When Dong Ku received the secret report that the Japanese plane had taken off, he frowned. Before, a large number of Japanese planes had gathered, and he had received a secret report, but the Japanese army had been holding back, and they did not hesitate to consume shells to stop the attack here, as if they were waiting.

But what are they waiting for? Waiting for a plane? There is no need to attack again when all the planes are in place, even if the attack continues, it can ensure that the follow-up planes can keep up, but the other party just waited for all the planes to arrive in place and stayed for nearly half an hour, which is a problem.

Is there a backhand?

Dong Ku looked at the position in the distance in front of him, and he couldn't think of how the other party could solve the current problem. As for the transportation of artillery, he had already obtained information from the two reconnaissance planes arriving in Harbin, and it was clear that the other side did not even have a reserved artillery passage and did not intend to let the artillery position move forward. In the distance, the Japanese army was filling trenches, leveling hills, and transporting heavy artillery, even if it arrived, it would not be today's thing.

After thinking about it for a week, he didn't understand why, but the arrow was ready, and if the Japanese army didn't jump, he would let the opponent's shells run out, once the density of the artillery fire was not enough, it was not difficult to attack the position, and he was sure that under the cover of the opponent's artillery fire, he would quickly enter the opponent's tunnel. For this reason, he has prepared a demolition team, as long as he enters the tunnel, the battle is not up to the Japanese army.

"Keep bombarding!"

Thinking about it, in the telescope, there were not many shells falling on one side of the position, and Dong Ku once again ordered to open fire to prevent the Japanese artillery from stopping.

Then another round of shelling began, followed by Japanese artillery, and within half a minute of the loud bang, the artillery fire covered the area.

The monotonous artillery battle, which lasted for several hours, was broken by the warning of the arrival of the Japanese planes, and then the anti-aircraft artillery on the Dongku position began to roar.

This time. Dong Ku had enough anti-aircraft artillery and enough shells, so he divided more than 500 anti-aircraft guns into three layers, all of which were high, medium and low, and the shells covered the entire airspace, and there were 100 anti-aircraft guns to fill the gap at any time.

There were also nearly 100 machine guns. Almost all of the machine guns of the twin cities arrived, and they were all under the camouflage net, waiting quietly.

The Japanese planes did not pause, and the moment they saw the smoke clouds floating in the distance, more than 100 planes scattered with a bang, and the formation of 55 and 5 began to circle in all directions, and the area surrounding the smoke clouds began to circle, but they did not approach.

Want to run out of my shells?

Dong Ku coldly twitched in the direction of the plane that was invisible in the distance. I snorted coldly in my heart.

"Second option!"

With Dong Ku's order, the long-range interception artillery was sharply reduced, but it was still beautiful and gave up weaving a large net, but two-thirds of the artillery had stopped firing.

The Japanese machine just saw the hope of getting in, but unexpectedly, the opponent's artillery did not stop firing, but extended the firing distance.

Before they could move, a roaring explosion sounded around these Japanese planes, followed by a dense thump that resounded through the sky.

"Not good! We got shot!! ”

"The distance of the opponent's air defense is not five thousand meters!! We were fooled!! ”

Knock knock. One plane after another was hit, and panic was shouted. The planes that lost control opened their cabins one after another, and the pilots parachuted out without hesitation.

The abrupt blow surprised the Japanese troops, and all the planes climbed high and dived. Trying to get out of the airspace.

But how could they have gotten out of a large net that had been pre-programmed, watching one plane after another lose control, one plane after another catching fire, one plane after another exploding in the air, and a cloud of smoke appearing in less than half a minute. Very few of the Japanese planes escaped, not even a third, and before they could see the target, they were thrown in the air.

The rest of the planes fled in disarray, and only after flying out of the city for several kilometers did they turn around in fear and circle again within this distance.

After turning around, they saw the smoke clouds from the huge fires burning in the distant sky, and their backs were cold.

The opponent's anti-aircraft artillery intercepted more than 8,000 meters, that is, the launch was definitely looking for death.

The situation was quickly transmitted to Command. "Suzuo Ogasawara" was not angry at the loss of the plane, but smiled slightly.

They didn't understand why the volley exploded so far, and some experts put forward the idea of delay, but it always takes time to solve it. Besides, what if you do research? Can it still prevent the other side's shells from exploding? Therefore, they need to know the limit of the opponent's shells, and it is precisely in this way that the first batch of old aircraft are all on the battlefield, in order to obtain this accurate information.

Dong Ku didn't know the other party's intentions, and if he didn't get closer, he would extend the shooting distance, so that he could still leave those planes behind. It is normal to run away from a few planes, after all, the farther the distance, the worse the coverage effect, 3,000 to 5,000 meters is the best distance, and it is also the red line distance to break through.

The fighters of the listening machine struggled to distinguish the sound of the explosion, they determined the distance of the plane, found that it was on the edge of the shell, and reported the situation.

