Chapter 489: Danger Level Four Battle Although the demon attack of danger level three and the demon attack of danger level four are only one level apart, their concepts are completely different, a demon army of level 100,000 can easily destroy them with only one or two elite warbands, but when it reaches the level of millions, no commander dares to fight with a small number of warbands.
Even the most elite warbands are unlikely to survive a million-dollar war, and the endless sea-like enemies are enough to exhaust the toughest warriors and die a humiliating death.
It was precisely because of this that after hearing the alarm of danger level 4 sounded, the middle-aged commander in the headquarters immediately issued an order to all the troops who were carrying out routine clearance work in the imperial capital.
"According to the emergency regulations of the defense line, now I order in the name of the second-level commander of the Imperial defense line, and the imperial defense line will be activated immediately!
In addition, all the clearance troops, including the war regiments, please follow the instructions to board the personnel carrier and return to the defense line as soon as you hear my order, remember!
This is an order, if that orc dares to delay for a second, there will be no food allowance for the next month!!
The Commander, who looked a bit like a scholar, shouted his last words, and a loud voice echoed throughout the command hall, but except for a few outsiders from the Star of Light, the other officers in the hall were still busy in front of their own command platform as if they hadn't heard the Commander's unqualified threat.
At this moment, the commander's orders were broadcast on all channels on full frequency, even if it was the rising orcs who were killed on the battlefield, the commander's roar directly forcibly turned on their already closed command system, and the explosion in the ears of the orcs almost shook them to the point of almost jumping.
"Retreat!
That bastard commander is going to detain our canned meat again!
"The Commander's threats were still very effective, and even the most slaughtered orcs couldn't help but shudder at the thought of eating a standard meal with plenty of vegetables for a whole month.
The screaming orcs then gave up on the demons they had killed, and after reopening the chain of command, according to the route given by their tactical commander, Fei also seemed to have to flee towards the defense line, and at this moment, outside the Imperial defense line, they could clearly see that the Imperial defense line, which had only been lit at night, was shining like a fire.
Within a hundred kilometers of the imperial capital, a huge alarm sounded in the sky, and all the soldiers immediately rushed out of the barracks, and then picked up their weapons and equipment from the armed trucks driven by the dwarves.
Due to the three-shift rotation system among the Empire's seven million troops, there are currently two million ground troops guarding the Empire's defense line, including various logistics units and 300,000 Imperial Air Force.
One million of the two million ground troops are elite infantry equipped with power armor, while the rest of the troops, except for the 200,000 logistics units that are not capable of fighting, are the defensive arms that manipulate the weapons and equipment within the Imperial defense line.
As the most prosperous city in the world, the imperial capital is also the most huge, and it is precisely because of this that it is almost impossible to rely on a million infantry to defend against the demons that randomly appear in the entire imperial capital, so after Zhao Yannian's return, the empire immediately established the imperial defense line on the periphery of the wreckage after the destruction of the imperial capital, this circular steel defense line with a diameter of twenty-five kilometers and a total length of nearly eighty kilometers is the crystallization of the empire's years of industrialization efforts.
The appearance of the Imperial defense line is really slowly revealed.
The steel metal walls, which are one meter thick and ten meters high, are slowly erected under the push of hydraulic rods, and the metal walls form a huge wall that glows with cyan light after making a crashing sound.
Behind the walls, as the hydraulic platform was raised, a group of heavily armed warriors ascended to the top of the wall, and their main task was to prevent demons from rushing into the walls and destroying the war structures inside.
As the fog power furnace began to run at full speed, the anti-aircraft guns and howitzers that had originally shrunk into storage began to stretch and deform to reveal their combat form, and on the metal track behind the artillery array, small rail trucks full of ammunition were running back and forth to fill the ammunition for the artillery, and these trucks quickly assembled the ammunition containers that could be directly connected to the war buildings to each gun position in a near-fully automatic situation, and the artillery that came with the loading of the shells, also began to climb into their operating compartment.
As the artillerymen took their positions and began to reangle their weapons, the soldiers on the ramparts began to unload their energy rifles from their magazines, and then grabbed a cable that could conduct elemental energy around them and connected them.
