This underground fortification covers an area of about 70 square kilometers and is divided into A/B every 10 square kilometers from east to west...... There are a total of 7 defense areas in H, in which there are 5 main passages running longitudinally through each area, and in the westernmost area, Area H is the core area, which is the production line where Professor Zhou builds cold nuclear reactors and carries out the final assembly of mecha warriors. 、

The closest to the passage is Area A, which is the fighter manufacturing area, and because it is close to the passage entrance, the built fighters can fly directly out of here.

Area A concentrates about 12,000 battle mechs with 70% of the defense force of the underground fortifications, and they are divided into 5 teams to guard the 5 passages leading to the depth, between the entrance of these 5 passages and the main passage, there is an open area similar to an inverted bell mouth, robots rush in from the neck of the bell mouth, and the escort troops set up 3 lines of defense in this open area, trying to block the breakthrough of the robot general.

Combat Mechs have strong forts on three lines of defense, which they can use as cover to attack the rushing robots, mainly armed with shell-piercing shells and individual missiles, as well as heavy anti-materiel sniper rifles.

There are not many heavy weapons, because this is underground, and the use of heavy weapons is very likely to cause the collapse of the fortifications and cause great trouble to yourself.

But heavy weapons are not absent, such as heavy artillery, high-energy laser cannons, heavy anti-armor missiles, etc., are also equipped with several in each brigade, but general defense is not used, and only at the threshold of life and death will it be authorized to use.

The mecha warriors all retreated into the fortifications, and no longer rushed up to engage in a direct hand-to-hand battle with the robot warriors, because in the battle at the entrance of the passage just now, thousands of mecha warriors, with their steel bodies, failed to stop the 13 robot warriors outside, those robots' melee ability is extremely amazing, and the mecha warriors whose strength and defense capabilities are relatively weak are like toys in front of them, and they are cut all around, and the 2-kilometer-long passage is scattered with the remains of the mecha warriors, most of whom were split into two pieces by the robots。

These robot warriors are all about 2.5 meters tall, dressed in light blue and gold armor, their bodies do not look heavy, but their strength is extremely amazing, the war knife in their hands is invincible, and the steel security door weighing 1,000 tons and 1 meter thick in the passage is cut open like ghee under their knives.

The number of them is not much, only 13 of them, but these 13 robots, starting from the offensive channel, have been killing all the way, breaking through many defenses, and not losing a single one!

"Why are these robot warriors so powerful?" General Mei asked, frowning, looking at the rushing robots from the defensive fortress.

"Yes, in the past, we relied on the number of people to kill a group of them, but today we have gone wrong, sacrificed so many armors, and actually didn't take any of them!" Lieutenant Colonel Li Zhenzhong, who was dressed in military uniform, also echoed, as the commander-in-chief of the mecha team of this underground fortification, he should have sat in the command headquarters to command, but when he heard that General Mei wanted to go to the battlefield with weapons in person, he couldn't stop it, so he had to accompany the general to the forefront of this defensive position.

"Have you noticed that the colors and patterns on these robots are different from before?" General Mei asked with a solemn expression when he saw that the robots were attacking the first line of defense, and the sound of violent explosions came one after another.

"Yes, I've also noticed that the color of these robots is light blue and gold, and those robot generals in the past were mainly silver-white and pale gold, can't their level be improved again?" Li Zhenzhong looked at the battle situation in front of him, and couldn't help but become anxious in his heart, those robot generals did not even appear in the slightest damage on their bodies under the fierce artillery fire of our army, as if the rockets and missiles launched by our side were just tickling them, and even the heavy anti-materiel sniper rifle bullets hit them like rubber bullets that did not have any effect.

The only thing that can stop them is the kinetic energy generated by the impact of missiles and other shocks, and the shock wave generated by the explosion, which can knock them back a little.

If they continue to fight like this, it will be a matter of time before they reach the first line of defense.

The first defensive front can't hold it, and the next two can't hold it either!

"General, when will our mecha warriors be ready?" asked Li Zhenzhong.

"It's going to take more than half an hour to come out with the first one!" General Mei held his heavy sniper tightly in his hand, his eyes fixed on the robot that was getting closer and closer in front of him, and his brow furrowed more and more.

"Then we have to fight for at least one hour! Even if they are all gone, we have to hold them back!" Li Zhenzhong said with a resolute face.

"I'm worried, our mech warriors won't be able to stop them!" General May seemed to muttered to himself.

"What?" Li Zhenzhong was taken aback.

"The level is not enough, the level we designed is not enough!" General Mei shook his head slightly.

"Level, are you saying that the mecha generals we designed according to the level of the silver generals still can't beat them?" Li Zhenzhong became more and more suspicious.

