Chapter 515: it has started……

Seeing what Lu Jun said, the girl in red also touched the round mines on the ground and said: "But the people who are buried around us who left don't know, what if they get bombed when they come back?"
After the girl in red asked this question, Ruan Bing and Ruan Xue also turned their eyes to Lu Jun, waiting for Lu Jun's answer.
"Don't worry, this is a G20 intelligent induction mine. It can distinguish between enemy and friendly. As long as the enemy enters the area they are sensing, it will explode. If our people step in, it will be fine. As for the principle, I don't understand it, anyway. That’s what the introduction said.
Lu Jun explained to the women with a stall.
Hearing what Lu Jun said, the women all showed a dazed expression, and they touched these round induction mines again.
"Okay, bury it separately. Just dig a small pit and throw it in. Be careful of concealment. If you find it out in advance, it will be troublesome." Lu Jun picked up an engineer shovel and picked up an induction mine to face the women. .
Although it is far away from the research institute, they are still safe, but the silent crusaders have searchlights and patrols, so they must be careful.
The women nodded when they heard the order of the road army, picked up the engineer shovel and induction mines to scatter and live...
In this way, in the following time, the Lu Army and Ruan Bing and others spent the time burying mines, and they soon buried their place with mines.
But in addition to this location, there were main roads and other locations waiting for the Lu Army to bury them, but the Lu Army found that the efficiency of the four of them was too low, and the main road was dangerous.
Therefore, for the sake of efficiency and safety, the Lu Army reluctantly spent five thousand dragon coins to buy three small robots specially planted in mines from the trading module.
These robots are activated by A-level spar, and there is a cubic hidden space in the body, which is similar to the space of the Army Armed Module, and can put a lot of mines inside.
There is also a high-speed rotating drill under his feet, which can instantly dig the ground and put the mine in. It takes less than a second to bury a mine. The efficiency is much higher than that of the Lu Jun and others.
The most important thing is that these robots have a bionic coating, which can be used to blend into the surrounding environment during the day and night, greatly increasing their concealment.
Looking at the small robots that are already working, Lu Jun silently prayed in his heart that these robots and induction mines that cost him nearly 10,000 dragon coins must be effective, otherwise he would lose a lot...
As time passed, more than an hour passed quickly. During this period, the robots worked smoothly. Nearly 3,000 induction mines were silently planted around the scientific research institute, and they have not been discovered.
Seeing the robots returning to the original place after completing the task, the Lu Army was very satisfied, and took all the three robots back for next use.
But Lu Jun felt a little irritable, because after so long, there was no news about Mumu and them. Could it be that something happened?
Just as the Lu Army was thinking about it, a deafening sound suddenly sounded from an unknown location in the distance, and a mushroom cloud rose up. You don't need to guess to know that a huge explosion has occurred.
However, all this did not end with the explosion, because the road army found that the lights on the entertainment area had all dimmed after three seconds, and the brightly lit scientific research institute was plunged into darkness.
"It's them! They succeeded!" Ruan Xue waved his fist heavily, with a bright smile on his face.
Lu Jun grinned and nodded when he heard Ruan Xue's words. Indeed, all this means that Mu Mu and others have destroyed the inner city's power system, and from the sound of the explosion, it is absolutely impossible to restore power in a short time. .
But before the Lu Army had time to say anything, there were bursts of explosions from the entertainment area and residential area of ​​the inner city. These explosions were very dense. It was likely that the grenade or rocket exploded.
After the explosion, you can clearly see that the originally dark entertainment area and residential area are rising up with fire, and it spread quickly, lighting the dark night sky red.
Seeing this, the Lu Army and others knew that Anan and Bei Shi had also started to act, and they had come completely in accordance with the Lu Army's plan, and everything went smoothly.
"Be careful! Someone has come out!" Ruan Bing suddenly lowered his head to remind everyone.
When everyone heard Ruan Bing’s reminder, they immediately lowered their bodies and looked at the location of the research institute. They saw a large number of people holding flashlights or gun lights running out of the originally quiet research institute. Their voices were chaotic, and they seemed to be anxious. Want to know what happened outside.
However, in the absence of communication and electricity, it is impossible for them to contact the outside in the scientific research institute. They can only look at the increasingly bright entertainment districts and residential areas in a hurry.
In the end, the person in charge of the scientific research institute couldn't stand it anymore, and couldn't help but dispatched several teams of city guards driving in off-road vehicles towards the entertainment area, wanting to find out about the situation.
However, the Lu Army laid a large number of landmines around the scientific research institute. When these off-road vehicles reached a certain position and triggered the landmines, only a burst of "boom boom..." was heard, and all the off-road vehicles rolled over. Then it exploded, and none of the personnel inside survived.
In addition, a lot of smoke and firelight rose up at the location where the mine exploded. It is estimated that this is the side effect of the mine.
Seeing this, the Lu Jun also danced his fists, expressing his inner excitement. He was too satisfied with the effect of these mines. Originally, he was worried that these mines could block the off-road vehicle, but he did not expect to blow the off-road vehicle directly. Not left, far beyond his expectation...
And the defenders of the scientific research institute who also watched all of this had a headache. Because of the smoke block, they had no idea why the off-road vehicle exploded, and they could only sound the alarm of the scientific research institute in confusion.
But after seeing the explosion, he fell into a quiet place again. The person in charge of the scientific research institute was a little angry, and once again sent a group of city guards out without giving up.
It's just that the city guards did not ride in a vehicle, but chose to walk on foot. They must see what was going on outside.
But this team of city guards just walked to the area where the off-road vehicle exploded, and another sudden loud noise, coupled with smoke and fire light, directly "dissolved" this team of city guards into the night, and none of them survived... …
Seeing this scene, the people in the research institute realized that they had been attacked, and they stood around the research institute with their weapons and stopped going out, thinking in their hearts who was brave enough to attack the research institute in the inner city. ...
"They won't come out, what should I do?" The girl in red whispered, leaning against Lu Jun.