The plane gradually approached the area illuminated by the red flare. After determining the approximate location, the captain ordered: "Prepare to drop the bomb!"

Inside the aircraft's ammunition bay, the bombardier quickly removed the safety cover in front of the bomb, pulled the lever on the belly of the aircraft, opened the belly, and stood in front of a push rod with his seatbelt fastened. With just one push of this push rod, all 1.5 tons of bombs loaded in the cabin would be released: "The belly is open, and the ammunition is ready!"

The observer was staring at the situation on the ground, using the periscope on the plane to observe the ground targets and constantly calculating the distance.

Once within the attack range, the observer begins the countdown!

"three!"

"two!"

"one!"

"bomb!"

Following the captain's order, the bombardier quickly pulled the push rod, and one by one the 150-kilogram aerial bombs in the ammunition bay fell off the slide rails and fell to the ground!

Twelve bombers flew over the base of the 731st Unit. The loud roar of their engines alerted the Japanese defense forces on the ground to something unusual.

"There seems to be a plane in the sky!"

"Plane? Where did the plane come from?"

"Isn't it that the Mao Bear is coming to bomb us?"

"Are you kidding? It's night time!"

Just as the Japanese soldiers were discussing, suddenly a sharp-eared Japanese soldier heard the sound of something heavy falling above his head.

"bomb!"

"Air strike!"

However, just when a group of Japanese soldiers were still wondering whether they had heard it wrong, suddenly a huge explosion sounded in the base of the 73rd Unit.

"boom!"

Immediately afterwards, even louder explosions were heard, and they continued.

"boom!"

"boom!"

"boom!"

"..."

The headquarters of Unit 731 turned into a sea of ​​fire. Aerial bombs easily blew up some of the Unit 731's fortifications, and the Japanese hiding inside were sent to see their Amaterasu.

The Japanese troops’ base began to burn, and the flames illuminated the entire base of the Japanese 731st Unit.

However, the bombers in the air did not retreat. After the first round of bombing, the bombers circled in the air and prepared for the second round of bombing.

The Il-4 bomber can carry tons of aerial bombs on its belly and one ton of aerial bombs under its wings. Four -kilogram aerial bombs have not yet been dropped.

"Siberian Tiger, I'm Nighthawk. I'm going to launch the final round of bombing. Once the bombing is complete, I'll land!"

"Siberian Tiger received, the runway has been cleared and the airport is ready for landing!"

"Roger that!"

Zhang Yingcai took a look through his binoculars at the encampment of the Japanese Unit 731, which had become a sea of ​​fire, and gave the order: "After the second round of bombing, the first and third companies will launch an attack on the Japanese Unit 731. No matter what means you use, take down Unit 731 within an hour!"

"Yes!"

At this time, at the base of the Japanese 73rd Unit, a group of Japanese soldiers were wailing on the ground, but the Japanese had no time to care about these Japanese soldiers.

"The enemy is coming up! The enemies at the airport are coming towards us!"

The surviving Japanese observer quickly reported the situation outside to the command center.

Kitano Masatsugu was a little panicked at this time. He had no idea how many enemies were on the opposite side. Bombers were also dispatched. Although the reinforcements had already set out, the roads were not cleared and it would take at least three hours for them to arrive, or even longer.

"What are the casualties among the garrison?"

"Report, Your Excellency the Commander, it's impossible to count the exact casualties!"

"Then order everyone who can still move to immediately pick up their weapons and take up their positions, and wait until reinforcements arrive!"

"Hayi!"

"Commander, do you need to destroy our research data?"

According to the confidentiality procedures of the 731st Unit, all experimental data and materials must be destroyed if there is a risk of leakage.

"Not for now. Prepare the special bullets for me. If the enemy attacks, fire the special bullets immediately!"

"Hayi!"

Special ammunition is the trump card of Unit 731. Although Kitano Masatsugu is panicking, he does not think that the enemy can capture Unit 731. As long as all kinds of special ammunition are fired, the enemy will...

Groups of Japanese soldiers wearing protective clothing once again entered the outer positions of the 73rd Unit’s base. Some Japanese soldiers took out ammunition with special markings from the warehouse and began to distribute them to the Japanese soldiers.

At this time in the air, twelve Il-4 bombers had completed their turn and once again arrived above the heads of the Japanese and began to drop bombs.

Chapter 474: Brutal Acts Unspeakable in Words

"call out!"

"call out!"

"call out!"

"..."

Twelve Il-4 bombers began to drop bombs again. After the aerial bombs fell off the wings, they rotated in the air and then fell rapidly with the warheads facing downwards.

The Japanese soldiers, who had just experienced a round of bombing, heard a sharp sound of breaking air above their heads and suddenly became panicked.

