Next, Zhang Kun bypassed the team that was working on minesweeping, went around a big circle, and then continued to move forward.

After walking carefully for about ten minutes, Lei Yu raised his hand with a serious look on his face: "Be careful, we are going to enter the minefield that has not been cleared. Slow down and follow me."

Zhang Kun took a deep breath and nodded.

He is about to officially enter the minefield, and even he dare not be careless. After all, he is just a master of martial arts, not a Vajra indestructible. Faced with hot weapons, he is not much different from an ordinary person.

Well, even if he can dodge two bullets occasionally, in front of the mine, the explosion that sounds and covers without dead corners will be useless even if his body is fast.

It will still be wherever it should be.

Therefore, for the sake of his own life, Zhang Kun must not be careless at all at this time.

Nodded to Lei Yu, and then saw Lei Yu slowly escape into the ground. After more than ten seconds, half of the body of Lei Yu's body appeared on the ground and waved to Zhang Kun: "It's safe here."

Zhang Kun then took two steps forward and stood at the place where the thunderstorm was rising at this time.

Then the thunderstorm continued to explore the way forward.

In this way, the thunderstorm slowly determined the safe route, while Zhang Kun slowly followed step by step, making the mark when he returned the same way.

More than an hour later, the two of them had only traveled less than a kilometer.

At this time, Zhang Kun stood on a small hill, with thunder and rain floating beside him, and then Yaoyao pointed to the distance.

"It's almost done here. Have you seen the woods in front?"

Zhang Kun nodded, and in the direction pointed by the thunderstorm, a subtropical jungle slowly began to appear. The jungle was not very big, and Zhang Kun could even vaguely see the other end of the jungle.

In the jungle, the trees are not lush and leafy, which is completely incomparable to the real tropical rainforest of Johannesburg that Zhang Kun once visited. There are not too thick vegetation, and most of them are trunks thicker than their arms.

"There is a small jungle behind it, which is the goal of our trip." Lei Yu whispered.

"Even if the minefields on our Sino-Vietnam border are famous all over the world, they are the most complex minefields in the world. Not only are the mines dense, but they also have many types. There are dozens of types of anti-tank rays, anti-infantry rays, thunderbolt rays, tripping rays, jumping rays, tricks, etc.."

"And in addition to Chinese-style mines and Vietnamese mines, there are also Soviet-style American mines in the Sino-Vietnam counterattack self-defense war," he said.

"In addition, it has been decades since the end of the Sino-Vietnam War. Over the years, a number of reasons such as high temperatures, surface water erosion, heavy rains, floods, etc. may cause changes in the location of landmines and explosives, either exposed roadsides, buried deep in soil, hidden in rock cracks, or hidden in streams. This makes it completely impossible for us to clear mines based on reverse reasoning."

"But these are not the most difficult ones. What really poses the biggest threat to our mine clearance work is the terrain factor."

"You have also seen that when we clear mines in the plain, there are various auxiliary robots. With the help of those robots, the casualties of front-line demining soldiers have been minimized as much as possible, and even infinitely close to zero. Thanks to the scientific researchers."

"However, auxiliary robots are not omnipotent. In some places with slightly more complex terrain, those robots are completely unable to work. For example, wreckers cannot work at slopes of more than 40 degrees."

"What's more, many places behind can be called high mountains, steep slopes and dense forests, with a steep terrain. In some places, there are even cliffs under your feet. In that kind of place, even the exquisite and flexible minesweeping robots are completely difficult to move forward."

"In such a situation, we can only be our minesweeping warriors."

"As mentioned earlier, for various reasons, landmines and explosives may be hidden anywhere, perhaps in the corners of tree roots, cracks of rocks, and in the stream. If you are not careful, it may be an outbreak."

"As far as I know, most of the casualties in minesweeping missions occur in this jungle terrain."

"So, we don't have to worry about the mines on plain terrain. What we have to do is to mark the locations of all mines in these high-risk terrain so that my comrades can minimize accidental casualties as much as possible."

Zhang Kun nodded in a clear way and signaled to understand.

"Then, when I had just died but had not met Mr. Qi, I had traveled to all the mines under the two jungles. There were about 3,800 mines that we needed to mark."

"So much?" Zhang Kun looked at Lei Yu and frowned slightly.

"How much?" Lei Yu smiled, then shook his head: "This is not too much."

"It has been nine months since the beginning of this mine-sweeping mission, and nearly 80% of the mine-sweeping areas have been ruled out, and more than 20% of the areas that have not been ruled out. The remaining two jungle high-risk areas account for less than two% of the total area."

"If I asked you to come earlier and asked you to mark all the mines in high-risk minefields, I'm afraid that not even 30,000 will not be able to stop it."

"You must know that this mine-sweeping mission has eliminated more than 200,000 landmines, and there are more than 100,000 other explosives, 3,800, and not many."

Lei Yu smiled and explained, then continued: "Next we need to prepare some marking tools, and then some daily necessities."

"We may have to prepare four thousand marking tools just in case. Then, when we officially enter the jungle, we cannot travel back and forth every day, so we may have to spend a few days in the wild and prepare some wild survival supplies."

"If we want to not attract the attention of our comrades, we need to enter the innermost jungle first, mark the mines from the innermost, and then push them out little by little."

"And in order to conceal, we also need to perform the strategy of night jobs and daytime rest as much as possible."

"Then at the rate at which we mark a mine per minute, I estimated that it might take six to seven days. You need to prepare the various supplies we need at this time."

"Okay, that's probably all. Do you have any questions?"

Zhang Kun looked at the jungle far away, pondered for a long time, then nodded: "Just do it."

Zhang Kun agreed with the plan, and then the two returned along the way they came.
Chapter completed!