Founded in 141 A.D., the Border Guard Force is a relatively young military formation.

It is mainly responsible for establishing defensive positions between human settlements and xenoactive areas to ensure the relative safety of human settlements.

After the establishment of the Border Defense Force, a total of 15 military bases were built, and the defensive positions ran through the north and south.

south, to the Gulf of Bias, the southernmost point of the Augus; North, to the Coldland of Colm Icefield.

The name alone is unrealistic, but it is much more intuitive from the map.

As the only continental structure on Gaia, the Ancient Continent is like a huge palm pressed on Gaia.

The longest point of this hand, the "fingertip", reached the south pole of Gaia, where the Bay of Bias is located, and where the first military base of the Border Defense Force is located.

Between the "little finger" and the "ring finger" of the "palm" is the oldest bay on Gaia, the Bay of Ogu.

Surrounding the bay of Ogu are the three domes of mankind.

The "fingertip" of the new Cerberus dome.

The seventh dome of the "center of the ring finger", Eruber, and the first dome, Ehinval, the "end of the ring finger".

The area where Posivar is located is located directly above the "thumb", about 1,200 kilometers from the Colm Ice Sheet, in an extremely cold place with abundant resources but also an extremely harsh climate.

It is also the closest dome structure to a human settlement and a xenologically active area.

The 7th Military Base of the Border Defense Force, where Nanyingjian is located, is located in the Hermes Mountains, about 330 kilometers northwest of Posivar, and the main structure of the base is built at the foot of Langyue Peak at an altitude of 6,500 meters, which is also one of the few plains in the Hermes Mountains.

Since the establishment of the 7th Military Base, the 125-kilometer-long defensive positions it is responsible for have never been subjected to a large-scale xenomorph invasion.

These expulsions to the westernmost part of the Ancient Continent have been stable for more than a decade.

But today, the appearance of the Nightmare-Class Alienated Mother seems to tell the world that they have never disappeared and have made a comeback.

"Wouldn't it be useless if such a small number of troops were to be deployed according to the previous defensive position?"

"But the defensive position of the seventh military base was originally the longest of all bases, and now the number of enemies has exceeded one million, and there are a large number of K-class xenomorphs mixed in it, how can we ensure that the position is foolproof if we don't make use of all the positions?"

"Foolproof? You're dreaming! Now we have to think about how to maximize the defensive strength! Although there are many of these xenomorphs, there are not many of them that pose a threat! If necessary, it is not impossible to give up some positions and let them in and be digested by subsequent reinforcements! ”

"Reinforcements? Where's the reinforcements? It's been three days, and other bases are still worried about problems in their own areas and dare not send troops, and the interstellar forces are not good at ground operations, do we want to ask the defense chiefs of the major domes for people? ”

"Why can't it? Oh, they have to be lost on our side before they can send troops? ”

"Hey! That was not what I meant! I mean, what if they let them come? This is a battle in the north, not a defensive operation in the conventional sense, so what if they come? ”

"That's better than holding it up on our own! At least give more supplies and equipment, right? ”

"The supplies are enough, are you equipped...... The existing equipment is no problem for dealing with K-class xenomorphs...... The key point is still on that nightmare-level alienation matrix, this thing has never been seen before, if it can't be solved, everything else is nonsense. ”

After the two base leaders finished arguing, they all looked at Nan Yingjian.

Nanying Jane hadn't spoken, but she had been listening.

Now is the time to make up your mind.

"Abandon these defensive points between A0A15 and shrink the personnel around the base, while contacting the Interstellar Force and having them send the Sovereign to prepare for a covered bombardment of the combat area." Nanying Jian paused for a moment, and then said, "That nightmare-level alienation matrix...... I'll take care of it! ”

After hearing this, the person in charge did not raise any further objections, and immediately saluted: "Yes!" ”

On the morning of February 21, 150.

The Sovereign enters a predetermined orbit and synchronizes with Gaia's rotation, ready for battle.

But the King's lethality is still too great, and it will not fire easily unless it is absolutely necessary.

In terms of ground deployment, relying on the 7th Military Base, Nanying Jian built a number of new defensive positions on the periphery of the base, compressing the 120-kilometer defensive line to 1.5 kilometers, and supporting each other through a triangular structure.

At the same time, in order to prevent the enemy from crossing the defensive line and directly entering the territory of the glorious republic, Nanying Jian mobilized a large number of unmanned defense equipment from various defense bases.

They are mainly responsible for cleaning the passes of the Hermes Mountains for fish that have slipped through the net.

So when everything was ready, it was already the night of the 21st.

Nanying Jian sat on Pinoxiu's shoulder, observing the activities of the xenomorphs in the distant valley, while discussing some recent anomalies with the adjutant.

