When the other mutants saw the huge submarine breaking through the ground, their spirits instantly perked up.

As soon as the huge black submarine burst out of the ground and came to a stop, the wide hatch on the side of the submarine quickly opened.

Then a group of heavily armed army special forces rushed out of the submarine, led by a dark-skinned, tall middle-aged commander who had just rushed off the submarine, and shouted in plain language:

"Comrade Yang Yi, I am Wang Jun of the No. 1 Special Company of the Chinese Army, my department was ordered to cover you and retreat, now is the period when the enemy's fire is weak, please quickly move closer to our boat and prepare to evacuate!"

"Thanks to the People's Liberation Army, we will immediately move closer to the submarine." As soon as Lian Chang Wang's voice fell, Yang Yi immediately responded. And beckoned those who were firing at the pentagonal ship and the ground fighting to move closer to the underground submarine.

"Thank you to the Chinese People's Liberation Army!" The other mutants also thanked loudly, and after hearing Yang Yi's greeting, they quickly approached the underground submarine.

Yang Yi did not hesitate, his figure suddenly jumped into the air, turned into a blue figure and flew towards Han Weiwei's side, and fell in a flash, and came to Han Weiwei, who was opening the energy weapon on his arm to launch the energy light pillar to the pentagonal spaceship, and said softly:

"Vivi, let's go!"

"Let's go, Yang Yi!"

Han Weiwei, who was launching a pillar of energy light at the pentagonal spaceship, agreed, and Jiao Xiao's body also turned into a white figure and soared into the air, following Yang Yi's figure towards the underground submarine.

In an instant, the two of them turned into two blue and white figures and galloped towards the side of the huge submarine, only to fall near the side hatch with only two or three shaking.

The other mutants did not hesitate, they flew towards the submarine from a distance, and in an instant, mutants of different shapes suddenly fell next to the black submarine in succession, and entered the submarine while organizing air defense.

The remaining 345 mutants were not slow, and in just thirty seconds, they all evacuated to the inside of the submarine.

At the same time as the side hatch of the submarine opened, the roof of the submarine suddenly and slowly opened, revealing a take-off and landing platform with more than a dozen parking stands.

After seeing that all the mutants had entered the submarine, the fighters of the five Aerospace Forces also suddenly broke away from the engagement, flew towards the take-off and landing platform on the top of the huge underground submarine, and landed vertically on the take-off and landing platform one after another.

In less than half a minute, all five surviving fighters landed on the submarine take-off and landing platform.

The next moment, with a rumbling sound, the submarine began to close the top landing platform and side hatches while descending.

At the same time as the army's underground ships appeared, the four remaining Maltese pentagonal ships also discovered the huge submarine and kept firing blue energy pillars of light, but they were afraid that the mutants would fail to hit the submarine with the same weapon shot.

Seeing that the submarine had dived rapidly, the pentagonal spacecraft began to frantically launch blue energy beams of light and throw dozens of energy bombs.

However, the Maltese spacecraft was still a step slower, and the countless thick blue energy pillars did not hit the submarine that had already dived below the surface, and all of them hit the deep pit left by the submarine's dive, instantly vaporizing the energy of the hit, but it failed to hurt the submarine in the slightest.

At the same time that the underground submarine picked up Yang Yi and the remaining planes of the Aerospace Forces from the battlefield of the abandoned military base on the 13th, the Chinese army's feint attack on the Maltese air and ground forces also ceased operations.

Almost all of the formed units of the armed forces suddenly disappeared and were withdrawn to the wartime military bases that were hidden deep underground in the theaters.

Obviously, the large-scale military operations earlier were all aimed at containing the power of the Maltese to encircle and suppress the mutants, and since the purpose of evacating the mutants has been achieved, there is no need to continue to fight the Maltese on the frontal battlefield.

Since the frontal battlefield is not the opponent of the Maltese, it is obviously safe for the main force to avoid encountering the Maltese head-on for the time being, and to preserve its strength.

A few minutes later, as the mutants successfully evacuated from the underground submarine, due to the inability to lock the accurate location of the submarine underground, a large number of Marl pentagonal spaceships and ground heavy armored troops that arrived aimlessly launched energy beams and dropped a large number of bombs at the submarine's diving place, and after searching for a long time without results, they also evacuated the valley.

The valley seemed to be quiet again, except for the traces of the battle just now.

Three hundred kilometers above the earth, in the command center of the Maltese pentagon mothership, the commander of the Clone Five looked at the holographic video of the appearance of the underground submarine, and his ugly face showed a trace of doubt.

In his opinion, the army system of the earth is already complete, and it is not at all possible to form organized resistance.

But what happened just now is very real, a strange submarine of human beings, actually out of the geography. He also succeeded in picking up the mutants who had already been surrounded, which he did not allow to happen.

The scene in front of him was the first time he felt puzzled and uneasy since he led the fleet expedition to the solar system, obviously in the constellation Centauri, because of almost all the energy focused on the creation of starships, the weapon of underground submarines was the shortcoming of the Maltese development.

Although the Centauri Blue Star has many technical fields, the earth side is undoubtedly ahead in the technology of submarines, and it is because of the sudden appearance of underground submarines that the plan to encircle and annihilate the mutants has been disrupted, so that the survival that should have been eliminated by them will survive.

At a depth of 500 meters below the ground, the submarine is rumbling forward, and the head laser knife is running at high speed, cutting the mud, rock, and metal in front of it, opening up the passage for the submarine to sail.

In the middle cabin of the submarine, Yang Yi looked at the wide cabin, and couldn't help but secretly marvel in his heart, and at the same time, he also sighed at the rapid technological progress of the motherland. If it weren't for this huge submarine, under the combined air-ground strike of the Maltese, not only would they all be wiped out, but the fighters of the Aerospace Forces would probably not be spared.

This submarine can sail underground and come and go freely, so it seems that although the current battlefield form is not optimistic, it is not exactly as it seems on the surface, and the earth side has no resistance.

At least in Yang Yi's view, the military still has a hidden weapon such as underground submarines, although the battle with the Maltese on the ground is at a disadvantage, but if it can preserve its strength, it is not impossible to fight a protracted war with the Maltese for a long time.

Thinking of this, Yang Yi's confidence has increased a lot.

The other mutants were also curious about this submarine, and they were all talking about something, and from their admiring eyes, they obviously had never heard of this kind of submarine that could sail at high speed underground, after all, the underground environment was far more complex than the bottom of the sea, and it was more hidden.

If we talk about the technical difficulty of realizing underground navigation, the submarines in the sea are not at all an order of magnitude compared with underground submarines.