As the tunnels were opened one by one, the report of the tank release came, and the commanders in charge of each group shouted, ordering a unified time, and the attacking personnel quickly returned to the infantry vehicles, and under the escort of the tanks, evacuated the bunkers and took refuge in an open place.

They could not retreat, the time was too short, and they could only resist the shock of the explosion in the tank.

As a matrix was formed, the tanks quickly prepared a defense around the infantry vehicles.

They had barely been defending for two minutes when a loud bang rang out, and streams of flames poured into the bunker from the ground, spraying out of the firing ports on the bunker in all directions, whirring into the night sky.

The battlefield was as bright as day, leaving the soldiers on tanks and infantry vehicles blinded for a short time. But fortunately, the liquefied gas tank was put in this way, so that the concentration of gas in the tunnel was about the same, resulting in a less powerful explosion than the previous high concentration position, and the shock was not so high, and the fighters in the tank only jolted violently a few times, but they were not shocked by the shock wave of the explosion.

The firelight flickered, and as streams of flames erupted, the night sky returned to darkness after a few minutes, but there was silence on the position, except for the thick smell of liquefaction wafting everywhere.

"Clear the blown up pit and find the gas bomb!"

"Go ahead and blow up the tunnel next to it!"

In the silence, one order after another came, and the tanks on the offensive route turned on their headlights and escorted the infantry vehicles into the Japanese position. The Japanese army, after the continuous explosions, lost contact with the nearby positions, which made the Japanese troops in the tunnels frightened one by one, and they did not know what method the Ludao advance army used to capture those tunnels and blow them up so quickly.

Umezu Mijiro was like an ant on a hot pot at this time, and the continuous emergency report was passed to him, making him thunderous, but there was no way to reinforce him. The underground tunnels were cut off. Ground reinforcements they have no air defense, no weapons against tanks, and infantry alone is to die.

"How the hell did the enemy destroy the tunnel??!! quickly"

Umezu Mijiro panted and asked hysterically as he looked at the front commander's fat face that had been slapped into a pig's head.

"Report to Your Excellency, Commander, that the enemy is attacking very quickly. It takes only a few minutes for a tunnel, and when it is attacked inside the tunnel, it loses contact in a few minutes......"

"A few minutes? How can it be??! ”

Umezu Mijiro didn't believe it at all, he had personally inspected the tunnels there, and he had reason to believe that there was an insurmountable moat for the advance army, and the previous victory had shown that the advance army had not lost tens of thousands of dollars inside and outside the tunnel?

This illustrates. The method is correct, if the advance army does not have fire-breathing tanks and indestructible tanks, this offensive and defensive battle will be a strangulation battle.

But now the advance team is about to quickly lose contact with the rear, but the entire line of the well-supplied bunker with sufficient ammunition is cleared, which is really unacceptable to him.

After venting for a while, his anger gradually subsided, and he ordered gloomily: "Continue to call those tunnels that have lost contact." It is necessary to know how the other side of the road captured the tunnel so quickly, and the bunker at the front of the bombed tunnel of the army did whatever it took to prevent the enemy from approaching. If they don't get closer, they won't be able to destroy the tunnels inside! ”

"Hayi!"

Hyotaro Kimura, who was slapped in the face, was resentful. He was the commander-in-chief of the entire defensive line, and before the joy of the previous victory could fall, after the cannon was destroyed, reports of the loss of contact in the pit began to come one after another. But what could he do? Medium energy, separated by the area that was blown up. The ground reinforcements are not enough for the planes in the sky to strafe, that thing can hover, and the dense Vulcan cannon they have seen, and it is definitely not something that an unprotected soldier can bear.

But even if he can't increase his staff, it's a lonely place. But it's not without combat effectiveness, except that there are no reinforcements, just like the tunnel here, it still has absolute combat capability, how can it be like a blown out candle, there is no movement quickly, and even some messages are only halfway sent, and there is no movement, apparently killed in the process of sending the report.

Kimura Hyotaro left the headquarters depressed, and after he returned to the office, he sprinkled all his grievances on the adjutant's body, and slapped him dozens of times in the face, and then ordered that while trying his best to defend the tunnels at the front, he must find out what methods the enemy used to attack, how to blow up the tunnels in such a short time, and what explosives were used.

At the same time, order the tunnel behind to defend the bunker as quickly as possible at the end of the enemy's shelling, and if the tank bombardment bunker cannot be blocked, then block the armored vehicles, the infantry vehicles will approach, and the enemy will definitely not be allowed to get close to the bunker, and hold it at any cost.

When the Japanese army was nervously arranged, the advance army was already familiar with this blasting method, they bombed the tank to open the bunker, after the grenade was thrown into the bunker, then blew up the entrance of the tunnel, occupied the inside of the bunker, and threw the grenade into it without interruption, putting on a strong attack posture, and so all the tunnels in the straight line were blown up, and after the interlayer was also exploded, the gas bomb was thrown into the tunnel, and in a minute or two, the liquefied gas tank entered the tunnel, and then the personnel threw the smoke bomb, and in the same order to place the bomb, the time bomb was set for five minutesand quickly depart.

