This Terra is a little weird.

"I remember that this wasn't what I asked for. Besides, how did you do it?"

"I thought it would work, and it really worked."

???

"The power core is so badly damaged, and you guys are still doing this, is it true that nothing will go wrong?"

"It was going to be a problem, but my technician and I thought, if we add a few more nails and two more energy sources, it will work!"

Luo Chen stared at Luffy in a daze. He always felt that there was something wrong with this engineer.

And that "dump truck", I always feel that it lacks some decorations and is incomplete.

Luo Chen tried his best to resist the urge to cut open Luffy's brain for research.

"Haha, haha, good job, next time stop thinking nonsense with me!"

Although it's a bit strange, the problem with the siege vehicle has been solved. The next step is to work on the attack batches of the troops.

First, the storm troopers acted as the spearhead and launched a boarding battle with the siege vehicles to open up the situation. Then the first, third, and fifth battalions began to attack along the opened road with the storm troopers. This was the first echelon, led by Luo Chen.

The second echelon consisted of the 2nd Battalion, the 6th Battalion, the newly formed 7th Battalion and some storm troopers. Luo Chen handed them over to Tallulah, and they were responsible for capturing various functional areas of the Icefield Fortress.

The third echelon is composed of the 4th Battalion and the newly formed 8th Battalion, as well as several additional destroyer teams composed of warlocks. Luo Chen has already chosen a commander for this force.

After finalizing the general plan, Luo Chen immediately organized the troops to conduct intensive training, especially the Seventh and Eighth Battalions. There were fewer veterans among them, and Luo Chen was very worried about them, but everyone's morale dispelled his concerns.

Although they do not have the weapons and equipment of the Astra Militarum, they have a spirit that is comparable to theirs, and that is enough.

Luo Chen generously imparted all the knowledge about siege warfare and street fighting to everyone, and everyone did not hesitate to practice these skills with their greatest energy every day.

However, these preparations alone are not enough to capture the fortress. It is also necessary to confuse the enemy's judgment and make them unable to figure out where the Integration Movement will launch the attack.

During this period, Luo Chen learned the information about the defenders through his spies in the city.

There are about 4,000 Ursus regular troops, 8,000 noble auxiliary troops, and many patrol members. The total strength exceeds that of the Reunion Movement.

But the only ones who can really fight are the Ursus regular army and some elite noble army.

In the last two days, Luo Chen led the storm troopers to attack everywhere. Every time they caused some damage, they would leave in a huff. The defenders couldn't catch them at all. The time and place of the attack were completely random.

"Where exactly are they going to attack?"

"Although their attacks seem to be irregular, but..." The staff officer pointed to two points on the map.

"East and southeast?"

"They destroyed the most city defense artillery here. Perhaps they will launch a real attack here."

"The guerrillas are very cunning, their ideas are not that simple."

"Then how about we replace the noble soldiers on the southern and western walls with our own people? After all, they..."

"We are too scattered, but there is no other way. What does Duke Geller say? Will he give us support?"

It’s nothing to the soldiers of the Empire of Sri Lanka. He believes we can handle it.”

"This bastard! The empire is in such a mess because of this kind of people! Look at what they have done to the country. They are unworthy of the trust of the Emperor!"

"In short, we must protect this fortress. This integration movement is not a good thing."

"Let them come! I want to see how strong they can be."

There was good news during these few days. The Patriot brought his team to the assembly point of the Integration Movement.

"Mr. Patriot, you are here after all." Luo Chen came out to greet them.

"Is what the letter says true?"

"You know the answer in your heart. The Integration Movement does not have the technology to fake it yet."

"I hope……"

"Don't worry, I will do my best."

The Patriot started discussing something with Luo Chen right away, but only the two of them knew the details.

"Now, Mr. Patriot, I would like to appoint you as the commander of the third attack echelon of the Integration Movement. What do you think?"

"my pleasure."

"Well, while there is still time, I will take you to familiarize yourself with the situation of the troops."

