The explosion shook the headquarters more than a dozen kilometers away, and the cups on the table danced in the fluctuations of the vibration, no different from an earthquake.

Dong Ku held on to the table, his legs firmly nailed to the ground, and he felt a burst of cramping in his heart. He knew that twenty tanks, three Spitfire tanks, and twenty armed transport planes were unlikely to survive such an explosion.

In the command center, everyone was stunned, they were all soldiers, and they could still resist this kind of shaking without panicking, but it could affect the command headquarters more than ten kilometers away, which showed that the power of the explosion was quite huge.

How can it be so powerful?

Everybody was a little confused. Martyrdom, everyone has taken it into account, I believe that in a tank 100 meters away, in a tank with an anti-shock system, the casualties will not be too large, especially hiding behind the bunker wall, the shock wave does not directly act on the tank, and the damage to the driver should be avoided.

But with such a violent explosion, not to mention that the shock wave directly acted on the tank, even if it was shocked, it would also kill the people inside.

In the shaking, Dong Ku didn't care about him, and shouted: "Inform all the tanks that are approaching to retreat and leave the position to be attacked!" Heal the wounded! Give up the offense!! Fast!!! ”

Qu Jungang and others did not hesitate, shouting in the headsets, stop the attack, retreat on all fronts, and search and rescue the wounded soldiers.

They all knew that if they went up and burned the cannon like this, they would injure 1,000 enemies and lose 800 of themselves. Don't worry about surviving the tanks and Spitfires that go up. Although this can be exchanged for the maximum benefit at the minimum cost, but at this time it is not that there is no way, you need to use the death task to clean up there, if you can't find a way, then there is only this way to sacrifice small units and ensure that large units are not damaged.

The violent explosion was also felt by tanks elsewhere. Those who were far away were lucky enough not to have time to blow up the openings to breathe fire, and they received orders.

But not all tanks were so lucky, when the order was given, there were still two points, one was in Qiqihar, Tailai's Liu Canghao Division. One was in the Yu Lei department in Buyeo, their speed was almost the same as Qu Jungang's here, and the same big explosion occurred in a few seconds, which was completely beyond their expectations.

Liu Canghao's tank unit was a Soviet-made tank, and the Spitfire was seconded, and in the violent explosion, 15 tanks and two Spitfires were all killed.

It's Yu Lei. Yu Lei was originally a bold and careful person, when he received the order for the tank to evacuate 100 meters away before the fire and look for concealment, with the information obtained by the helicopter, he quickly selected a bunker 200 meters away from the fortress gun as a concealment, so the 20 tanks and helicopters were not damaged due to the distance of evasion. Only the Spitfire driver, who was on duty at the least, was stunned behind a bunker 100 meters away.

Dong Ku didn't know the specific situation of Lu Dao, after he gave the order. Suddenly, I thought of one thing, such a violent explosion, indicating that there were quite a lot of shells in the tunnel, or that ammunition depots would be set up inside due to transportation. The flames detonated the ammunition depot and caused such a violent explosion.

Think of this possibility. He also thought that the possibility of survival of the Japanese troops in the surrounding tunnels was almost zero, and even if they could resist the effective tunnels, they would not be able to stop the explosion comparable to the power of a nuclear bomb, so he hurriedly ordered again, "The various units at the explosion location will use helicopters to transport the personnel preparing for street fighting." Scout and scramble for the pits! Quick action!! ”

Qu Jungang, Yu Lei, and Liu Canghao urgently ordered the nearest tanks to continue to bombard the position without digging a tunnel, except for rescuing the wounded, so that the helicopter gunships could quickly arrive and fight for the fortress.

The various units then moved, and in the clouds of smoke, they rescued and continued to dismantle the unfinished fortress artillery tunnel task that exploded a few hundred meters away.

In the roaring explosion, the mouth of the tunnel quickly appeared, the tanks retreated, and the machine guns were aimed at the open hole, but no one came down to check.

The helicopter took off quickly, a helicopter of fifteen people, straight to the position shrouded in smoke, under the command of the ground personnel, the propeller blew away the smoke, close to the designated position, the soldiers quickly slid down one by one, put on gas masks in the thick smoke, held AKs, briefly assembled, controlled the hole, and then rushed into the hole in the smoke of gas bombs, into the tunnel.

The moment they entered, they vaguely saw the situation in the artillery room in the light pillar of the flashlight, and were shocked at how the Japanese had put several tons of cannons into the tunnel, and they also saw piles of shells, spread on the ground next to the cannons, and it was roughly estimated that there were hundreds of them.

With the entry of the personnel, the environment in the tunnel was clearly explored, and in addition to the sandwich road that only allowed one person to pass through at both ends, the iron door wrapped in asbestos on the second floor was discovered.

"The 39th Division, the 3rd Regiment, and the 3rd Company reported that they had entered the tunnel, found 150 howitzers and 100 shells, and searched the tunnels on both sides, and found no dead bodies, but found an underground iron gate wrapped in asbestos, and requested blasting to enter!"