"bomb!"

"avoid!"

"spread!"

"spread!"

A group of Japanese soldiers rushed out of their positions, trying to avoid the bombs above their heads.

"boom!"

A louder sound than the previous explosion was heard, and the explosion was accompanied by flames and shock waves, killing all the Japanese within 150 meters of the bomb landing point, or injuring or killing them by the shock wave.

The killing radius of a 250-kilogram aerial bomb can reach 150 meters or even 300 meters, depending on the terrain. If you don't have a clear understanding of this concept, you can convert it into area. For example, using the minimum killing radius of 150 meters, the killing area of ​​an aerial bomb is square meters. In most cases, it will only be larger, not smaller.

In later generations, the area of ​​a standard football field is about 7,000 square meters, and the destructive power of a 250-kilogram bomb can affect the area of ​​ten football fields.

The first aerial bomb fell, followed by the second, third, fourth... Twelve Il-4 bombers, a total of twenty-four aerial bombs fell in various areas of the rd Unit's base.

A Japanese soldier, covered in blood, with blood oozing from his ears, nose, and eyes, tremblingly climbed up from the ground and looked around. The familiar buildings were gone, as were the trees, roads, bunkers, barbed wire, walls, and so on. All that remained was a large pit, a pile of corpses, and a burning flame.

After the Japanese soldier took a step forward, his body fell down uncontrollably, blood kept coming out of his mouth, his vision began to blur, and in the end he only saw someone in the distance approaching their direction.

"Safety!"

"keep going!"

"Safety!"

"Wounded Japanese soldiers found!"

"Refill the gun!"

"..."

After the bombers finished dropping their bombs, the soldiers of the first company quickly took action and rushed directly into the base of the 731st Unit without encountering any resistance.

At this time, the base of Unit 731 had been bombed beyond recognition. The high wall that originally blocked the attack route had collapsed and the watchtower had disappeared.

The bodies of the Japanese soldiers who were on duty in front of the gate could no longer be found. Only a Type 92 heavy machine gun that had been blown into pieces proved that there had been a guard post here.

There was no need for flares. The entire Unit 731 was burning. There were flames everywhere. Some buildings were on fire, and some were the corpses of the Japanese soldiers.

"Reporting to the battalion commander, our unit has successfully entered the 731st Unit's base and is entering the headquarters building according to the established plan to search for the underground laboratory!"

"Roger that!"

The signalman quickly contacted Zhang Yingcai.

"Report, the battalion commander asked us to wear gas masks!"

"Roger that!"

One by one, the soldiers quickly put on the gas masks that had been prepared long ago, and quickly wrapped all exposed parts of their bodies tightly, and began to enter the core area of ​​the entire Unit 731 - the laboratory building.

Ten minutes later, all the Il-4 bombers landed at the Unit Airport, and Zhang Yingcai and a squad of soldiers entered the Unit laboratory building.

"Company Commander, we can't kill them. The commander's order is to take these beasts back. Killing them would be too easy for them!"

"Yes, Captain, we can't make any mistakes!"

"Company commander!"

Zhang Yingcai had just found his men when he saw several soldiers stopping the company commander.

"What's wrong!"

"Captain, take a look at yourself. I, I, I..."

When the company commander Wang Qianhu saw Zhang Yingcai coming, he pointed at a room in front of him with red eyes and said with gritted teeth.

This is an imaging room. Various photos are hung on the walls of the room, all of which are photos of the Japanese conducting experiments.

The Japanese soldiers, wearing military uniforms and masks, were conducting various inhumane experiments, the cruelty of which cannot even be described in Chinese characters. Their behavior was not even worthy of being called human, but worse than that of animals.

Any normal person or even an animal would find these acts cruel, but they carried them out again and again. Moreover, these devils not only did not show any tension or fear on their faces, they even had smiles on their faces.

The behavior of the Japanese devils is so terrible that even Chinese characters, the most complex, comprehensive and diverse language in the world, cannot describe it. Any words or any language seem so pale and powerless in describing the Japanese devils' atrocities.

Zhang Yingcai was also a man who had seen many storms. He had witnessed the cruelty of the Japanese 516th Unit in Qiqihar and had fought on the battlefield with corpses everywhere. But at this moment, his body was trembling. These photos were like knives stabbing into Zhang Yingcai's heart.

Zhang Yingcai once thought that the experiments of the 516th Unit were a demonic act, but it was not until now that he understood why Li Yunlong asked him to take all the experimental personnel of the 731st Unit back.

Letting these people be killed by a single bullet is too cheap, too cheap, too cheap, too cheap for them. For these devils, being cut into pieces a thousand times would be too light a punishment.

"Battalion Commander, let me kill them, kill them!"

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