"Yes, the level of this batch of robot generals is at least at the level of golden generals, we want to ask Professor Zhou to analyze the battle situation ahead immediately, and let them organize experts to evaluate the combat power of this batch of robots to see what happened!" General Mei waved his hand, and seemed to have made a lot of determination, "Authorize the use of heavy weapons, and at the same time immediately report to the headquarters and request support from the headquarters!"

Li Zhenzhong's face changed, but he immediately responded: "Yes! Immediately execute the order!"

Authorizing the use of heavy weapons means that it has reached an emergency threshold of life and death, even if it blows up all of them, we must resolutely block these robots outside!

Lieutenant General Li Zhen's order was quickly conveyed, and the robot warrior had already rushed to a place less than 200 meters away from the first line of defense.

"Turn the muzzle, aim at the robot, and concentrate on the cannon!" shouted Liang Shoudao, the commander of the heavy artillery!

"The first set is ready!"

"The second group is ready!"

The controllers of each group reported that they were ready.

"Listen to my orders and fire!" Liang Shoudao waved his hand!

"Boom, boom, boom......!" The 21 heavy guns of the 12 brigades on the front line let out an earth-shattering roar at the same time, and the shells weighing 500 kilograms whistled out of the barrels, concentrating on the group of robot squads on the far right.

A deafening explosion came from not far away, 21 heavy shells exploded almost simultaneously, and the huge shock wave blew up the entire underground fortifications like stuffy jars, and the fire and smoke immediately filled the space here, and nothing could be seen.

"How's it going?" General May asked as he took off his earmuffs and stumbled up from the ground.

"Twenty meters back!" replied Li Zhenzhong.

"How is that possible?" General Mei's eyes widened with an incredulous expression, "21 shells, so there are more than 10 tons, how can they be repelled by 20 meters?"

"General, are our shells all paper-paste?" Li Zhenzhong also looked incredulous.

"Papier-mâché, you and I are a fake lieutenant general, right?" General May said angrily.

"No, no, no!" Li Zhenzhong consciously lost his words and hurriedly corrected it, "Hey...... The Group responded. Seeing the fax machine ticking, he hurriedly checked the information.

"What does the expert group say?" General Mei hurriedly asked.

"Space Enchantment?" Li Zhenzhong looked confused.

"What the hell is going on, you can tell me clearly!" General Mei was anxious.

"The conclusion of the expert group is the space enchantment, and I don't understand the subsequent discussion!" Li Zhenzhong helplessly handed the information screen to General Mei.

"You can't read it, think I can read it!"

General May was furious.

"I didn't expect a robot to be able to make such a thing as a spatial enchantment!" Suddenly, a voice came from outside, and the two turned their heads to see that it was the seventh head of the Xuanqi Sect.

"Master, what do you mean?" General Mei hurriedly asked.

"The spatial enchantment is a magical power that only our cultivators have, and it is a magical power that only has the peak of the god level, and its mechanism is to spread out a little energy in the space to form a larger contact surface to prevent sharp damage caused by too high energy density. ”

"Oh, are you saying that they dissolved the energy of the shell bombardment into other spaces?" Li Zhenzhong suddenly realized.

"That's pretty much it!" said the Seven Masters.

"And how do you break this?" asked General May.

"There is no way, only to bombard him with more powerful energy!" said the Seven Masters with a shake of their heads.

"But where does the greater energy come from?" General Mei suddenly felt dizzy.

"General, the headquarters has replied, saying that there are also two hundred robot generals outside, and we are fighting with the robots at the entrance of the passage, and they can't support us at all!" Li Zhenzhong said hurriedly.

"Where are so many robot warriors out there!" General Mei threw the heavy sniper in his hand to the ground with a "snap!", "If you can't kill or smash, what method do you let us use to deal with robots?" he shouted.

"Let the old man try it!" said the Seven Masters.

"Okay, good, there's a boss of Lao!" General Mei said quickly.

The fire went out, the smoke cleared, and the voices of the 13 robot warriors were revealed, who stood still but stopped moving.

A small group of figures appeared opposite them, and everyone who knew them knew that it was a group of cultivators led by the Seven Masters and Shangyuan Qingjun who were confronting the robots.

One of the robot squad generals stepped forward and raised his sword as if he were saluting.

"Who are you, please report your name, an immortal and nameless ghost under the knife of Ga!" he said with a smile.

"Hmph! The old man is a cultivator, the head of the Xuanqi Sect under the Taixu Sect, Qibu Qing is also, and he wants to ask you machine bumps for advice!" said the seventh master with an arrogant face.

"Okay, then let's go a few rounds with the boss!" replied the robot warlord respectfully.

"Hmph, there is no nameless soul under the Seven Towers!" said the Seven Masters with a sneer.

"It's numbered γ131!" said the machine warlord with his head held high.

"Hmph! I don't even have a serious name, it's just a bunch of iron lumps, look at the tower!" Before the words fell, the Seven Masters sacrificed the magic weapon of the town faction, the Seven Star Linglong Tower, and hit the robot general who claimed to be γ231 on the head!