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The loud roar sounded continuously, and the Japanese troops in the tunnels were killed and injured countless times. With the detonation of the time bomb on the liquefied gas tank, more than a dozen liquefied gas tanks caused a violent explosion at the front end, and even the bunker was overturned for a large part.

The Japanese army gathered at the front end to prepare to add fuel to the tactical blockade, this time down a roll and bag meeting, the loud bang at the front end of each tunnel to kill hundreds of Japanese soldiers, together with the tunnel most of the collapse, although did not destroy the second line of bunker three or four hundred meters away, but none of the Japanese troops in the middle of the tunnel survived.

After the violent explosion spread to the second bunker behind, most of the Japanese troops inside were engulfed by the shock wave and flames surging along the tunnel, causing heavy damage to the Japanese troops in the most dense area, and tens of thousands of Japanese troops disappeared in one explosion.

By this time, the fighters who had dropped the liquefied gas tanks had already rushed back, and in the midst of the continuous explosions at the small holes that came out of the second floor to the ground, they returned to the front and got into the infantry vehicles or tunnels to avoid the shock wave of the explosion.

This explosion made the Japanese army completely stunned, and they did not know why the Japanese troops who committed suicide out of those small holes in the road could block the enemy's tanks every time, and did not wait to block the enemy's approach.

Kimura Hyotaro was taken aback when he received the report, the loss of two brigades and soldiers outside the brigade was second, so he couldn't stop the other party's attack?

Just when the Japanese army held an emergency meeting to discuss countermeasures, the successful blasting allowed the soldiers to find a way to break through, confirming that this tricky plan can be imagined, even if the tank is close to the red bunker, there is no delay, and the Japanese army has cleaned up the corpses blocking the pipeline, and they have completed the action of putting liquefied gas tanks.

So, with the command. The general offensive begins. Smoke bombs flew into the positions where the smoke had not yet cleared, shelled in depth, and in a near-windless environment, the tanks, guided by the infantry on the ground, drove into the positions.

Unhindered along the way, he stopped his progress after reaching the blasted bunker. The soldiers in the infantry vehicle moved quickly, rushing into the smoke one after another, repeating the previous arrangement of the thunder.

Although the earthquake collapsed some of the exits behind, but because it was frozen soil, most of the holes were not filled, and the soldiers moved quickly, arranging the holes one by one, and using the army to probe the holes that were not shattered and only left a thin layer of frozen soil, and also arranged the mines.

The Japanese army will no longer know what to do. The strong smell of gas and strange smell in the tunnel made them all have to wear gas masks. When the fighters approached through the walkie-talkie on the tank and began to bombard the bunker, they were powerless to stop it, and the loud roar made the Japanese understand this time that they could not get out and were completely sealed underground.

This steel fortress that the Japanese army thought could no longer stop the advance of the advance army at this time, which made the Japanese army feel that the general trend was gone. They spent a lot of manpower and material resources to build a steel fortress. In front of the advance army, it was still like a paper paste,

"Stop the enemy's advance at any cost!!". Umezu Mijiro yelled hysterically.

Kimura Hyotaro has already seen his fate at this time, and as a defensive person will always be, and his last successor will not be to die in battle, he will be given a caesarean section.

After receiving the order, an evil light burst out of Kimura Hyotaro's eyes, and he grabbed the phone and gave the order.

At this time. The advance force was already unstoppable, and they did not clear a section of the tunnel, but they threw explosives to completely blow it up, preventing the Japanese from going around the tunnel to the rear of the attack, and cleaning the tunnel of poison gas bombs. Thousands of meson gas bombs have been recovered.

At the same time, the helicopters blocked the rear of the Japanese position, closely monitoring the passage of reinforcements or retreat of the Japanese army, as long as they saw a figure, the rain of machine gun bullets would pounce, so that there was not a single Japanese soldier within two or three kilometers behind the position.

At this time, the snow made it difficult for the Japanese army to carry out large-scale reinforcements or transport supplies, making the position a lonely island.

In the fierce battle, a group of tanks and armored vehicles quickly broke through, straight through the Japanese position, stuck several main paths of the Japanese army, helicopters quickly transported troops, built a position there, blocked the retreat of the Japanese army in the tunnel, blocked the reinforcements of the Japanese army, and completely ate the remnants of the enemy in the tunnel.

At the same time, the soldiers who landed turned over and blew up all the exits of the tunnel, blocking the Japanese troops in the tunnel, so that their own graves would not be wasted.

The Japanese army wanted to go to the ground but there was no door, and they couldn't do anything but shoot frantically in bunkers. And the tongues of fire of those machine guns provide direction for the tank in the smoke, and the leading fighters hide behind the tank, directing the tank to aim at the tongue of fire and tom a few cannons, where the dumb fire of the machine guns is secondary, and the bunker is also about to be blown up.

The battle line of the tanks was a flat advance, which made it difficult for the Japanese to find a salient, and in the three-hour desperate group hit, the tunnel position was gradually lost, and the attack of the advance army was not impatient, steadily advancing, and every time they came to a bunker, they were reluctant to classify, block those exits, and blow up the links between the front and the back.