"Agree to blast!"

Qu Jungang replied calmly.

Immediately, with a loud bang, the two-meter-square, iron door laid on the ground was blown open, and the soldiers went down the second floor down the steps after being alertly tempted.

Just as Dong Ku was searching and entering the artillery bunker, the Japanese army also learned in the joy of victory that the first artillery position was partially destroyed and the surrounding tunnel communication was broken, a total of three points, thousands of soldiers lost contact.

Powerful blasting!

The Japanese realized that the advance army did not pile up the positions here with shells, but forcefully blasted into the tunnel, blowing up part of the artillery positions, causing a martyrdom, and causing the soldiers in the surrounding tunnels to be either shocked to death or traumatized by concussions.

"Reinforcements for those tunnels!! Strangle the enemies who enter!! ”

The commander of the front shouted the order, and then reported the situation to Umezu Mijiro.

Umezu Mijiro did not expect that instead of spending a huge amount of artillery shells to blow up these bunkers, the advance army would destroy the artillery positions with very large ammunition reserves, so that the overall defense could not stop those tanks due to the lack of artillery support, and would be subjected to a large-scale breakthrough and enter the tunnel to fight.

The original plan was to use these tunnels to consume the advance army, forcing the advance army to consume a large amount of artillery shells, and at the same time, constantly strangling the advance army that entered the position, but now it seems that their plan has deviated, and the advance army did not pile up shells in annoyance, but broke through the artillery position first, obviously preparing to enter the tunnel to fight. In this way, there are those Spitfire tanks, there are helicopters on it, and they are really blocked in the tunnel, and they can't implement the combat plan of breaking through the ground in the tunnel.

The only way to defend the tunnel is to use the tunnel, which is more than ten kilometers deep and hundreds of kilometers long, to entangle with the advance army, and consume their vitality.

Umezu Mijiro narrowed his eyes and ordered ruthlessly: "You can use extraordinary means to defend the tunnel, defend and fight section by section, and block layer by layer!" ”

The commander of the front received this order and immediately ordered: "Enter the street fighting!!" Use the most effective killing method to strangle the incoming enemy troops and quickly reinforce the bombed area! ”

Following his order, two or three kilometers away, the Japanese troops, who were minimally affected by the shock, ran along the tunnel to reinforce the position. If the tunnels there are blown up, the enemy will be able to enter the network of tunnels extending in all directions, and they must reinforce there, either block or blow up the tunnels, block the enemy's smooth attack, and use the tunnels to slowly strangle.

At this time, within 500 meters from the center of the explosion, none of the Japanese troops survived, but the nearby tunnels also basically collapsed in the violent explosion, and the center point of the explosion was already an irregular crater that stretched for four or five hundred meters and was fifty or sixty meters wide, with a depth of more than ten meters.

At the same time as the Japanese army was moving, the speed of the advance army was much faster, and it did not take a few minutes for the helicopter to reach the target airspace, and then, in the midst of the roaring explosion, it entered the second-story tunnel.

The second floor of the tunnel was pitch black, the soldiers were worried that the lighting would attract shooting, with the cooperation of several people, one person covered the flashlight with his hand, and then threw it into the shadows, and quickly dodged the position, the fighters behind pounced into the tunnel, and the muzzle of the gun looked for the enemy with the flying flashlight column.

In just a moment, everyone turned on the flashlights tied to the gun, and they were merciful in the sea full of pit blood and died violently, and quickly searched and advanced.

Here, there are no more living people. They were all killed by the explosion in the bunker next to them, and the tunnel was deprived of people.

During the quick search, the warriors were secretly frightened.

It is built here like a fortress, and the tunnel not only has a wall for interception, but also a living room, kitchen, storage, sanitation station, toilet, ventilation system, etc., which is completely an underground fortress.

Searching for the whereabouts, the soldiers quickly found the ammunition depot of the Japanese army, and the moment the iron gate was opened, everyone was stunned.

In the ammunition depot, there are shells and grenades, explosives, mines and other explosives, obviously this is a dangerous storage room, look at the quantity, just more than 40 kilograms of howitzer shells, there must be thousands, stacked on the ground boss of a piece, it is simply a huge powder keg.

And the other gun rooms, the second floor also has this number of shells, a cannon, an ammunition depot, the entire artillery fortress, the number of shells has reached a staggering number.

The number of grenades and explosives is not too much, and it is estimated that they are only stored for artillery shells.

Dong Ku quickly got the information in the tunnels, and he suddenly had a way to reduce casualties and destroy the artillery in these tunnels, so as to provide a guarantee for the attack on the tunnels, at least those tanks would not be blocked by howitzers, cannons and other heavy artillery.

"Blow up those shells, time it for three minutes, evacuate the tunnel, and get away by plane!!"

Dong Ku shouted without hesitation.

Then the order was conveyed, and the fighters with time bombs quickly planted the bombs in the shell pile, and then rushed to the helicopter that landed on the ground as the tank roared away, and then lifted off. (To be continued......)