The maneuver mode of the army in this world is different from that of the earth. Super transport aircraft carrying a large number of combat mechas, the shadows cast on the ground cannot help but look up. Super delta-wing fighter aircraft floats in the sky. Engines on both sides of the plane, as big as trucks, drive huge propellers, drive powerful airflows, and fly in the sky.

The largest transport aircraft that can be manufactured in the Dawn Republic can only transport mechas, so there is no wide bin inside, so the aircraft is very compact. About twenty-five manned mechas are embedded in the carrier compartment, just like batteries are embedded in the battery compartment.

There are a total of fifty aircraft, of which forty are fighters that transport mechas. They can transport about one thousand mechas to transport an armored division. The current armored division in the Republic of Dawn is one thousand mechas, and there is only one transport group that can transport an armored division to reach the target area with the fastest force. This is the fastest transportation force. The secondary level transportation force is a large propeller carrier similar to the Dandelion missile launcher. With such transportation force, the Dawn Republic can maintain the capacity of twelve armored divisions. As for large-scale transportation with the secondary level, the transportation force for airships in this world. Of course, if airships are used for large-scale transportation, it will be a full-scale war.

Compared with tanks, if the combat effectiveness of the fighter mecha is on the plain, when the land mecha and the tank cluster fight one-on-one, it may not have an advantage, just as the special forces may be hit and killed by QQ cars on the main road. However, the battlefield is changing, and the special forces will not stand in the middle of the road and open fire on the QQ car cluster. The tank cluster cannot appear in front of the mecha. With the gradual improvement of the sky attack system of the Dawn Republic, the ground battle on the plain must be hidden under air firepower. On the contrary, in the mountains and cities, such fighter mechas with thick metal plates wrapped in streets, can easily knock open the fence or even kick a hole in the wall, which is worthy of armor strength. Moreover, in human form, fire flexibility is a nightmare for all soft targets.

The fastest transportation method of such a reorganized division arrived at was the drilling site in the northern territory of the Republic of Dawn. At the same time, the armored forces of about ten divisions and the roar of multiple propeller carriers, mobilized towards the north with many people in the Republic of Dawn looking up and surprised. Such a huge military force mobilization made everyone ask a trace of unusual breath.

This is the huge military strength that officers of the Son of Heaven can mobilize in this world within four days. All the colonels' bases are insignificant in the face of the true military strength of the world's only industrial country. No other reason, this century is the arrival of the Red Alert Base. Even if nuclear bombs are not used, they will still be flattened. To use nuclear bombs? It is not a scene where the Red Alert Base can turn the tables. Under the gradually improved space surveillance network, unless the underwater nuclear submarine suddenly floats and launches on the coastline. No land-based launch vehicle will survive.

With such a strong military strength, there is not even a test knife on the surface. Such an advantage was formed when the colonel entered, so after Marshall and the others came in, they kept bowing their heads and recognizing their fate until today, and they could not be hard. At the same time, they could not even play tricks, and they could only act under the control of the Emperor Alliance represented by Wang Long.

With such strong military strength, large-scale wars are absolutely impossible to occur now, and the battlefield is far away from the surface. The battlefield chosen for such military strength in the future is underground.

The order of the officers of the Emperor's Alliance to march north is now being implemented.

Ren Di walked down from the plane and stepped onto the sandy ground. This was one of the places that Ren Di had rarely appeared outside non-industrial areas in the past two years. Wang Long appeared with Ren Di, and neither of them was wearing mechas. For Ren Di, Ren Di was now strong in his perception. Ren Di could clearly feel that if he put on the mecha, his whole body was covered with steel. Although the blood was thick, his keen perception was blocked. Instead, it would be more than worth the loss.

As for Wang Long? Wang Long followed Ren Di to protect Ren Di. He needed to understand the turbulence within Ren Di's sight target, so Wang Long did not wear a mecha. The two arrived at the underground drilling site that was already a military base in no particular order.

Accompanied by fully armed soldiers and five fighter mechas, the two sides quickly arrived in the drilling cave. The gasoline-fueled engine finally developed under the mature technology of coal-to-oil in this world. As for the turbofan engine, it also began to develop, not for fighter jets, but for the development of cruise # missiles. As for the low-end fossil fuel engines, as the power source of type vehicles, it gradually developed under market demand.

When he came to the huge drilling well, he could see many cave workers working with safety helmets. When Ren Di and the others arrived, these cavemen watched the arrival of these big figures curiously. At this time, a recruited researcher had already walked to Ren Di and Wang Long to introduce the current situation after showing his identity certificate.

