The attack of the advance army did not stop, and during the artillery bombardment, several tanks covered the flames in the light of about 500 meters on both flanks, cautiously and quickly moved forward, and in the violent turbulence, in the smoke and fog of gunpowder rushing into the sky, they crossed the big craters that were blown out, and approached the rear of the Japanese positions with difficulty.

Since he was preparing for a full-scale attack, Dong Ku naturally would not leave those fortress guns behind. He destroyed only one artillery position, and a few more that had to be cleared.

Now that he has infiltrated the interior, what he has to do now is to take advantage of the enemy's time to move away each shell warehouse, continue to blow up those artillery pieces with shells, and make the infantry position network in the middle become an isolated island that has lost contact with the rear in order to prepare for a follow-up attack.

The shelling set aside a passage of four or five hundred meters, and under such a violent shock, the Japanese army absolutely did not dare to go up to the ground to observe, because there was no difference between suicide.

The tank, smoothly crawling through several unbroken passages that had been surveyed in advance, rushed to a position about four or five kilometers behind in the debris of cement on the ground, in front of another staggered artillery fortress, and then the bombardment began.

More than a dozen tanks are aimed at a point, and the beam of armor-piercing shells can blast through it, even if the cement wall is thick, it cannot stop the bombardment of more than a dozen tanks. In the flickering firelight, in the midst of a violent explosion in the distance, a large hole soon appeared.

A large hole appeared, and instead of spitting fire, the Spitfire tank drilled out of the tank and rushed into the hole in the shaking of the ground.

"There are no shells in it, only cannons!!"

The warrior who got in passed the message back.

Dong Ku had long expected this news, and the Japanese army would not be stupid enough to pile up shells outside again and provide the advance army with explosives to blow up the surrounding tunnels.

If there were not enough shells, it would not have been possible to destroy such a strong fortress and kill so many soldiers. It is even more impossible to cut off the front and rear of the artillery positions.

Apparently, the Japanese were ready to laboriously transport shells, more than 40 kilograms of shells, not so much that they could not be carried to keep up with the launch.

"Burn all the cannons!"

The commander calmly ordered.

Immediately, the artillery fire stopped, and a group of twenty tanks covered one Spitfire. Along the artillery bunker that had been blown up, he began to diverge left and right, one by one, and searched to the side,

The group left in the middle waited for the warrior to return, and the fire-breathing tank approached forty meters, and with a snort, a fire dragon erupted, and the flames instantly burned fiercely in the hole.

After three consecutive sprays, the Spitfire withdrew into the tank matrix. Moved laterally for several tens of meters, continued shelling bunkers according to the location of the first opening, digging the second opening.

In less than two minutes, before the smoke had cleared, the Spitfire Tank erupted again.

Although the entrance to the cave was blocked by the Japanese army, the air inside the bunker was circulating, the flames burned quite violently, and the lone cannon was wrapped in flames. Hunting thunder burns, very quickly. The color of the cannon began to change.

It seemed that they felt the temperature of the artillery room, and the Japanese soon discovered that the advance army was setting fire to the artillery room, and immediately understood the intention of the advance army.

Although the cannon body may not be burned, but those parts will not, and after the fire, the parts are destined to deform. As a result, the cannon cannot be used, then they can only guard a pile of iron lumps and sigh.

"Bombardment of the No. 2 coordinate !!"

The Japanese commander was in a hurry and hurriedly ordered the rear position to shell the artillery positions in front to prevent the tanks there from sabotaging.

With the command, the shells flew whizzing. With a loud bang, the light of the fire enveloped the second artillery position in the middle.

Hearing the helicopter warning, all the tanks quickly approached the burning bunker to prevent the Japanese from drilling out to carry out the bombing, and those shells exploded twenty or thirty meters away, which could not affect the tanks at all.

The artillery shells on this side rang out in unison, and the shells staggered through the air, bursting into a slippery burst of flames, and then a loud bang sounded in the rear artillery position of the Japanese army.

The fierce shelling instantly dumbed down the Japanese artillery, so that the Japanese soldiers who had just opened a bubble or two did not have time to return to the second floor, and they were all shocked to death in the tunnel, making the blood dripping everywhere in the tunnel.

In the violent explosion, pieces of tanks rushed into the position, and under the watchful eyes of the Japanese troops at the front, Shi Shiran went straight to the back.

"The enemy is going to cross the position!!"

The Japanese reported that one after another iron fists flew out of the firing ports and slammed into the advancing tanks.

But the iron fist can't shake the tank at all, so how can it be intercepted? The Japanese could only watch helplessly as the tanks whizzed past them.

Where did the Japanese army know that Dongku's shelling was nothing else, the previous shelling was to prevent the Japanese army from laying anti-tank mines on the ground, and the next thing was to eliminate some Japanese troops in artillery bunkers, anyway, it was all bombing, how to recover the cost if it didn't kill or injure people?

A large number of tanks poured in, and then in desperation, the Japanese army rushed to the second artillery position and the last artillery position.

