In peacetime, if the military is mobilized instead of a civilian survey company to investigate a high-risk area, the procedure is very complicated, unless disaster relief is involved.

But in this period when the earth is under attack, whether it is from the overall situation or the tactical level, it is necessary to figure out as soon as possible or as much as possible what those buildings and high-energy sources of unknown origin are.

So, under the command of the Planetary Defense Force, several groups of soldiers protected the volunteer scientists transferred from various places to the scene of the incident.

There is only one building in the world that is presumed to be closely related to an unknown creature, and that is under the Himalayas, and unknown sources of high energy are all over the world.

Compared to the suspected unidentified creature structure, the unidentified high energy is much closer to the surface, and several are still near the site of the test shaft of the former Earth Shelter Project, which can greatly reduce the difficulty and progress of field inspection, at least without the need to mobilize large excavation machinery to carry out the work.

The original Earth Shelter Project was about 400 years ago, and for some reason, humans proposed to build a giant shelter that could accommodate everyone under the Earth's crust, according to the plan, the underground human shelter would go deeper and deeper to the center of the earth.

Of course, humans did not have the technology to accomplish this idea at that time, but early experiments were carried out. Fifteen deep drilling experimental areas have been established around the world, and after about three years of construction, all of them have broken through the earth's crust, and some have even gone deeper.

However, with the intensification of human migration to outer space and the disappearance of external threats, the human earth shelter project came to an abrupt halt, and most of the 15 ultra-deep shafts under construction were demolished, leaving only five shafts that had been built to serve as external passages, and transformed them into national parks.

Putting away the introduction to the Deep Shaft National Park, Ankang saw the marvelous huge structure through the side windows of the gradually descending S26.

A reinforced concrete disc with a diameter of about 10 kilometers, although its height is not very high, according to the data, it is only 50 meters high, but the exaggerated size is enough to make people dare not underestimate it.

The low and huge shape is precisely to adapt to the dual needs of the entrance and security, although Ankang does not know very well what the load-bearing and defensive structure inside it is, but from the data, it itself has the ability to protect against railshelling, of course, it is the railshelling of that era.

The outermost layer of reinforced concrete is nothing more than the first layer of decorated protection, and there is even more exaggerated protection in the plan below, so to speak, if it is completed, then even the modern battleships and orbital bombers in service with the Planetary Defense Force's orbital fleet need to be replaced with real armor-piercing warheads to blast through it.

Originally, after 400 years of vicissitudes and the Earth Restoration Project, the entrances to all the five deep-bore shafts that survived should have been covered with vines and moss, and they were closely integrated and integrated with the surrounding forest and sea.

And the fact is, as a national park, there are quite a few wooden huts hidden in the woods around each entrance facility, and there are very natural man-made small open spaces in the woods. There is also a shop street right below the facility.

But now the buildings have long been emptied, and the artificial miracles created by humans in the old era, which were originally hidden in the woods, have also been rediscovered under the efficient work and firepower of engineering drones and combat drones.

After more than 400 years of wind and rain, the original reinforced concrete shell has been damaged and broken in many places, and the circular surface with a diameter of 10 kilometers has long been pitted. A lot of vines and plants covered up the holes. However, the nanomaterial panels underneath the reinforced concrete shell still seem to be the same as before, and there are no signs of breakage or cracking

The vines and plants that covered the large structure were uprooted by engineering drones, and a large area of surrounding woods was cut down or simply annihilated into a clearing, as a large number of drones required a large area to store them.

In fact, the engineering drone had already leveled the land before they arrived, and began to build the kind of three-dimensional storage warehouse that accommodated the drone. But a lot of space is still needed.

The S26 descended slowly, and after throwing the unmanned tank mounted outside into the runway, the rear hatch of the S26 opened, and Ankang, who had been waiting in the rear hatch, jumped down after the hatch opened.

Activate the anti-gravity device and land, and that set of standard actions will be completed automatically with the help of the power armor computer without even paying attention to yourself.

After Ankang jumped, the S26 turned back with the group, and it was a second to save in terms of transportation, so it was also a common thing for soldiers to jump directly from the transport plane.

After landing safely on the runway, Ankang sped up and ran to the meeting point on the map with the soldiers who had also jumped down.

The assembly point was originally a commercial street under the walls of this ground facility, but now through the arrangement of engineering drones, it has been completely transformed into a fully functional front-line supply and command base, and of course, there are many drone energy and ammunition supply points nearby.

There was an officer standing there at the assembly point.

"Soldiers, I am the commander of your operation, Major Wang Xi, and I believe that you have received the mission briefing, so I don't need to be verbose. The escort mission to the underground only needs nine people, and in 10 minutes, the people who are ordered to take your drones to Entrance 1 will be on standby. Others build a defensive ring on the surface and stand by. I would also like to introduce Bi Guohua, a senior engineer who accompanied us into the mine this time, and Dr. Takuman from the Earth Environmental Monitoring Station on the Star Ring. ”

Next to Major Wang Xi were two people dressed in the power armor of the logistics staff, neither of them very old, and the volunteer of the global environmental monitoring station named Takuman still had an eager and exploratory look on his face.

"Protect them and protect yourself."

After Major Wang Xi finished speaking, he led the two people to the rest shed in front of the No. 1 entrance, and at the same time, some soldiers' PDAs also issued prompts to participate in the mission.

When the nine men walked out of the soldiers, Ankang felt that the rest of the soldiers seemed to be in a relaxed mood, and he himself also had it, but with a slight sense of guilt for his own mood. I don't know if there is a little guilt like Ankang, and the rest of the people didn't talk to each other, but quickly scattered away to their places.

"Eagle's Nest 8, it looks like we're going to be working together for a while longer. Where is the garrison area? ”

"District 23, the nine people who were selected are all masters? What about you? ”

"Number 22. They're veterans, they're all non-commissioned officers. However, with the help of drones, it is true that there are not too many people. Then I'll go first, good luck. ”

"Good luck."