The offensive was completely blocked, there were more than a dozen offensive points on the whole line, and the attacking companies did not even return alive to a third, and some of the worst companies did not survive. These include all positions, including the Tumen defense, which has been taken in the winter.

At that time, the position that Junko had taken for the attack on Vladivostok was not short, but now it was also a concrete structure, no longer wood, and the structure inside was the same.

This made Dong Ku and other commanders frightened, and they were also amazed at how quickly the Japanese army moved and how well it did its secrecy work. They are not all small people lurking in the Japanese army, some of them are Shaozuo, but they still don't know the news of Lu Dao, except that a large amount of cement is transported to secret locations one by one, but they can't find their whereabouts, and they don't know what Lu Dao is used for.

These are the feedback they received just after notifying them that the attack was blocked.

In the headquarters, everyone was silent, and even Liu Chengcheng rushed from Harbin to participate in this pre-war meeting, hoping to come up with a safe solution.

It has been discussed for two hours, but no one can solve the problems of the Japanese army in the mezzanine, whether it is smoke grenades, gas, or flamethrowers, so far, the effect is not great. The most important thing is that those firing ports passed over with their front feet, and when they looked closely, they were exposed. The Japanese soldiers had obviously searched, but they couldn't find where they were hiding, and when they walked over, the back road was cut off, as if they appeared out of thin air.

If they didn't find a way to get into the mezzanine, they would have no chance to enter these places to fight the Japanese, and they could only be beaten passively outside the mezzanine, in which case as many people would die unless the entire network of positions was blown up.

The Japanese did not see the corpses at the warhead, that is, at the firing port outside the face. This shows that when the Japanese army heard the sound of shells, they left the ground as quickly as possible and went underground to hide the shelling, so that they could not see the traces of casualties.

In this way, even if all the ammunition was expended to blow up the bunkers on the ground of the Japanese army, the Japanese army would still exist underground. And I don't know how their ventilation system was established, even if the ground was blown up, it was difficult to ensure that the Japanese troops who were still alive would get out of the ground and cause casualties to the passing troops, or that the troops would be flanked from the front and rear after the large army.

Liu Yucheng is known as Guiguzi, and this time he can be regarded as having seen the means of war, and the gap between him and his original strategies is simply to do everything. The design is still so ingenious, I believe that if this tunnel network exists, they will not have a chance to fight here, and even if they do, it will be the enemy's ammunition exhaustion, or food will be cut off, otherwise, a Japanese soldier can cause hundreds or more damage to the soldiers who enter the tunnel.

The enemy quickly dodged the shelling......

He sketched pictures of the Japanese army in the tunnels in his mind. Suddenly, my eyes lit up. He raised his head and asked: "The situation reported by Huo Yaozu said that they searched for the warhead horizontally, and when they turned back, they were blocked, and after the fierce battle, the road behind them was also blocked, which shows that the Japanese army has a secret door in the place where they searched." ”

"One more point, the sound of shells flying is heard. Hiding on the second floor, this time cannot be a few seconds, calculated according to the shell flying 800 meters per second, they heard the sound, only three seconds to react. That is, those passages were inside the warhead, otherwise, it would not have been possible to carry ammunition and guns so quickly. If there is an observation post in the distance, they can react a few seconds earlier, but not more than five seconds, and it is impossible to run down the ramp at all. ”

Liu Yucheng's words made Dong Ku's eyes light up, he knew that Liu Yucheng was right, the tunnel entrance must be in the warhead, and it is definitely not a step, it should be similar to the way the personnel of the fire department slide down, solve the problem of the speed of the hole, and not block the soldiers behind.

"That's right, Mr. is right, there must be a secret door in the warhead, which is why Huo Yaozu searched with his front foot, and the road was cut off, and at the end of the search, the troops drilled into the tunnel under the head, and they turned around, and there were enemies in front and behind."

Speaking of this, Dong Ku paused: "I think the first task now is to find where those secret doors are, and then find a way to enter inside, investigate on the spot, figure out the structure inside, and blow it up after finding the ventilation system, without a ventilation system, the oxygen in their tunnel will not last long, once the ventilation system is blown up, we will shell the position for two hours, so that they can't go up to the ground to breathe, or can't open the vents, suffocate them." ”

Liu Zhong nodded and said: "What the captain said is a good way, so that the loss is minimal, no matter what the situation is, the hope of coming back alive is very slim, but it can solve the Japanese troops in these tunnels as quickly as possible, and they can pass through here tomorrow, after this, Changchun will not be a problem." ”

But even if you find the entrance to the secret passage, do you have to knock on the door and tell the Japanese soldiers inside that you want to enter?

After Liu Zhong finished speaking, everyone fell into deep thought.

Dong Ku is also pondering this problem, even if he finds a spit, how can he get in?

The headquarters was extremely quiet for a while, and everyone was thinking about how to find the tunnel entrance and blend in. To enter is to infiltrate, find the ventilation system to blow it up, and provide this side with a detailed internal structure for an all-out attack.

While pondering, Dong Ku suddenly remembered the effect of the smoke used in the tunnel, the Japanese soldiers and the soldiers could not see each other, if they changed into Japanese military clothes in advance, waited for the Japanese soldiers to drill out of the passage, blended into them, and then scared them back with artillery bombardment, wouldn't they enter inside?