After coordination, the Black Shield Guards led by the Patriot were reorganized into the third echelon, while Froststar and her Snow Monster team were incorporated into the first and second echelons.

"Ms. Froststar, you haven't fought against the regular army yet, right?"

"No, my father did."

Luo Chen didn't wonder why a pure-blooded Wendigo would adopt a Caster.

"We haven't fought before, but I do have some experience in street fighting, so I'm currently training the troops."

"We have to train too, right?"

"No, there is no time. I prefer to let you play freely, but you still have to familiarize yourself with the general situation and ensure that you can cooperate with the assault team."

"I see, let's get started now."

"Okay, happy cooperation, Miss Froststar."

"Well, it's a pleasure to work with you."

Chapter 1: Attack ()

"Get up and stand guard." An Ursus soldier patted his companion.

The man took a few sips of water and asked: "What time is it?"

"Eight in the morning."

He looked at the rising sun and said, "Okay, go to sleep."

"Wait a minute!" The man stared at the direction where the sun had just risen. There was a black spot that was getting bigger and bigger, and its speed was getting faster and faster.

By the time he saw clearly that it was a strange-looking moving city, it had already rushed to a distance of less than 300 meters.

"Sound the alarm!"

The shrill alarm sounded throughout the mobile city, and the defenders immediately took up combat positions and responded very quickly, but the Integration Movement attacked the eastern city area defended by the noble army.

"Quickly send the second battalion to support!" The commander immediately gave the order and adjusted the defensive positions in the city, but the attack came too suddenly and the command was somewhat chaotic.

"Everyone listen up! When the attack begins, we only need to tear apart the defenders on the city wall in front of us, then quickly charge in, open up a landing site, and let the follow-up troops deal with the enemy's reinforcements."

Luo Chen said to the Stormtroopers: "In order to integrate the movement! Be prepared to withstand the impact!"

With a loud bang, the mobile city plunged into the eastern city wall. Before the city defense artillery could fire, it was destroyed by the warlocks of the Snow Monster Squad.

The stormtroopers used grappling guns to put grappling hooks on the city wall. The soldiers of the noble army were still in panic, and the officers had to use some means to get them back to their positions. They grabbed their weapons and tried to cut the grappling ropes that were thrown up.

The next moment, several bombs flew out. The noble army reacted quickly and had no time to throw the bombs back, so they had to raise their shields to block everyone. However, these were not Originium bombs, but armor-breaking grenades.

The violent explosion blew away the troops on the city wall. Those who were closer were torn into pieces, while those who were farther away were either killed by grenade fragments or lost their combat effectiveness due to bleeding ears.

Luo Chen was the first to climb up the city wall. He raised his gun and shot dead the crossbowmen and heavy weapons operators who had just climbed up. Stormtroopers climbed up the city wall one after another, and while the enemy was still in panic, they shot crossbow arrows at them and knocked them down.

"The city wall is under control!"

"Take down those cannons!"

The stormtroopers killed the soldiers around the city defense cannon and operated the cannon to bombard the barracks and signal base stations in the fortress.

"Warlock troops begin bombardment! Five base firepower!"

The Stormtrooper Warlock teamed up with the Snow Monster Squad to cast powerful spells at the front position.

Taking advantage of the bombardment, the Stormtroopers quickly took down several temporary defense lines and ran to a safe distance.

"Teams two, four, and five, assault the left wing. Teams three, six, and eight, assault the right wing. Teams one and seven, follow me and attack the center."

After the bombardment, the noble army was disoriented and unaware of the enemy's main attack direction, and was forced to retreat again and again by the stormtroopers.

Luo Chen led a team to shuttle through the building and went around the defense line to attack the defenders. A vanguard team had been lying in ambush there. When they saw the storm soldiers rushing over, they suddenly jumped up and fought with them.

The sudden attack made the team a little confused. Luo Chen was pushed to the ground by two people and one of them grabbed his neck.

He did not panic. He skillfully took out his combat knife and stabbed it into the neck of the other man holding the knife. He wrapped his legs around the burly man on his body and hit him directly in the waist with his spiked combat gloves.