There are many drilling wells in the north now, but drilling wells have drilled a passage of no more than one meter toward the ceiling of the underground world, and it has not expanded. This cave is very inconspicuous above the underground world. Before expanding this passage into a transport drilling, it is necessary to carefully investigate the situation of the underground world. Unmanned exploration aircraft are needed first, and then an advance team composed of cavemen is sent. Finally, drilling is expanded and troops are sent in. This is the classic process of the underground alliance expanding in underground spaces with the help of the surface.

This process is invincible in the underground world in the southern part of the mainland. The entire underground alliance army appeared in various underground spaces like opening a portal, gaining a huge advantage in military strength in a very short time.

Now the expectation of the Son of Heaven and the Knights of God is copied to the north. Now, after receiving the introduction of his own recruitment, in a temporary darkroom near the drilling, the space door opened and Colonel Alice walked out of the space door. As the executor of the underground strategy, Alice has recruited soldiers near each drilling well on the surface. As long as there is enough electricity support, the space door can support Alice to appear in various drilling areas. Of course, the premise is that its own recruitment soldiers should be provided with coordinates and energy to provide portals to open.

Alice, who came from other drilling areas, looked very bad. She asked Ren Di and Wang Long to enter the portal without saying a word. Under the pull-down power transmission of the elemental fuel rod engine switch, the dark portal suddenly expanded.

Ren Di stepped into the portal with no passage in the portal. Behind the portal is the solid cement floor of the target. Alice's recruitment soldiers and Wang Long's recruitment soldiers were already waiting here. After Ren Di walked out, Wang Long and Alice's heels came out. Ren Di suddenly made up his mind, what would happen if Alice and Wang Long were activate the real sword while coming out of the portal?

Well, Ren Di quickly threw the scene of the body separating from the two places out of his mind.

Seeing Ren Di's face strange, Alice and Wang Long obviously felt Ren Di's inexplicable changes. Alice was stunned for a moment, and looked at Wang Long with a smile on her face with a touch of charm. Wang Long frowned and looked at Ren Di, obviously thinking that Ren Di was thinking about it. Without communication and guessing, it was easy to make misunderstandings. Of course, Ren Di was embarrassed and said to these two: "When you two came out of the portal, I suddenly thought of a way to kill you two." The perverted thoughts were suppressed in my heart.

The episode passed quickly, Alice said: "We are in trouble in the underground world." The computer quickly turned on, and the screen showed the underground world that had been detected in the northern world. Below the undulating surface, flat underground cavitations in the rock formations were in the rock formations.

Drilling wells on the surface are like tunnels drilled out by worms in apples and stretched into these underground spaces. In the infrared images captured by unmanned detectors in these underground spaces, teams of special demons are active in these spaces.

From the shots, all the demons can show that this is the same population in terms of body shape characteristics. Alice turns the picture, and the demons of this race massacre various races in the underground world.

Wang Long said: "This situation is distributed in forty-two detected underground spaces and is very wide. According to known situations, it is not ruled out that a force is emerging in the northern underground world."

Ren Di said: "I asked Yun Chenhe that the army on the surface of the Republic of Dawn can deal with all the situations at present, but the situation in the underground world must be curbed now." Ren Di looked at Alice.

Alice spread her hands and said, "Is this trouble just thrown on us?" Ren Di said, "It's not about you. The troops on the surface of this war will participate. If you have sufficient underground operations, you should be prepared."

Alice said: "What preparation? Are we not the main force of the war in the underground world?" Ren Di said: "We may use nuclear weapons in the underground world." After the words fell, Alice said: "No." It is very comfortable to use nuclear weapons to destroy the target. However, if the Dawn Republic uses nuclear weapons underground, nuclear radiation will not spread to the surface. However, for the underground alliance that is about to occupy the underground, the underground environment is relatively closed and the plutonium reaction is not complete. It will not spread with the flow of the atmosphere, and will form longer nuclear radiation.

Alice then said angrily: "You have snatched all the technological driving forces in this world. Can't you use methods?" Wang Long said happily: "At present, all our technologies are promoting space plans. As for combat in the underground world, we are now very scarce. Do you have any good suggestions for Alice?"

Compared with the three major elements of industry, design, materials and processing, are often easily overlooked. However, they are also extremely important. The performance coordination of various materials and the accuracy control of various conduction of parts after processing require design. It is impossible for this world to appear in strong, tough, hard, high temperature and corrosion-resistant materials. Of course, the combination of processing cannot achieve all-round effects. Therefore, it is a big problem to arrange the right-performance material parts in the right mechanical position.

Rendi didn't believe that the Knights of God were idle in the underground world. Although they had to use the standards of the Dawn Republic in industry, they definitely designed something by using the standards of the Dawn Republic.
Chapter completed!