Thinking of this, Dong Ku raised his head and said, "I have a way......"

"Good way!"

Liu Zhong praised with a row of thighs, "That's it!" The person who enters chooses Huya to enter, and the size of the loss is a small matter, and the key is to complete the task. ”

Zuo Boyang took over and said: "This method is feasible, but I don't think you can blow up the ventilation system, in case these ventilation systems are independent, or these tunnel ventilation systems are independent, but they are interconnected, and they can't destroy all the ventilation systems in one fell swoop and control the ground, then it still can't meet the requirements of quickly cleaning up the Japanese army inside." ”

"Makes sense!"

Sun Tao praised and said: "Then send one, or two people in, not too many, the main task is to investigate, find the ventilation system, and bring the information back." Then an all-out attack, if it is convenient, attack it, directly blow it up and then withdraw, do not fight inside, or arrange for it to infiltrate and wait for the opportunity to blow up. ”

Dong Ku pondered. Thinking that this was the only way, he glanced at everyone and asked: "Don't worry about the corpses of the Japanese soldiers inside, is there any control outside?" ”

Qu Jungang replied: "Captain, the Japanese soldiers outside don't dare to come out to drag the corpses, those points are all controlled, and the helicopter sees at least a dozen Japanese corpses." ”

"Good! Be ready to attack. ”

After Dong Ku finished speaking, he remembered something and said: "We have also lost a batch of communication equipment, so we have to change all the call frequencies." Use the encrypted channel, this one has no instructions, the Japanese army can't be transferred there, and also, the people who enter choose Huya to enter, concentrate all the ylang-ylang, so that they can do it, and the task is to return with the drawings. The way to respond is to attack again, after the shelling. The tank goes to pick it up and leaves the crypt on its own. ”

"Yes! That's ready! ”

Everyone shouted their orders, and then the helicopters hovering near the tunnels roared back, and the soldiers lying on the ground quickly retreated, followed by the roar of artillery.

As soon as the cannon went off. The Japanese troops, who had already recaptured the ground bunker, reflexively jumped into the tunnel, and in the explosion, entered the second floor.

At this time, the Japanese army was studying the equipment on the soldiers' bodies, such as oxygen cylinders, portable lifting breathing apparatus, flamethrowers, and tiny earphones that were unknown. The advanced AK, the flashlight, smoke grenades, grenades, and semi-automatics with sights in the backpack. All of this made the Japanese army like a treasure, which was too advanced and they had never seen it.

Unfortunately, the ground was blocked, and the passage to the rear was blocked again, and they could not return these to the rear at all, so they could only describe the appearance of these weapons in as much detail as possible with telegrams, as well as some parts that could be removed.

This is also rare information for the Japanese army, which is helpful for the study of the advance army and the study of new weapons.

Although these equipment could not be sent to the rear, the Japanese army had reason to believe that the enemy did not have to worry about entering these tunnels, and even if they found the entrance to the second floor, they would not be able to make any money in the tunnels full of traps.

What's more, they still have poison gas bombs, which are really unbearable, so they throw poison gas bombs and hide in the prepared room, even if the enemy has advanced gas masks, as long as the skin is stained, it will be poisonous.

In their research, the shells fell with a roar, the ground trembled, and the Japanese sat near the mouth of the tunnel, indifferently smoking cigarettes, preparing to recapture the occupied ground fortifications.

The shells fell in waves, and in the smoke, the two tanks rushed to the location where there were Japanese corpses along the reserved passage of the shelling, and then the two figures quickly jumped down, and selected two sets of relatively clean ones with less blood stains to put on, and then the shelling stopped, and the tanks fired smoke bombs, and in just a few seconds, the smoke covered the area.

After firing the smoke grenade, the tank roared backwards and drove out of the smoke.

In the command headquarters, Liu Zhong hit all his spirit on the headset, listening to the movement.

Time passed minute by minute, and in the silent headquarters, everyone looked at Liu Zhong and waited for news from him.

Suddenly, two slight clicks sounded in the headset, and the sound clearly entered Liu Zhong's ears.

"Fire!"

Liu Zhong turned off the headset and yelled.

With Liu Zhong's shouting, the shelling, which had been suspended for more than ten minutes, began again, and the shells whistled straight into the forward positions of the Japanese army.

In the battle room of the forward position, the Japanese troops who came out did not find the enemy in the still thick smoke, and although the smoke outside was thin, it still did not see the light of day, like a heavy fog.

Before they could study why the enemy had not attacked, suddenly, a Japanese soldier shouted: "Shelling!!" ”

With his shouting, more people heard the whistling of the cannonballs, and then one by one, like frightened rabbits, quickly slid down the open east wind mouth, one by one, like sitting on a slide, more than a dozen people, all entered the ground in a few seconds, and then the Japanese soldiers who controlled the secret door inside covered the secret door in the shaking of the earth, slid down, in the dark, squeezed into the pile, squatted on the ground, holding their heads, and endured the violent shock.

At this time, no one noticed, and in the tremor, the two people quietly left the vicinity of the cave entrance, and walked inside by holding on to the wall in the dark...... (To be continued......)