At this point, the Japanese army seemed to be difficult to resist, and most of the more than half of the more than ten kilometers of position had been occupied in more than three hours.

At this time, the benefits did not move forward, Dong Ku and they were still on the first front line that lost contact with the rear, he was very worried that the Japanese army would jump over the wall in a hurry, although the Japanese army was no longer able to fight back, and the tunnels could not be occupied before it was dark, but the Japanese army still had a killer weapon, that is, poison gas bombs.

So, all the fighters paid close attention and wore three gas masks on their bodies. Because at this time, the breath will also be frosty, and the gas mask will be blocked by the gas for a period of time, or the cold will freeze the skin, lose its elasticity, and lose the effect of sealing.

At the same time, he withdrew all the armored vehicles in the position, and the number of fighters was reduced by more than half, and there were no longer figures lying on the ground as before, laying tricks.

Although his gas mask is better than the Japanese army's, the concentration of this thing reaches a certain level, or the soldier closes the outer breathing laundry bucket slowly, the gas mask will be invalid, that is to say, if there is that thing, if it can't automatically supply oxygen, it will still lead to death.

And this will, the smoke everywhere on the position, it is impossible to distinguish whether it is poisonous gas or not, and when it is discovered, that is, someone has been poisoned, or sees the shells shattered, and only then does it know that the poisonous gas bombs are coming.

Everyone is very nervous, this will be windless, and if the Japanese army really drops poison gas bombs, it will really inevitably lose the lives of the soldiers.

But fortunately, the blasting of the tunnel went very smoothly, the occupation of sections and the bombing of sections were steadily advancing, and the Japanese army had exhausted their skills, attacking the blockade position three times, unable to block the attack of the helicopters, and finally gave up reinforcements, and seemed to realize that even if they were reinforcements, they would only add more lives.

The Japanese army died down, and only the Japanese soldiers on the position knew that they could not escape death, and still tried their best to block the attack, trying their best to get out of the ground and blast human bombs, there was no other movement, and it seemed that the Japanese army had abandoned their iron-clad fortress and started anew.

The more he arrived, the more careful Dong Ku became, he knew that the Japanese would not be so disciplined, and there was no poison gas bomb released in the tunnel, perhaps because the advance army carried out the tunnel blasting time was too short, and the people did not go deep, but the poison gas bomb in the field, Dong Ku always felt that the Japanese army would release it, and staying there was also a way to block it.

In the tunnel, the Japanese army was nervously assembling and disassembling the disassembled cannon, which was the 75 mountain gun, which was a small-caliber artillery. At the beginning of the attack, the guns had already been transported into the tunnels, and at this time they were being urgently assembled, apparently preparing to build an artillery line.

The Japanese soldiers in the tunnel were also carrying explosives, and it seemed that they were going to use those explosives to blow up the tunnel.

On the ground, the advance army did not know the situation under the road, and saw that in another five or six kilometers, all the tunnels here could be blown up, and there was already a group of pillboxes on the periphery of the Japanese army, and it was estimated that it was no more than ten kilometers away from the city.

If there is no change in speed, they will complete all the battles for the tunnels before dark, and the follow-up troops will be able to drive straight in.

In the headquarters, Dong Ku was extremely nervous, he really didn't know the bottom of his heart, and once again ordered the withdrawal of some infantry vehicles and soldiers, and the withdrawal of nearly half of the tanks, he was really afraid that the Japanese army would make poison gas bombs. Although there were no more artillery, the Japanese could have detonated the gas bomb in the bunker, and the shock wave would send the poison gas out of the bunker and diffuse.

Zuo Boyang had never seen a poison gas bomb, he didn't know how powerful it was, and Liu Chengcheng also didn't know how good it was, seeing that Dong Ku was so careful, he actually slowed down the speed of the attack out of worry, although he was puzzled, he didn't dare to interject.

Xing Yuan, Sun Tao and others all knew the power of the poison gas bombs, and the corpses of the Japanese soldiers in the tunnels were wrapped in plastic sheets when they cleaned them up, and those corpses were also sealed in plastic bags before they were transported, and they were burned in the big pit dug in advance, and no one was allowed to do so for several kilometers around. It can be seen that Dong Ku is afraid of that thing.

They also saw the abhorrence of the tragic death of the Japanese soldiers, the burning bubbles on their bodies, the painful expressions, the bloody and blurred chests, and even the hidden inside, which were all caused by the Japanese soldiers themselves.

Regarding the Japanese army's position, which was destined to be completely destroyed, they agreed with Dong Ku's caution, believing that the Japanese army would jump over the wall in a hurry and would take the method of burning jade at any time.

As a result, the speed of the attack was sharply reduced, and in the open space of more than ten kilometers, Dong Ku did not leave troops to garrison, which is why those tunnels were blown up, as long as the advance continued, the Japanese army had no chance to lurk in the breached positions behind, eliminating the possibility of being infiltrated into the rear by the Japanese army.

It is said that the ship is sailed carefully for ten thousand years, and Dong Ku's caution is not untargeted. His order slowed down the attack, but it also saved the soldiers from a catastrophe. And the Japanese army really wanted to use mountain artillery to fire poison gas bombs. (To be continued......)