Although the gas bomb could not cause damage to the Japanese army, the Japanese army was very obedient and wore gas masks, so naturally they could not smell the smell of liquefied gas. Even if the Japanese army did not completely seal the tunnel and build bunkers, they would not dare to approach the entrance of the cave under the action of gas and smoke bombs, so the tunnel they dug became their own graves, which could really be called self-digging graves.

With one explosion after another, the tunnel was being quickly cleared, and wherever it was bombed, even if the Japanese soldiers inside were not dead, most of them were stunned or lost their resistance, after all, there was no difference between air explosions, and the power of liquefied gas explosions was still very large.

At the end of the explosion, in the smoke and dust billowing in the tunnel, they quickly found the mezzanine, found the poison gas bomb, and then used the butt of the gun with the 38 big cover to pinch the wall, quickly search, where there was a firing port that was blown up, first threw in the grenade, and then blew the wall with explosives, and cleaned up the Japanese troops in the mezzanine.

Dong Ku and they did not rest, every time they took out the gas bomb and reported that the soldiers in the tunnel were okay and the gas bomb was safe, they were relieved. They were too worried that the warriors would be gassed inside.

Almost all the tanks of the whole army were dispatched to escort the infantry vehicles closer, the continuous flow of liquefied gas tanks from Harbin arrived at the front line of the attack, and the anti-nausea upgrade was also involved in the transportation, and the farther positions, such as Tumen and other places, were directly transported by transport planes.

The increasingly proficient blasting of the tunnels made it impossible for the Japanese to understand how the advance troops destroyed the entire tunnel. It's no wonder that because of the gas, they don't know that there is liquefied gas in the tunnel, and they can't distinguish the smell with gas masks.

The booming explosion was like a death knell, and the Japanese army was desperate at this time, they knew that once the tunnel defense network that had been built at great cost was captured, everything they operated in Manchuria would no longer exist, and the tunnels that they thought would hold on for several months, or even longer, were defeated in just one day, but the subsequent defeat made them unbearable.

The Japanese soldiers who received the death order howled and desperately bombarded the tanks with their iron fists when the tanks shelled the tunnels, but often as soon as the fire was lit, an iron fist flew out, and several tanks aimed there, and the bombarded shells smashed over.

Although the Japanese army was miserable like the shock wave of the Japanese woodcut, the violent explosion shook them so much that they almost forgot their parents, and naturally they could not prevent other tanks from bombarding the walls of the bunker.

They still insisted, and after the tunnel was blown open, they held the hole and kept the armored vehicles from approaching.

The sound of the booming explosion continued to sound in the night sky, and one by one the iron fists flew out of the bunker and flew towards the tank, and the smoke rings of the bombed tank, although they could not penetrate the tank's outfit and love, but also hit the tank with potholes, not to mention the holes of the tank, which shook the ears of the driver and gunner inside, just like being detained in a big bell and then striking outside.

Unfortunately, in order to avoid the flames that would ignite the liquefied gas in advance, there was no Spitfire in the attack, which also gave the Japanese a chance to stop the infantry vehicles from approaching, and bombarded the tank shells against the iron fist.

In the face of such a defense of the Japanese army, the tank did not care at all, forty-eight shells in a tank, twenty armor-piercing shells, at most more openings. Seeing that the Japanese resistance was stubborn, the tanks methodically bombarded those firing ports, a few cannons and a large hole, and then a high-explosive bomb entered it, and with a bang, all the Japanese troops in the tunnel were blown to pieces, and even the Japanese soldiers in the fighting room next to them were stunned.

The explosion in the enclosed space multiplied the power, making the Japanese army without backup miserable, unable to keep up with the attrition, and did not have enough manpower to defend the bombed position, under the continuous bombardment of tanks, groups of Japanese soldiers died on the tunnel defense.

Perhaps it was this attrition that made the Japanese army unable to follow, or perhaps the damage was too heavy for them to bear, and in the roaring explosion, the Japanese finally retreated to the dark passage and gave up the plan to defend the ground bunker.

After more than half an hour of fierce fighting, most of the shells in the tank were almost consumed, so the shells transported by infantry vehicles were then escorted by the tank to the position of fierce fighting.

At this time, the fighters who had already taken control of the bunker repeated their old tricks, and in the roaring explosion, the tunnel was blown open, and the gas was thrown in, and then the liquefied gas was opened into the hole.

The next thing was simple, in the roaring explosion, graves were formed, and the Japanese soldiers in the bunkers were killed, and before dawn, the forward positions that had been cut off from the rear were completely destroyed, and the army moved forward a few kilometers.

Looking at the gas bombs that were cleared out of Ali, Dong Ku hated the root of his teeth. He really wanted to order these gas bombs to be stuffed into the tunnel behind him and poison the Japanese soldiers inside. But he really didn't need to do it at this time, he had a better way to solve the tunnel problem, why let the gas bomb cause pollution underground? This will not be the time when he was not there earlier, to deal with the Japanese troops in Dongning, Erlongshan, and Hutou Fortress can only use poison gas bombs, this will, he has already taken the initiative, and it will not take too long to destroy the tunnels behind, so there is no need to use poison gas bombs. (To be continued......)