With the energy that is much higher than the output rate of the hedron magazine, the energy rifle of the constructed warrior began to emit a buzzing oscillating sound, and the energy fluctuation that was much more powerful than the ordinary form came from the muzzle, these energy rifles were designed with the needs of city defense in mind, and the form at this moment is the state in which they can exert their ultimate power.
At the same time as the imperial defense line was activated, the charred black ground of the imperial capital began to turn out of the earth, and as huge insect-shaped demonic beasts rushed out from under the ground, dense demons that seemed to be uncountable also rushed out after them.
These demons were far more elite than the demons in the previous third-level state, and even the little demons were wearing armor composed of two iron plates like scraps.
As for those mid-level to high-level demons, as soldiers in the true sense of the word, their bodies were already armed to the teeth, and as soon as these demons appeared, it already showed that the scale of this battle was much larger than before.
"Attack!"
After the demons rushed out of the ground, they randomly chose the closest direction to start their attack, and at the shout of a large demon, all the demons let out a crazy howl and began their charge.
"Artillery fire cover, minimize the pressure on the defensive line!"
As the command was issued, the howitzers in the Imperial line began to rise and reload with ammunition rapidly, and with the data sent back by the observers, soon the whistling shells were already streaked across the sky and appeared on the heads of those demons.
The fragmentation grenade exploded after falling into the demon's ranks, and the hot metal shards caused a lot of casualties among the demons, but the demon's vitality was far stronger than that of humans, as long as they were not injured in the head and heart, those injured little demons could still get up again, and then wave their weapons and continue to charge.
Within the radius of the imperial capital with a diameter of twenty-five kilometers, under the baptism of artillery fire, at least half of the demons could not reach the bottom of the imperial defense line, and the remaining half would generally suffer some more or less injuries, and now in the northwest, at least 10 million imperial subjects are engaged in the manufacture of cannonballs, and it is their efforts that allow the imperial defense line to have endless cannonballs to squander to make the imperial defense line impregnable.
As the first demons approached the bottom of the Imperial line, the soldiers standing on the smooth walls began to attack those demons, at least three times more powerful than the normal state of the energy projectile, enough to injure any existence below the demon lord, and the first few groups of demons lost their lives in a short distance of less than two hundred meters, but as the number of demons increased.
They also grew closer and closer to the city walls.
Finally, half an hour after the start of the battle, the demons came to the bottom of the steel wall, and with the help of the gargoyles, some of the little demons were grabbed and thrown into the inner side of the defense line, while at the same time, those intermediate and high-level demons who had evolved wings also spread their wings and began to try to climb over the wall.
All of a sudden, small-scale melee began to appear around the entire steel city wall, and the speed at which the soldiers guarding the city wall began to clean up the demons gradually unable to keep up with the increase in demons.
At this time, the commander of the command began to mobilize emergency troops to constantly fight fires in the defense line, although the scene looked a little chaotic, but such battles have been fought many times, so it will not really lead to the rout of the defense line.
But by this time, this demonic attack had also reached its real climax.
As the sirens sounded again in the Command Headquarters, the two voices rang in the ears of everyone in the Command as if they had agreed to meet each other.
"Beast angels appeared, three hundred thousand!"
"The Demon Lord has appeared, and fifteen targets have been found so far!"
"I already knew that these guys would appear together, order the air force to intercept the beast angels, and at the same time the air defense force protect the ground defense line, and let the Glory Warband stop those demon lords!"
The commander acted quickly as if he had known this was going to happen.
And after receiving the order, the human air force unit, which had already been ready to go, and the Glory Warband also went out at the same time to start their battle.
The human air force has now been equipped with jet fighters on a large scale, but these fighters have broken away from the form of earth technology and developed their own style.
Although these MiG-like fighters also have front air front ports and a metal fuselage full of rivets, their true combat form is to rely on the high-velocity energy cannons equipped on the wings to become turrets in the sky, rather than relying on speed and agility to fight the winged beast angels.
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When the group of fighters that appeared like predatory hornets faced the beast angels that fell from the sky, countless energy bombs began to baptize these battle weapons with little wisdom like a torrential rain thousands of kilometers away.
And the beast angel that landed rapidly after being attacked, also spread its wings in the sky to slow down, and then pounced on the human air force.
For a moment, the beast angel who should have smashed into the defense line was quickly pulled away by the air force, and at this time, the powerful professionals of the Glory Legion were also in front of the demon lord.