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But after the war, everything was calm in the north wind, and the cities of Qiqihar and Harbin were nervously preparing for war and sorting out their heads.

After Qiqihar arrived in the evening of the same day, he carefully studied the defense map.

General Yang and General Zhao were amazed, and they no longer had the idea of a fierce general for Dong Ku's talent. This is a rare military talent, a talent with a general, and the country is fortunate!

Press the two of them to light the lamp and study the defense map, not to mention the steps of planning and construction, and all the personnel of the dog are in place.

Snow cover, for people who are not familiar with the mountains and forests, let alone find the target in the mountains, it will get lost. The mountains are as silvery white, the small differences of the mountains are all covered by snow, and there is no experience, and in the howling wind, the visibility is only a few hundred meters, and it is impossible to find a single coordinate in the mountains.

But for the Oroqen warriors, the mountains and forests are just like their homes, not to mention the teacups placed with their eyes closed, they can be touched, at least it is easy to find a mountain in the mountains and forests.

After attacking Shuangyashan, they rested in the mountains for one night, and all of them were in place the next afternoon.

As short messages were sent out one after another, the dog sent out three long attack signals.

In the arsenal of Raohe, the entrance of the cave could not be seen in the heavy snow except for a few dozen meters in front of it. There is not even a trace of it on the snow, so it can be said that it is completely hidden in the snow.

But this place has long been marked by the warriors of the Oroqen tribe that is not easy to detect, and it is pointed out more than ten miles away.

Behind the hill opposite the entrance of the cave, the soldiers built a snow kiln in the leeward place, which was a necessary lesson for the Oroqen warriors, and the snow kiln built not only blocked the wind. You can also make a fire to keep warm, and you can sleep in it without feeling cold.

The munitions depot and hangar more than ten miles away are the same, in this mountain forest where the north wind is howling, not to mention that there is an order from above to conceal your whereabouts and reduce going out. Let the Japanese army come out, and they won't run around the mountains. The snow was one or two meters deep, and it was impossible to walk in the howling wind.

But the Japanese soldiers in the cave didn't know what to do, and in the col not far from them, there was a team asking for their names, resting in the snow kiln, waiting for the time to attack.

In the Tiger Head Fortress, there was no figure in the several connected communication trenches, only the dark castles under the snow stared at the snowfield in front of them with telescopes. The large-caliber fortress guns on the rails behind the iron gate are all supported by their muzzles, waiting to be ventilated at any time. A stiff heavy machine gun, Makqin stared at the firing port blocked by a wooden plank in the bunker. Let the snowflakes that are not drifting in fall on the muzzle of the gun, ready to spray tongues of fire at any time.

In order to avoid the cold, all the cement buildings are connected to the fortress of the mountain, and have done enough to block any wind and snow to keep warm, it can be said that once there is a war, the lights are bright, and there is a coal stove not far away. The trenches will stick out their fangs and support each other without being detected by the enemy.

At this time, the Japanese army was in addition to the sentry. They are all in the caves, in the fortress, boring drinking and chatting, passing the long nights, and passing the boring winter.

Time passed quickly in the north wind, and the sky slowly darkened. It was getting into the middle of the night again.

In the dark, the temperature drops to minus 30 degrees Celsius in the howling north wind, and if the warmth measures are not in place, such a severe cold can freeze people to death in three or four hours.

In the mountains and forests, snow particles hit the trunks of trees. In the darkness, a figure walked in the wind, moving step by step, and walked towards the top of the mountain with difficulty.

These people carried strange things on their backs, things wrapped in the tires of trucks, and large wooden hammers with handles unique to Tohoku, and they worked in groups of three, firmly advancing towards the goal in the wind.

As the time approached three o'clock in the morning, a cluster of figures crouched down, and then, the person carrying the tire put the tire down, several people quickly put on gas masks, and stuffed the cut tire into a small cave in the snow, and then, one person held the piercing tire, and the tire was screwed with wire, one person shone a flashlight, pressed the end of the tire stretched into the cave, and the other figure with a wooden hammer on his back weighed a few times, the wheel was round the wooden hammer, and with a muffled bang, it smashed on the gun.

As the wooden hammer fell, a slight snorting sound suddenly sounded from a tire that had been stuck in the mouth, and the man holding the hammer quickly moved the hammer a few times, and then lifted it.

In the fortress, there are people on duty every 200 meters or so, although it is a bit redundant, but if the enemy attacks and there is no warning, isn't it the end?

The Japanese soldier on duty at night hid in the fork at the corner of the passage, and there were only a few shooting holes in front of him, and if he wanted to attack him, he had to walk through the shooting hole in front of him, walk twenty or thirty meters inside, and enter the room where seven or eight people were resting, and then he could enter this fork hole for sectional interception, which could be said to be very safe.

