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The satellite photos did not clearly capture the Japanese cannons. Not only was the area where the target was covered by dense trees, but a large number of air defense weapons were deployed. The Kwantung Army Flight Regiment also fought desperately along the Great Wall, and would never allow reconnaissance planes and fighter planes to cross over easily. There were only those big guys flying at a height of 10,000 meters. The Japanese army had no good idea for the time being - their planes ran to this altitude, and the pilots were frozen to death soon!

But at the same time, there is no clear photo taken at such a height. The reason why we can find it is because the high-temperature flames and transpiration smoke emitted by the muzzle when the heavy artillery was fired was impossible to avoid. Combined with the ballistic calculated by the shell landing point, it is not difficult to find them--this is only for Zhu Bin.

In any case, as long as the goal is clear, it is only a matter of time to kill it. Zhu Bin is never worried about this. The cross-age weapons mastered in his army are effortless to deal with such primitive guys who are not even perfect in modern war theory!

It is only a hundred kilometers away from Peking to the Great Wall. For fighters and bombers, it is only ten minutes away. Before the Japanese heavy artillery that was slowly bombing was completely warmed up, the howling war eagles broke through their high-altitude interception line, crossed the Great Wall, and headed straight for the target!

There are dense forests everywhere, deep in Wuling Mountain, under several steep cliffs with a wall of thousands of feet high, on flat heavy artillery positions, hundreds of Japanese artillery soldiers are busy working!

The heavy cannon base and retreat track that were deeply chiseled into the mountain for dozens of meters were firmly nailed to the ground. The steel cannon seat, half a meter wide, stretched around like an octopus, covering an area of ​​just enough to the size of a basketball court!

The thick body tube, which was 12823mm long, was flattened, and the tail of more than one person was sinking and aimed at the track behind. The four soldiers were shirtless in the cold sky, sweating profusely and used a cart to push the cannon shell weighing 165 kilograms taller than them out of the cave behind. With the help of mechanical power, they "bang" into the cannon bore, put the launching medicine, closed the tail, and then quickly shook it, adjust the height and orientation. Redirect and wait for the order!

The whole process takes two to three minutes to complete. After all, everyone put their thick ear protection and retreated to a place more than ten meters away from the cannon. They stared nervously and excitedly at the tiny gun that penetrated straight into the sky, waiting for the spectacular scene where the dazzling light rose. Arrived again!

"Preparation--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

"Buzz!" As everyone's chest tightness and shortness of breath roared, the shell flashed at an initial speed of 1050m per second, crossing the continuous low hills a few miles ahead, rushing towards the distant sky filled by gunpowder!

Before the smoke and dust had dissipated, the Japanese artillery all crawled out of the bunker. They took off their helmets and shouted "Full game! Full game!", cheered for a while, quickly put into preparation work, and repeated the cycle!

The seemingly tight air defense line was immediately broken with the advantage of the "Flying Shark". Dozens of fighters danced and fought desperately over the mountains and rivers with ups and downs. Every now and then they could see a dazzling fireball burst out in the sky, and then fell down sparsely. No need to ask. It must be the Japanese Type 97 fighter!

A squadron "pergers" who successfully broke through easily crossed the Great Wall, turned a corner at an altitude of 3,000 meters, and spread towards the valley where smoke and dust were vaguely visible below, and rushed down!

The clouds retreated, and the cover formed by smoke and dust was quickly left behind. Under the rising sun, the mountains reflecting the bright green light of the eyes looked particularly charming. The crystal stream dotted between the gullies looked like a jade belt lingeringly flowing, which was extremely pleasing to the eye.

However, a group of bloodthirsty iron birds did not have the pleasure of enjoying this rare beauty. Their sharp eyes were staring at the increasingly large and busy figures of Japanese soldiers who were squirming. They plunged their heads down. Seeing the peaks more than a thousand meters high swept through not far away, the sudden storm of the fuselage trembled violently, and the solid alloy keel also moaned "squeaking", but they could not let the pilot with a grin on his face show any nervousness!

"It's almost done!" Several "permanent falcons" all shocked their bodies, gently shaking off the 250-kilogram bombs under the two wings. The suddenly weight-lossed fuselage suddenly floated up. They pulled the nose up with the flow, and whizzed past the top of a hill that was hundreds of meters high. Before hitting another mountain that was rising up in the ground, he suddenly pulled it up, letting the engine burst into heart-wrenching screams. At the same time, the strange screams in their mouths were clamoring on the radio!

"Boom!"