"We did what we had to do...... It shouldn't be a problem. The adjutant said.

"I hope so......" Nanying Jian sighed and asked, "What about the 'first sister'?" Still nothing to respond to? ”

"Yes, she hasn't been out of the house, and the activities in the base have stopped."

"Stopped? When did it happen? ”

"Just today at noon, both sets of auxiliary engines of the Tornado were shut down, and now only one set of main engines is working."

"Tsk...... Stopped......" Nanying Jian pondered these details and called up the observation data, which showed that the gathering rate of xenomorphs had slowed down significantly, and the current number had reached a terrifying 1.5 million...... But it's close to leveling off.

"Boss, these xenos...... We can't have brought it in, right? "The adjutant said it very vaguely.

But Nanying Jane understood, and she thought to herself: "It seems that the 'first sister' doesn't know anything...... As soon as the work stops here, the activity of the xenos decreases...... Tut...... I've got to figure out what they're hoisting and seeing......

Thinking of this, Nanying Jian said to the adjutant: "Pinoxiu, I have stayed here, if there is any situation, remember to inform me in time!" ”

The adjutant was stunned for a moment, and hurriedly asked, "Boss, you don't want to go to ......"

"Shhhh Don't leak the news, I'll go back as soon as I go! ”

With that, Nanying Jane jumped off Pinochio, then changed to a flying machine and left the observation post.

Do it when you think of it, never delay, this is Nanying Jane's consistent style.

Although she was also very curious before, her principles were still very clear, what should not be seen, what should not be cared about is that you must not cross the minefield.

But now it's different, the large-scale gathering of xenomorphs has seriously threatened the security of the people of the Republic, and if these things are related to Xiao Qing's recent abnormal activities, then she must take a clear look.

After returning to the temporary base, Nanying Jane deliberately walked through the barracks and then returned to her room and locked herself up.

Then he changed into desperate weapons and slipped out of the rear of the temporary base and went straight to the seventh military base.

Navigating through the snow, you'll be discovered even if you have the world's most advanced crystallization hideout...... But Nanying Jane did not intend to enter the Seventh Military Base from the ground.

She made a big circle, started to climb from the back of Langyue Peak, and after spending an hour on the mountainside, she decided to "air strike" the seventh military base from here.

But before that she could do so, she had to find a way to hack into the Tornado's surveillance system, or she might be shattered in mid-air.

"Xiaowen, I still have to trouble you!"

Qin Wen, who was in a semi-sleeping state in the Sovereign, slowly opened one eye, and she responded, "No problem, leave it to me." ”

……

"Hey, I'm so tired."

"Tired? What's so tiring about you standing up there in a daze? ”

"I'm tired." After Guard Armor moved his body, he whispered to Guard B, "Hey, why did you stop suddenly?" ”

Guard Yi didn't want to answer, but when he saw that there was no one around, he said, "Haven't you heard?" ”

"What?"

"Xenos are ready to attack again."

"Huh?" The guard armor was startled, and his voice trembled: "What...... Why did it suddenly ...... By the way, isn't there a border guard? ”

Hu Wei B didn't elaborate, only patted Jia's shoulder and said, "Yes, so you don't have to worry, just stand guard honestly." ”

Saying that, Escort B left.

When only the armor remained, he was not as calm as before.

Behind him is an abyss, and from time to time there are creepy cries in the holes, and there are xenos outside...... It feels ...... That's great......

"Smack"!

"Who?" The armor jerked back, and the vision mod immediately went into battle mode, but there was nothing in the darkness.

But when he relaxed, a hand reached out from behind him and followed......

"You can get some good sleep." Nanying Jane dragged the armor into the shadows and took his credentials.

After copying it, Nanying Jane threw away the voucher and walked forward.

After stepping into the air, Nanying Jane was grabbed by gravity and fell towards the center of the earth at an increasing speed.

In just two seconds, she was past the place where the ignition had been installed.

But the data showed that she had to descend another seven kilometres to reach her destination...... It seems that the pit dug by "First Sister" is really deep.

When the data showed that the current altitude was -7902 meters, Nanying Jian activated the descent device.

This was followed by an underground stop at an altitude of -8211 meters.

There were a large number of engineering robots parked here, but now they had stopped working, and only a little light could be seen flickering in the distance in the darkness.

Putting down the vision module, Nanying Jane activated the desperate armed coverage, and then saw an extremely magnificent scene.

I saw that in the depths of this dark underground world, in the center of an area composed of regular square stones, a dark red gate with a height of about fifty-seven meters and a width of about fifteen meters stood there.

The light came from the side of the door.

There are also some armed men operating there.

'A door?! Nanying Jane frowned, is this what the "First Sister" intends to take away from the underground?!