Dong Ku hesitated when he heard the report, and ordered: "Stop intercepting all and let them in!" ”

With the order, the air used to take the clouds, and the sound of explosions disappeared.

Seeing that there was no smoke cloud, the remaining 30 or so planes did not hesitate and dispersed, still in 55 formations, separated from different altitudes, and went straight to the target direction.

It was so difficult that the Japanese top brass had realized how weak their old air defense was, so this move was to consume the opponent's artillery and destroy those positions, and the other was to collect all the data on this kind of anti-aircraft artillery. If their aircraft carriers have such air defense capabilities, will they not be invincible in naval battles?

The Japanese planes that flew in all knew their mission, so there was a radio station on every plane, and the 15-watt radio station that could not be transmitted back to the headquarters over a long distance could still be connected with the positions below.

As all the Japanese planes flew into about 5,000 meters, Dong Ku calmly ordered the cannon to be fired.

More than 500 anti-aircraft guns were fired in unison in the order, and the dense projectiles flew out in all directions, not to mention that there were built-in steel balls, and this dense artillery shell was enough for the Japanese machine to drink a pot.

Sure enough, after entering that airspace, the Japanese planes still failed to see the opponent's artillery position, and they were devastated.

"Flameout!!"

A resolute shout came from a light bomber, and in the dense thump, the engine was extinguished, and the plane was allowed to descend by inertia and fly forward.

There are also planes that make a forced breakthrough to the top, staring at the smoke cloud and starting to accelerate, and making a dive action.

They flew under artillery fire, the indispensable fuselage was already covered with bullet marks, and the holes had already pronounced their death sentences, but they still couldn't stop the fanatical them from continuing to advance.

Soon, they were lucky enough to see artillery positions, and they saw circles of anti-aircraft artillery positions.

The flight attendant in charge of the dispatch quickly clicked the button and sent the message, ignoring that the fire had spread into the cabin. The glow on his face was not a hint of fear, but a frenzy of excitement.

In less than a minute, there was not a single plane left, and even the last bomber, which had lost control and had its engine turned off, was hit by machine guns and fell at a distance of a kilometer from the anti-aircraft artillery position. So far, nearly 100 planes have all been shot down, and there are zero losses here.

Dong Ku didn't feel excited at all at this time, he vaguely felt that something was not quite right. Because, when these planes were shot down, radio waves flew out one by one and were intercepted by more than a dozen confidential personnel, but unfortunately they could not be translated. Recently, the military's password has been changed frequently, and his internal line is powerless, and the password he mastered earlier has been discarded, and in some key departmental communications, the password is changed every few days, and it seems that the other party has realized that the password may not be accurate, so it is frequently changed.

And the planes still have time to generate electricity in the process of being attacked, which is obviously not scientific, and it seems that some planes should not carry radios.

Could it be that they are here for fire reconnaissance?

Dong Ku pinched those messages and frowned. He was familiar with history before, and he had an advantage, especially in the password, which made him anticipate the enemy in advance. But now, he doesn't know anything, and it all depends on judgment.

But even if the other party knows the coordinates, what about it? What's the use of an airplane not breaking through the line of defense? Could it be shelling?

As soon as this idea came to him, he didn't think much about it, and quickly gave an order to the two reconnaissance planes parked at the temporary airport in Shuangcheng to let them take off and go to the Japanese position to check.

The two reconnaissance planes on standby in Shuangcheng quickly took off the moment the order arrived, arrived at the position in a few minutes, and then flew into the sky over the Japanese position.

There were no anti-aircraft guns or anti-aircraft machine guns on the Japanese positions, so the two reconnaissance planes could comfortably observe the ground at an altitude of 100 meters. After circling twice, the two planes completed their reconnaissance of the position.

Ten minutes later, when the Japanese plane approached again, his intelligence had been clearly obtained, and the reconnaissance plane quickly returned to the safe airspace at the moment it discovered the Japanese plane, and then flew directly back to Shuangcheng through the antiaircraft artillery position.

The opponent's cannon moved forward less than empty, and it seemed that he was too careful.

Dong Ku muttered to himself, turning his attention back to facing the Japanese plane.

There were still 100 Japanese planes flying this time, but these planes did not come close to the range of the anti-aircraft guns, and they kept circling around, but they did not get close.

When Dong Ku learned of this situation, he didn't care at all, anyway, it was to consume the other party's shells, so don't get close to a few words to see the excitement on the periphery.

This is no less than fighting a big battle, one or two hundred artillery pieces bombarded for a day, according to Dong Ku's understanding of the Japanese army's armaments at this time, he knew that a day's consumption would already make the Japanese army break their muscles and bones, after all, it was almost non-stop bombardment.

At this time, Dong Ku was absolutely sure that the Japanese had to pounce frantically, because this kind of bombardment had been going on for almost a day, the opponent's shells were tight, and the bombardment here did not stop for a moment, he did not believe that the Japanese could really sit still, watching him completely destroy the position, and their own shells could not continue. (To be continued......)