Liu Lang gave a lot of lessons on anti-slope tactics to the big guys in the cave, and also talked about modern fortification construction by the way.

Not to mention tactical command, the current fortification construction lesson in the Chinese military academy is really not very good, at least it is not as good as the current Japanese, such as the ring fortifications that I like to build the most, there is no problem with retaining heavy machine guns, but the problem is that the Japanese have curved guns and direct-aim guns, and that kind of fortification is simply a grave of death, not to mention artillery shells, even if the grenade of the grenade is accurate, the heavy machine gun crew in the fortification will have to finish half of it.

The trenches on the mountain are more to save effort, if it weren't for Liu Lang's reminder, it would simply be built into a semi-arc, which means that the Japanese army now has no curve artillery, if there is, fall one into the trench, dozens of meters long trenches will have to become a death alley, along the trench crazy cathartic energy waves can be located in it too late to hide in the anti-artillery hole soldiers up several meters high.

If there is an airplane, come and get a bombshell, it will have to be finished. In the future battle of Songhu, in which China and Japan invested millions of troops, it was not uncommon for a large-caliber artillery shell or an aerial bomb to completely wipe out an infantry platoon.

"Buzz!" The dull voice came into Liu Lang's cochlea, which made Liu Lang's face change suddenly, not only did he want to hit his "crow's mouth", but he was really afraid of something.

The Japanese army actually dispatched army aviation for their thousands of troops. Moreover, listening to the roar of aircraft engines that can be heard from afar, there are definitely a lot of planes.

"All positions, leave observation posts, observation posts enter the anti-artillery hole, and everyone else retreats into the cave!" Liu Lang, who drilled out of the cave, ordered instead of Wang Hechun, who was also in a daze looking at the distance.

With the frenzied sound of the iron whistle, the soldiers who were desperately digging quickly converged in the direction of the cave through the communication trench with their guns.

Six black dots had already appeared in the sky, and the roar was getting louder and louder, making people's hearts tremble with this terrible roar.

Compared with tanks, airplanes flying at an altitude of 1,000 meters are undoubtedly the most hated but helpless things of the officers and men of the 29th Army.

No matter how arrogant the tank is, if you don't spare your life, you can still kill it, and the wreckage of the four 89 tanks on the position now can already prove it.

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But planes, what to hit? Not to mention rifles, even light machine guns and heavy machine guns can't do anything with them, you can only stare at those "iron birds" in the sky with impunity to drop bombs and shoot with machine guns.

Even if they drop the altitude to a height where you can see the pilot's face, up to a speed of 100 meters per second, you can make your machine gun unable to put it in the crosshairs, unless there are anti-aircraft artillery, but unfortunately that thing, not to mention that the 29th Army does not have it, looking at the current millions of Chinese troops, there are those treasures, how many troops are there?

This is an unsolvable weapon of mass destruction, for the Chinese soldiers at this time.

It's helpless, but it's a reality.

Liu Lang is also helpless, No. 1 Heights are better here, there is a cave to hide, No. 2 and No. 3 Heights do not have such natural tunnels. However, fortunately, they had more than an hour more time than the 1st Battalion to build a position, and Liu Lang, who had already taken precautions, ordered the two positions not only to dig deep trenches, but also to dig out individual anti-artillery holes no matter how tired they were, and to use shrubs to camouflage the positions to a certain extent.

It was not so easy for the Japanese pilots to discover the position from a height of 1,000 meters, and if they had the ability, they would descend to the altitude.

Moreover, what made Liu Lang feel a little relieved was that the Japanese planes at this time were not equipped with radios, and the Japanese infantry on the ground could not give guidance to the Japanese pilots in the sky at all.

All they can do is run around in a conspicuous place in a yellow military uniform, and tell the plane in the sky that I am my own person, and you don't want to blow up the wrong one.

Speaking of the technology of installing radios on airplanes, it is not that the Japanese army does not have them, and the Japanese who are committed to learning from the Western world will install this technology on the main models of the West but not themselves? That's not the personality they're going to imitate to the end.