The sturdy man felt pain and loosened his hands. Luo Chen seized the opportunity to pin him under him, pulled out his pistol and shot him, then killed several enemy soldiers who were entangled with the storm troopers, and dragged the wounded into the bunker.

Luo Chen took out some gauze to stop the bleeding of the wounded man. The wounded man was hit in the lower abdomen and was unable to move.

"Dre, get the bomb ready."

They were now right in front of the enemy's front position. Several bombs had fallen into the position. The noble soldiers cursed and threw some of them out, but some bombs still exploded, destroying the heavy weapons on the position.

The Stormtrooper Warlock took advantage of the gap and cast spells at the smoke. After a series of explosions, the heavy armored team members took the lead and the three teams quickly cleared the front line.

Luo Chen used an engineering shovel to kill a heavily armed man who rushed over, then raised his gun and started shooting at the last person. The last person he killed was only three steps away from him.

"According to the plan, teams two and three will go clean out the weapons depot, and teams one and four will continue to follow me in the assault."

"Notify the first and third battalions to begin the attack, and the fifth battalion to attack the industrial zone!"

The soldiers of the Reunion Movement are already quite mature. Apart from their different weapons and equipment, there is no doubt that they can already call themselves members of the Cadia Blitzkrieg, at least in terms of physical fitness, which is even better than that of humans.

Luo Chen led the storm troopers all the way forward until they actually encountered the Ursus regular army.

The shells fell on the streets, turning the entire street upside down. The stormtroopers who failed to react were killed by the Ursus vanguards who counterattacked.

The officers of the Ursus regular army had been watching the battle and exploring the offensive routes of the Integration Movement. The leading officer personally led the team to suppress Luo Chen's team. They had firearms.

"General, we need support, they have guns!"

"I saw."

Luo Chen put on a dark green helmet and handed the automatic rifle to the captain. Luo Chen had taught him how to use it before.

"General?"

Luo Chen smiled at him and took out a long cloth bag from behind, which contained an automatic rifle.

"I have one more."

After saying that, Luo Chen took off the camouflage cloth on his body, revealing a dark green bulletproof armor engraved with a golden double-headed eagle.

When they found the mobile city, there were still some stocks of highly refined Originium in its energy storage. Luo Chen spent a lot of money again and bought the purest Originium from the black market.

Relying on the little energy in the supplies, he took some more weapons and armor just to deal with the Ursus regular army.

He put on his protective mask and inserted the magazine into the automatic rifle's chamber.

"cover me."

Then he rushed out of the bunker, and the bullets hit the bulletproof armor and were bounced off. The bullets fired by the gun could not cause any damage to the bulletproof armor at all.

Luo Chen took the lead in shooting and knocking down the commander, then threw out an armor-piercing grenade and hid in the bunker. An Ursus soldier had just picked up the grenade when he was shot dead by the stormtrooper captain.

The explosion killed the surrounding soldiers. Luo Chen and the Stormtroopers captain shot the surviving soldiers one after another, and then reorganized the team at the street intersection.

"The regular army is here, and life will be difficult."

"Stop talking nonsense, tell the second echelon to start attacking now."

Just as the defending troops were gathering to the east, a huge explosion was heard on the western city wall.

"Report! The western wall has been breached! The enemy leader has superb Originium skills and can set people on fire!"

"What?! Where did they get so many soldiers?"

"Don't worry about that for now. I'm more concerned about why they want to divide their forces and why they want to attack the Western Wall."

The commander looked at the city defense map and said, "Damn it! They are going to surround the storage area! Withdraw the third battalion immediately!"

"Wait a minute, why don't they attack the core city? Only by attacking the mobile city there will the offensive and defensive battle make sense."

"The storage area has our supplies. If we lose them, we won't be able to defend the core city."

"We have to move our headquarters. If the battle fails, leave the core city immediately. We will still have a chance to fight."

"Let the artillery bombard the West City and the East City to force them back."

Luo Chen saw that the defenders' offensive had eased and they were even retreating.