The huge explosion vibrated the mountains, rivers and valleys, and the dazzling fireballs rose violently toward a height of one or two hundred meters. The heat waves rolled and swept the ground in hundreds of meters without any grass growing. The dive bomber, who was confident that he would hit the attack, shook his wings and swayed away. Another wave followed immediately after the fireworks converged down and rushed down within a minute, dropped the bomb again, and gave the gun a replenishment!

The one in front of him looked at this and shouted: "It's a waste of time! The man has never missed it. Let's wait and see, the Japanese are sure to die!"

Unexpectedly, there was a gloating cry from behind: "Is my cowhide broken? Look back and take a look, the Japanese cannons are still firing! Your bombs are thrown away, and I still have to see you!"

Another earth-shaking explosion sounded like thunder. The second wave of bombers shook and flashed by. This time, countless anti-aircraft fire points suddenly appeared in the silent valley. Heavy machine guns, machine guns, and even anti-aircraft guns fired one after another. The 37mm anti-aircraft guns with extremely high firing rates even rarely exploded. The two bombers were caught off guard, and their belly was broken. "Ding Ding Dangdang" flashed by Mars, and several shocking cracks suddenly opened, scaring a group of kids so much that they increased their horsepower and ran around the bush toward the sky!

"**His uncle! How many air defense weapons did the Japanese have arranged here? Why are there seven or eight times more than before? When did you become so rich!"

The pilots who suffered losses screamed and cursed loudly while dodging the rain of bullets flying from front to back and left to side! After several years on the northern battlefield, they saw such a fierce firepower net attack!

"We don't know how much, but we definitely can't rush down any further, otherwise we will all become live targets! If you get the ball, ask the guys above what to do!"

The bomber rushed to the sky unwillingly, hovering back and forth like a greedy vulture, continuing to wait for possible opportunities to pounce on it again and start killing.

After the second fireworks rose, countless Japanese figures appeared in the valley cleared by the bombshell, and there was no sign of heavy losses at all. Even a few minutes later, a few more balls of fire suddenly flashed--their cannons were still firing!

Not to mention the group of people in front, Zhu Bin couldn't help but jump from the command center: "How is that possible! If such a big bomb is dropped, even if it is a battleship structure, it will be broken into pieces!"

The loading of 250 kilograms of heavy aircraft bombs costs at least 70 or 80 kilograms, which is larger than the Japanese 240mm heavy artillery. If it is thrown into a small village, it can be swept directly, and the explosion range is more than the size of a football field! If it falls into the canyon, it can make the people inside die!

Soon, a report from high-altitude reconnaissance aircraft and satellites solved his questions. The Japanese heavy artillery positions were probably deployed in the mountains! When the bombers came, they pulled them in and avoided them, and continued to come out after the explosion. What was most annoying was that even when they were fired, the entire cannon was sunken in the position, and it was extremely difficult to dive bombing!

Not only the cannon positions, but also the air defense weapons are also very hidden. There are dense trees and vegetation above the head, and they may also be hidden in caves. After fighting, they will run away. Bombing at high altitude is like casting nets all over the sky and bombing at low altitude---there are too many and too dense, so they are delivering vegetables!

Zhu Bin couldn't help but feel ache: "His uncle is a leg! The Japanese are really good at learning! Isn't this trick a replica of our Dazhushan defense system? Learn and sell it now!"

Five years ago, he deployed a similar defense system on the front lines of Dazhu Mountain and Lingshan Bay. The shore defense turrets trapped in the mountains and the air defense weapons hidden in the caves complement each other, and wiped out hundreds of Japanese fighter jets. This time, he tasted the pain himself!

Strategy, such as Jiang Bai, was also quite tricky when facing such a formation. He frowned and pondered: "The Japanese army is not only learning from us. More than thirty years ago, they fought with the Russian army at Lushunkou, and they also faced similar defense lines. Now their cannon arrangements are very similar. Hidden behind a small hill, bombing with a large trajectory, it is highly concealed, easy to defend and difficult to attack. Unless a large number of ground troops attack strongly, it may be difficult to achieve just a moment of force!"

The mountains are too dense, and high-speed fighters can easily be killed when they move inside, and dive bombers cannot be at full speed. If they fly too low, they will be attacked violently. Zhu Bin doesn't want to bear the losses. Helicopters... don't consider this. Before eliminating air defense weapons, they will seek death when they go out.

Could it be that the Japanese will continue to be rampant? If their heavy artillery positions are all deployed in this way and breaking through the Great Wall's defense line, wouldn't it become a farce?

"You can't let them be too arrogant!" Zhu Bin gritted his teeth and made up his mind, "I can't say that I have to use a big killing weapon first!"

The fastest update, please.

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Chapter completed!