They installed it, but found that the biggest use of hundreds of kilograms of radio equipment is to allow pilots to chat and fart during the flight, which not only costs fuel but also affects the maneuverability of the aircraft. Wouldn't it be good to save some fuel for the Empire? The Empire is short of that thing!

As a result, the main fighters of the Japanese army at this time returned to fuel-saving mode. As for air communication, it's simple! It's not okay to shout at the top of your voice, so shake your wings! What does it mean to shake once, what does it mean to shake twice, anyway, there is nothing that can't be solved by shaking the wings, the big deal is to shake a few more times, and the pilot's gesture in the air is also one of the means of communication.

Liu Lang even suspected that the future special forces would be silent and rely on gestures to make a tactical arrangement, all of which they learned from the pilots of this period.

The roar of the aircraft engine is getting louder and louder, and the black dot is gradually becoming clearer and clearer, and at the moment when it is about to fly over the No. 1 position, the huge explosion sound like a landslide and tsunami has been transmitted from the top of the mountain, and all of a sudden, the inside of the cave is shaking for a while, and an old oil soldier who is smoking against the stone wall is not noticed, the cigarette in his mouth shakes violently, and the burning cigarette butt falls between the crotch of his pants, and the bluffing old oilman is busy slapping the crotch of his pants.

In normal times, the surrounding soldiers would not be able to lean forward and backward with laughter, but at this moment, no one laughed, and most of them turned pale.

The cave is still dozens of meters away from the top of the mountain, and it can be shaken like this, if this falls on the ground, what will it look like?

A 500-pound bomb turned out to be a 500-pound bomb!

Liu Lang's eyes also flashed with surprise, the Japanese army was really willing to pay for it this time.

The aftermath of the explosion of the first bomb has not yet dissipated, and the second and third explosions have struck one after another.

All of them were 500-pound bombs, used to blow through the big guys used in the concrete permanent fortifications, some fell on the top of the mountain, some fell on the hillside, it was really the ground shaking, and the soldiers in the cave who didn't care too much were accidentally shaken by the sudden shock.

"Dog's day, the little devil hates Lao Tzu's 1st battalion! The bombs were all dropped on the heads of the boys. Wang Hechun patted the loess falling on his head and complained to Liu Lang angrily.

"Haha! It is estimated that they know that Camp Commander Wang has a cave here, and they want to see if it can be blown up! Liu Lang said with a smile.

Don't look at the power of the four aerial bombs, but the defenders are basically in the caves, and the explosion point is also out of the position, basically no casualties have been caused.

Liu Lang and Wang Hechun in the position were quite relaxed, but the two generals who were alarmed by the roar of the plane four kilometers away were much more nervous than them, and they both picked up the binoculars with solemn eyes, and they could clearly see the black smoke rising one after another on the distant mountain in the lens.

"The Japanese people of dog days are really willing to pay for it! Lao Tzu is just such a little person, and it is worth them to make such a big move? Six bombers were dispatched in one go. Li Jingtian complained hatefully.

"Isn't it Liu Lang who hit Suzuki Mitsu's descendants? Not to mention that the two artillery brigades were destroyed, and they also put out carriages and horses to fight hard with him, and whoever it is, it is estimated that they will have to go crazy! Liu Ruming said with a bitter face. However, this is also the last trick of the little devil, if Liu Lang and Wang Hechun still have a way to deal with it, then I believe that the gas alone can make the old devil Suzuki Mitsu half angry. ”

"Send me a telegram to Liu Lang and tell him that he can't fight as hard as a tank with an airplane, and if he dodges this wave of bombing, it is a victory, and if he needs any help, all the officers and soldiers of the 2nd Division will do their best, even if it is a fight with the little devils on the opposite side!" After giving the order, the lieutenant general took off his military hat and smashed it on the edge of the trench: "Grandma, since the little devil is playing so big, then Liu Ruming doesn't mind playing with him a little bigger." ”。

Lee Kyung-tian。。。。。。

Liu Shizuo, this is not lightly stimulated by the devil's plane!