The efficiency of the lieutenant colonel officers was extremely high, and not only the personnel of the army, but also all the administrative personnel who could be mobilized by the police and the city government joined the ranks of those who carried out the mission.

Without allowing Ye Ning and Lu Yuan to stand on the city wall for too long, a large number of administrators braved the flames of war, reopened the city gates on both sides, and then arranged a simple fire wall.

Since they are all activated by the spirit guide, although it cannot be controlled by personnel, the soul crystal can also be used as an energy source to maintain the use of the spirit guide, so the arrangement of the fire wall is extremely fast.

Lu Yuan and Ye Ning were just standing on one of the city walls, and they didn't know much about the layout of the other city wall.

But thinking that the efficiency of the two sides should be roughly comparable, so when the side he was on arranged the wall of fire to a distance of a thousand meters, Lu Yuan finally secretly breathed a sigh of relief.

Because those vicissitudes of defending under the city wall are on the verge of collapse!

In a short period of time, the overseer team composed of those attendants around him cut off the heads of nearly 100 soldiers who planned to escape, which suppressed the anxiety of other soldiers to a certain extent, but also made other soldiers resentful.

Until now, if you continue to use the Overseer to urge those soldiers who are obviously unable to continue to hold on, the most likely thing is to make the soldiers mutiny on the spot, and then the angry soldiers will rush up and tear the Overseer to pieces.

So at this time, the wall of fire began to see its scale, so Lu Yuan hurriedly issued an order for all soldiers to withdraw to the city immediately!

The issuance of this order, like the nectar of a long drought, suddenly lifted up all the soldiers who were still alive.

The body and spirit, which had already reached the exhaustion, suddenly rose up and repelled some of the beast tide for a short time, and all the soldiers hurriedly rushed back along the half-open city gate.

There were still a few people left outside the city, and the extension of the wall of fire was still arranged.

Such a task is tantamount to pinning your head to the waistband of your trousers, and it can be regarded as having the courage to see death as if you were at home, so that it can be carried out so desperately.

After the Canglan defenders retreated into the city, the beast tide once again began to storm the city walls.

It's just that this kind of impact is useless, with the war spirit guide on the city wall not taken into account, there is no need to worry about affecting the Canglan defenders, and after the real release of firepower, the retaliatory impact of the beast tide will soon be beaten back.

The wall of fire continued to stretch into the distance.

The beast tide looked extremely agitated, and stopped at a distance of about three or four meters from the wall of fire.

Because of this distance, it is enough to clearly perceive the heat from the fire wall!

Lu Yuan stood on the city wall, staring nervously at the movements of the beast tide.

Seeing that the beast tide did not choose to rush through the wall of fire, but stopped one after another, Lu Yuan's heart slowly let go.

Quite excitedly, he shook his fist hard and hammered down the city wall, and his tone was unusually excited: "It's really useful! Obviously, this kind of fire can't cause any damage to the immortals in the beast tide, but the beast tide still stops! Ye Ning! This idea of yours is really useful! After this beast tide is over, I will definitely ask you for credit!"

Ye Ning also breathed a sigh of relief, after all, when he came up with an idea, he was not very sure.

It's just that in the previous life, all beasts had the habit of being afraid of fire, and the immortals in this life, although they were far more powerful than beasts, were just more powerful beasts in Ye Ning's eyes, and there was not much difference in nature.

In this case, of course, the fairy should also be afraid of fire.

Thankfully, his guess was correct.

Although we know that low-level fairies are indeed afraid of fire, but considering that the high-level fairies themselves are extremely powerful, they can completely withstand the blazing of ordinary flames, so in the minds of the vast majority of human beings, flames will not become a factor that fairies are afraid of.

"I didn't do anything, I just came up with an idea. What really needs to be done is the soldiers who fought desperately, and after this battle, the Canglan defenders ...... I don't know how many will be alive. ”

Ye Ning said in a somewhat low tone.

"They are soldiers of the Empire, and it is their vocation to die for the Empire. Of course, their rewards will never be less, and all the dead soldiers, the empire will have a generous pension, at least so that their families can spend the rest of their lives with peace of mind. All the disabled soldiers were also provided for by the Empire. You should know that the Imperial Association of Disabled Soldiers, although only a semi-official civil organization, is extremely powerful in terms of influence and actual power. ”

Lu Yuan said it in detail, and it sounded like he was explaining to Ye Ning, but in fact, he always seemed to have a taste of comforting himself.

Ye Ning could roughly understand Lu Yuan's contradictory psychology, and decisively changed the topic: "We still have to continue to think of a way, the wall of fire can block the beast tide for a certain period of time, but it can't be blocked like this forever." Fairies don't have much intelligence, and they tend to act on instinct, which is why they are afraid of walls of fire. However, it is also because of instinct that once the waiting time is too long, the anxiety spreads, which is bound to make it difficult for the beast tide to continue to maintain this pause. ”

"You know what I mean, there is a limit to the fear of the beast tide of the wall of fire. Once their patience exceeds this limit, and fairies begin to try to cross the wall of fire, the wall of fire will simply become ineffective. It's not really a wall, it's just a fig leaf. ”

Lu Yuan's expression that had just relaxed a little became solemn again, and after nodding slowly, he asked, "Do you have any good suggestions?"

"There is nothing good to suggest, the war is to put it bluntly, it is still a battle of strength. Any plan and strategy must be built on the basis of strength. The strength of the Canglan defenders has been completely overdrawn, and the only thing we can do now is to arrange people to urge the reinforcements on the road and let them continue to speed up!"

"Even if their current marching speed is the fastest, even if they continue to speed up the march, it will make them more tired and their combat strength will be damaged as a result, they must do so! Because the appearance of reinforcements can bring hope to Canglan City, and only hope can make the Canglan defenders, who have basically been disabled, regain new strength. ”

Ye Ning said in a deep voice.

Lu Yuan nodded silently, agreeing with Ye Ning's opinion, and glanced at the city wall.

It was discovered that the beast tide may have been due to the fact that the length of the wall of flames was still extending, so no attempt was made to circumvent the wall of flames.

But although it stayed in place, the restless aura in the beast tide was getting stronger and stronger.

No longer hesitating, Lu Yuan directly summoned the henchman who had accompanied him into the wilderness before, and after a few simple explanations, the henchman immediately turned around and left as fast as he could.

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