

Secretly, it has spent a lot of effort to continue to increase the research on hot air balloons.

In fact, Huaguo has long had the application of hot air balloons, which can be traced back to the sky lantern and Kong Ming lantern not knowing how many years ago, Zhuge Liang has always been known as the inventor, and in the Sui and Tang dynasties, Kong Ming lantern has been popular, and it is the love of countless young men and women.

It's just that no one thought that this principle could also send people to the sky.

In Europe and the United States in later generations, hot air balloon is an extremely popular and trendy sport, and the International Aviation Association even rated hot air balloon as the safest aircraft on earth.

And this is indeed the case, after all, the hot air balloon has a simple principle, a simple structure, and a lower failure rate than an airplane.

It's a pity that Xu Changqing has a theory, but no practice, and he has never played with hot air balloons before, from the selection of fabrics for making hot air balloons, the process of production, to fuel, temperature and many other aspects, it takes a lot of experiments and time.

Fortunately, at this time, the overall situation can barely be maintained, and Wang Chengen and Zhang Ruoqi also began to rack their brains to ease relations with the imperial court on behalf of Xu Changqing.

However, early in the morning of the fourth day of the ninth lunar month, Xu Changqing was about to take everyone to continue to watch today's bulldozing offensive, when several horses suddenly galloped from the north, bringing a terrifying news that stunned everyone:

"Xiongcheng Taiyuan, lost!"

"At this time, the Liumin Army has divided its troops into two routes, one way continues to go north, approaching Datong, and the other way is directly approaching Shunde, intending to rush to Baoding and Jingshi."

The point is that the momentum of the Wandering People's Army is completely up, and the responders are simply innumerable, and there is even a large number of landlords and gentry.

The whole environment is no longer optimistic about the imperial court.

"This, this, this...... How can this be, how can this be......"

Wang Chengen collapsed directly on the ground, his hands and feet were cold, and the muscles on his face began to twitch unconsciously.

Zhang Ruoqi's face was also pale, and he couldn't help himself.

Mao Bijiang swallowed his saliva with great difficulty, wanting to say something, but he just didn't know what to say.

And Xu Changqing's side, Li Yan, Zhao Zengjin, Ergou, Red Lady and countless other people were also dumbfounded, and they didn't know what to do at all.

Even Xu Changqing only felt cold all over his body for a while, and he wanted to exert his strength, but he didn't know where to start......

Although he had long expected that the environment in Shanxi was not optimistic, Xu Changqing did not expect that he had completely attracted Li Zicheng, Liu Zongmin and other cores of the Liumin Army to the hinterland of Tongguan......

They really touched it......

Taiyuan has been lost, and even the exile army has continued to advance eastward and entered the territory of Shunde, and the original key position of Tongguan has changed in an instant.

Now it's no longer a matter of exterminating the exiled army, but ...... It is necessary to be prepared, and the Wandering Army conquers the Beijing Division......

Today's offensive will definitely not be carried out, Xu Changqing still has time to announce his return to defense, and earth-shattering cheers have already been heard in the battle formation of the Wandering People's Army.

As if they had just received the news, I am afraid they didn't expect that Taiyuan Xiongcheng would be broken by them so easily.

At this time, how did Taiyuan lose it, who has to take responsibility, who will carry this pot, Xu Changqing is no longer interested.

At present, the most important thing is to judge the situation, make a correct judgment as soon as possible, and guard against the general trend that is already uncontrollable and no one knows how it will develop.

Inside the big tent.

The atmosphere was like ice.

Rao is everyone present is a generation of wind and waves, but in the face of this kind of chaos, in the face of this really indescribable horror, no one has the bottom in their hearts.

Fortunately, Xu Changqing had already calmed down, looked at Li Yan and said, "Strategist, what do you think?" ”

Li Yan couldn't help but sigh: "Lord, creation makes people." In such a state, I am afraid that the world will be chaotic, and now, it is meaningless to conquer Tongguan or not, we are afraid that we must first move closer to the Beijing Division! Otherwise, if it is attacked by thieves under the capital city......"

Li Yan didn't say any more, but who in the crowd didn't understand what he meant?

Zhang Ruoqi couldn't help but shake his head again and again and smiled bitterly.

Wretched?

Amusing?

Hateful?

Who would have thought that a group of bigwigs in Beijing were still pestering over whether Xu Changqing was working hard, and the thieves had seized this opportunity, and the real momentum was up!

Zhang Ruoqi understands very well that thieves are not Tartars, these are all Han people!

Now, I'm afraid that there are many people who no longer regard thieves as thieves, but as new owners.

At this time, Wang Chengen couldn't bear it anymore, his eyes were closed, his neck was crooked, and he passed out directly.

"Prince!"

"Prince, are you alright?"

In the quiet tent, there was chaos in an instant.