There is no stove here, but there is a small wall of fire, there are deer outside to provide heat, it is not very cold in the mountain, under the baking of this small wall of fire, the temperature is full of minus 178 degrees, and it is precisely because of this that the Japanese soldiers on duty at night are drowsy, holding their guns, staring at the shooting hole, and nodding their heads from time to time.

At this moment, a cloud of smoke slowly floated from the passage in front of him, spreading to the entire passage, the misty smoke made the dim light more hazy, and also made this passage like a fairyland, full of the flavor of oriental mythology.

After the dozing Japanese soldier nodded his head a few times, he woke up suddenly and looked at the shooting hole in front of him.

"On fire?"

Seeing the hazy ahead, his confused mind cleared up a little, and then he picked up the gun and got up to take a look.

The moment he got up, his legs went limp, and then he felt that he couldn't breathe, and his skin was even more hot and uncomfortable, like a flame, and his throat was like swallowing charcoal fire, making it difficult for him to breathe in all kinds of torture.

He clamped his hands tightly around his neck, trying to pull the foreign object out of his throat. But as his eyes quickly turned blood-red and his body bubbled up, he hung his hand weakly and fell sideways to the ground.

Bang!

The diagonal gun fell to the ground, and the others fell to the ground with a puff.

The sound of him falling to the ground did not arouse the alarm of the seven or eight Japanese soldiers in the stone room twenty or thirty meters away, and it seemed that his fall was not important.

In the fortress of those dark forts, the smoke in the traffic trenches quickly filled with the air flow to the shooting holes covered by the cold iron doors and wooden boards, and in less than a minute, the entire dark fort became a beautiful fairyland, and among the smoke drifting, one by one the Japanese soldiers fell to the ground drunkenly, scratching their throats in pain, and their eyes were blood-red as if they were about to drip liquid.

They twisted in pain, one by one losing the ability to scream, and when the skin outside was exposed to the shiny bubbles of the air, they stopped their efforts and quietly enjoyed the beautiful fairyland in the smoke drifting.

Compared with them, those sleeping Japanese soldiers are happier, and the moment they dream that they have picked up a fairy, they will sleep with a beautiful fairy and wander through the fairyland, without any pain, and few can wake up halfway.

Outside the cave, outside the fortress, those figures in the cold wind after everything calmed down, pressed the middle of the tire with a wooden hammer, quickly left there, slid all the way down the hill in the snow, took off the gas mask, confirmed that there was no liquid, and returned to the snow kiln prepared for them separately, the three of them took out the wine, took out the jerky, drank the wine silently, chewed the jerky, and waited for the verdict of fate.

The dog stood quietly in the cold wind, silently cheering for these Oroqen men in his heart.

None of the fighters flinched when they learned that once they were exposed to the liquid in the gas bombs, they would not be able to heal and that they would die. In the cave of Dahe Town, more than a dozen people unloaded the fuse of the poison gas bomb, wrapped the poison gas bomb with a sheared truck tire, plunged the pointed end of the gun into the tire, and tightly screwed the tire with the gun, and the rear port was tightened, leaving an opening, so that the poison gas was sucked into the fortress and cave along the tire and the exhaust fan in the fortress along the ventilation hole, completing the mission goal that Dong Ku had prepared for a long time.

They didn't let too many people follow, and had prepared a snow kiln for the three of them before the attack, and if they didn't come out in the morning, then they could bury the snow kiln directly.

Mustard gas and Louis mixed gas gas bombs, plus phosgene bombs, these two poison gas bombs were the main poison gas bombs used in this attack, and when the Japanese army was defenseless, Hutou Fortress, Erlongshan Fortress, Qinglongshan Fortress and Raohe Mountain Arsenal. At the same time, the quartermaster hangar and the aircraft hangar simmered the Japanese troops inside.

At this time, there was silence in the fortress, only the generators of countless nodes were still roaring, and the smoke went directly into the mountain along the pipe, and was discharged out of the mountain through the microporous smoke exhaust system.

In the dim light, the smoke was still billowing out, and under the thick smoke, corpses lay there.

The Japanese may never have dreamed that the fortress fortress they thought was impregnable could easily be taken down by the poison gas bombs they made, and the entire fortress defense system of more than 30,000 people was solved with only more than 40 poison gas bombs.

Those secret warehouses that were painstakingly transported and hidden for use in the war with Soviet Russia did not even have a chance to be used, and a large amount of materials fell into the hands of the enemy, or rather, the ammunition depots they had worked so hard to build and the ammunition materials they transported were prepared for Dong Ku.

At this time, Dong Ku didn't sleep in Harbin, he got up early and waited for the dog to come back. This attack was the result of a plan that he had been planning for a long time, and based on the advanced ventilation system in the records of later generations studying these fortresses and caves.

The reason for the attack was chosen because it was too early, and only when it was cold would the fortress close the communication trenches, so that the poisonous gas would permeate the entire fortress and maximize the results. Besides, he had to be guarded to take the fortress, and he wouldn't trust the bearded man in Moscow so easily. (To be continued.) For mobile phone users, please go to read. )