The helicopters all took to the air, whizzing and circling in the air, following the army of tanks. At this point, almost all of the other horses and Spitfires in the hands of the advance troops were on the field to carry out the most reluctant cleaning of the Japanese artillery positions.

The Japanese also saw that although the shells in the rear of the artillery position had gone underground, they could not prevent the artillery from being burned, and the loss of the artillery meant that they lost the opportunity to go to the ground.

"Blow up those fire-breathing tanks at any cost!!"

The commander of the position brazenly ordered.

As a result, in the soft soil that had been blown up by the artillery, small hourglass-shaped craters appeared, and one by one the Japanese soldiers drilled out of the soil, holding explosive packets, holding cluster grenades, and approaching the tanks that had destroyed the artillery in the fog that had begun to dissipate.

Their appearance is exactly what the helicopter wants to see, but the soldiers on the helicopter did not stop them from coming out in advance, when the Japanese army sniped into pieces, at the moment when the Japanese army fired smoke bombs, the Vulcan cannon buzzed, the rain of bullets instantly annihilated the following, the blood mist flew and drifted, the soil rose to the sky, the Japanese soldiers were beaten one by one, their limbs flew horizontally, and the bombardment caused them to finally not even have all the corpses left, and they died in pieces.

Massacres have become a habit for the advance army, and when they face the enemy, they face the jackal-like Japanese, Soviet and Russian soldiers, without a trace of mercy.

In just a minute or two, the ground was covered with the corpses of Japanese soldiers and debris scattered everywhere. The black dirt was covered with yellow corpses and bright red visceral stumps.

And those tanks and Spitfires, they don't care about this, they don't even have basic protection, and concentrate on bombarding artillery bunkers and burning them.

The helicopter bullets did not affect them at all, at most they made some pits, so the work of protecting the Japanese was entrusted to the helicopters.

Each helicopter has only three people except the pilot, a Vulcan cannon on one side of the hatch, and a co-shooter is responsible for carrying the boxes for them. In fact, a box of bullets is a chain of 1,000 bullets, and a person is also very relaxed, which is enough to ensure the continuation of bullets.

When a fire-breathing tank enters an area, it will blast a fire dragon with enough burning power to make the tunnel burn fiercely.

As the Japanese army continued to pour out, the moment the smoke began to fill, the Spitfire tank simply turned the direction of the tank facing the bunker and behind it into a sea of fire, and the tank could move along the middle, even if the smoke bomb could not see people clearly, but the fire could still be distinguished, so I didn't mind the Japanese smoke bomb at all, but everyone wore gas masks, because the Japanese army would use any means.

The Japanese suffered heavy casualties, and groups of Japanese soldiers with white belts on their heads fell in the helicopter fire overhead, and they sadly found that they did not even have a chance to commit suicide, and they could not get close to the tanks at all, and they could not prevent the tanks from destroying the artillery.

Occasionally, the Japanese soldiers who slipped through the net held the explosives, but they were sadly surprised to find that they could not pass through the flames, one was that they could not see the position of the tank, and the other was that even if they committed suicide, the explosives were ignited by the flames, and they would not have a chance to get close to the tank, and they would be blown up.

At the beginning of the design, the Japanese army had already counted the flamethrowers, so the bunkers exposed to the ground in the tunnel were not a straight line, but a section, in order to form a staggered defense system, so that each section of the bunker was a circle of gun holes, so that there was no shooting blind spot here, so that as long as those flamethrowers appeared, they would be blown up, so that they could not get close to the bunker for destruction.

Having bombed so many armored vehicles and infantry vehicles at one time before, their defenses were indeed effective. But the Japanese never expected that their iron fist was ineffective against tanks, and they did not expect that the advance army would have Spitfire tanks that were stronger than flamethrowers, and now, all their defenses could only be furnished, and the artillery could not hit the tanks, and the Japanese could not pose a threat to the tanks and Spitfire tanks close to the bunkers, so they could only watch the tanks and Spitfire tanks pull out the fangs of the artillery positions that had lost their protection.

For half an hour, the Japanese finally gave up on rescuing those artillery, and they pinned their hopes on the roadway battle, so that the position was completely underground.

Umezu Mijiro believes that the advance army of the tunnel designed in this way should not want to pass it easily, even if there is no artillery, the tunnel is a curse that the advance army does not dare to overcome.

Indeed, Dong Ku did not know the road, these tunnels were far more difficult to deal with than he imagined, and the Japanese army had already thought of everything, and it was completely possible to block their attack. Even if tanks can pass, even if helicopters can pass, then can their supplies be delivered by air? The fuel consumption of the tank is quite huge, and without the supply convoy to follow, in the end it is not a battery that cannot be moved?

But in any case, the threat of these artillery must be eliminated, and the ground must be completely controlled by itself, so that there is a chance to clear the underground, quickly cross this area, and carry out urban siege and highland competition. (To be continued......)