The reason why Wu Fei had to have an explosive pack was because he had witnessed the power of the explosive pack with his own eyes. Now Ermashan is facing a situation that only by surprise and taking a wrong approach can he win a glimmer of hope.

After Brother Shan and his friends transported the explosive packs back, they buried five of them under the huge rock in the middle of the road as he asked. He did not ask to blow up the huge rock. As long as the explosion could push the rock and roll down along the mountain road or hillside, it would be an unexpected "super gift" to the Japanese and puppet troops. Of course, this was just Wu Fei's imagination. He was not sure what would happen then.

Part of the remaining explosive pack was buried under the pass, and there were some rocks that had not been blown down. He also didn't want to blow down the remaining rocks, but they could always stir up some stones. If they detonate when the Japanese and puppet troops were concentrated through, even if they didn't kill a large piece of stones, the splashed stones would be enough for them to drink a big pot.

After these two places were buried, there were still four left. Wu Fei thought about burying them in the necessary place to impact the rock pile position, but he did not expect Li Sanjin to give him a huge surprise.

"Wu Fei, I think it's not okay to bury these four explosives in front of the position. It's very likely to hurt his own people." Li Sanjin did not resent Wu Fei arranged for him to guard the first line of defense, but instead gave a better proposal: "We can find some things in iron cans and iron bottles, divide the explosives into landmines. In this way, the burial range will be large and will not cause harm to our own people."

"Landmine?" This was the first time Wu Feizhen heard this term.

"Yes, these four explosive packs have about twenty kilograms of explosives. When we pack them, we can make about forty mines and arrange them into a minefield. Although the power of the explosion is not as powerful as that of the explosive pack, the range of killing caused is far better than that of the explosive pack!" Li Sanjin explained. He didn't know that Wu Fei didn't know what the mine was.

"Brother Li, wait a moment. I haven't figured out what landmines are. Is it the same as the Japanese grenade?" Wu Fei asked seriously, but did not blush because of his ignorance.

"I'll make one for you." Li Sanjin looked at Wu Fei, and after confirming that he was not joking with him, he looked around for containers, but how could he find anything good at the pass? He was about to go up to search for it, but suddenly he saw a brother who was drinking water with a kettle. Without saying a word, he grabbed his kettle, poured dry the water in the kettle, pulled off a piece of cloth from his clothes, wiped the kettle, and confirmed that it was dry. Then he opened a dynamite bag, carefully filled the kettle with gunpowder, and after compacting it, he inserted a small piece of reed tube, pulled out the fuse, sealed the bottle mouth with pulp mud, and handed it to Wu Fei, saying, "This is a simple landmine. We don't have the conditions to trigger the mine now, so we can only use the most primitive method." He pointed to the fuse that stretched out the bottle mouth and said, "Ignite the fuse, just like lighting the explosive bag."

"Oh!" After touching the local mine with his own hands, Wu Fei suddenly realized. The gunpowder used for this thunder was about one pound, which means that four explosive packs could be separated and made into about twenty mines converted into water bottles. According to what Li Sanjin said just now, the local mine could be reduced, which means that it could be made into about forty mines. Wu Fei could imagine what a sudden explosion would happen under his feet when the Japanese puppet army attacked.

But can Li Sanjin's thick mine really explode? Wu Fei was still having a big question mark in his mind, and the most important point is that it is the most fatal disadvantage of this local mine, that is, it must be manually ignited. In the rain of bullets, who can ensure that he can ignite the fuse? Even if Uncle Guo is resurrected, he may not be able to make a promise.

"Wu Fei, why? Do you think this landmine is not good?" Li Sanjin was happy when he saw him and then immediately frowned again, and then asked.

"Okay, the mines are very good." Wu Fei blurted out, but then hesitated: "But, but...who will ignite the fire?"

"Everyone can ignite the fire." It was not Li Sanjin who made a sound, but Santang. He came over at some point. He saw the crude earth thunder in Wu Fei's hand, and took it directly. After looking at it, he said, "It's not bad, but it's just a shortage of lethality. Li Sanjin, you don't add any other ingredients except gunpowder in this pot."

"San Master, no, I'm just going to let Brother Wu Fei see it. He has never seen a landmine." Li Sanjin responded respectfully to the words of the third leader. It's been a long time since he took off his military uniform, but these veterans from Ermashan still regard a few leaders as their superiors.

"Add ingredients? What ingredients are added? Third brother, I didn't understand what you said, and you haven't told me how to light the fire." Wu Fei is smart, but no matter how smart he is, he can't express his opinions on things he has never been in contact with or seen before, and he can only learn humbly.

"Sanjin, tell him." The third leader was rarely able to gain face in front of Wu Fei, and he actually floated up.

"That's right, Wu Fei, we used to make such earth thunders on the battlefield, and we would add some iron nails, iron sheets, iron beads and other things. When the thunder explodes, even if the enemy is not killed, these iron objects that fly out can kill a lot. As for ignition! It's very simple. As long as we have enough fuses, we can detonate these earth thunders even a hundred meters away."

After hearing Li Sanjin say this, Wu Fei immediately understood that what he said was to add some hard objects that can increase the killing area. In fact, it is similar to burying explosives under the rock. The ignition method is also the simplest method. It is not that he did not expect it, but that he complicates simple things himself.

"Brother San, you have a good idea. Brother Li, you start making this thing right away. I can't wait to see the effect of the mine explosion." Speaking of this, Wu Fei changed his mind and asked his most worried question: "These thunders cannot be blown up, right?"

"Hahaha, Li Sanjin, did you hear it? Wu Fei is suspicious of you, a sloppy guy." The Sandang laughed and attracted a lot of attention.

"Brother Wu Fei, are you hitting me Li Sanjin in the face. Just pull me and ask me, have you ever made by Li Sanjin? "Li Sanjin has never made any noise?" Li Sanjin was a little unhappy by the smile of the third leader. He wanted to argue with this guy who had even seen landmines, but suddenly he saw Xiaole carrying a bowl from the mountain road and resisted his displeasure.
Chapter completed!