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The notorious Japanese Unit 731 conducted medical and biological experiments on the lives of Chinese, Koreans, and Allied prisoners of war. In order to achieve their goals, many healthy Chinese were dissected and mutilated by them to death, which is really sinful!
A Japanese prisoner of war named Katatsuki Sankaku.
He joined the invading forces in March 1936 and served as the commander of the field hospital of the 59th Division of the Japanese Army.
From 1936 to 1944, for 9 years, he witnessed and participated in vivisection experiments on Chinese.
His hands were stained with the blood of Chinese.
After Japan's defeat, in August 1945, Katatsuki was arrested in Korea and sent to China for trial.
On August 17, 1954, he wrote a confession by hand documenting the unforgivable crimes they committed against the Chinese.

One night in early December 1936, they conducted toxicity experiments with three captured Chinese farmers in order to test the effectiveness of rotting toxic gas.
The three peasants were tied up by the Japanese army, their eyes were blindfolded, their hands were tied, and their clothes were stripped off, and they were naked.
In the winter, they were frozen and shivering, struggling in horror, not knowing what the Japanese were going to do to them.
The Japanese imprisoned them in a small hut and smeared them with poisonous gas one by one.
Soon after 3 people were coated with poisonous gas, poisoning occurred: convulsions, purple lips, difficulty breathing, necrosis and rotting of the skin of the body...
The Japanese, like mice observing experiments, were indifferent to their suffering and watched their reactions expressionlessly.
3 people struggled painfully for one night, and the next day, all 3 of them died of poisoning, and the death was extremely tragic.
Painful memories are always heart-wrenching and angry.
But memories are meant to be a memorial that is not forgotten.
In June 1936, at the Harbin Army Hospital, Katatongji Sanhao dissected a Chinese man in his early 40s.
In his confession, he said that in order to study the structure of the human body, he cruelly dissected the Chinese man alive.
On the operating table, he took out the Chinese man's internal organs one by one, admiring and studying them with great interest.
Before going to the operating table, the man was still a healthy man; soon, he was dissected into a scattered corpse...
After the autopsy, his body was eaten by wolverines.
A living being died in this way, and the bones were gone.
In April 1943, at Chengguan, Tai'an, the Japanese captured a Chinese.
In order to test the effectiveness of the toxin needle, Katakichi Ji Sankan injected him with a toxin needle.
With one stitch down, this innocent Chinese citizen closed his eyes in a painful spasm...
In addition to experimenting with Chinese and poisoning Chinese, Tong Ji San gao also repeatedly violated Chinese women, and his behavior was heinous.
On August 1, 1937, in Datong and Rehe Provinces, Shanxi Province, Kata tongji Sancha qiang j 3 Chinese women.
There are young women, there are also underage children...
No matter how they resisted and pleaded, Katatsuki Sankaku was unmoved.
He used extremely vulgar and shameless means to bully and abuse them, using them as tools for sexual discharge, torturing them repeatedly, and making them miserable.
You can't survive, you can't die.
In Tai'an, Shandong Province, the Japanese army captured a beautiful-looking young woman, Katatongji Sanqi Beast, who was stronger than 80 times.
After the woman was ravaged, her spirit became trance-like, she was naked every day, she went crazy, and soon she committed suicide...
According to Kata tongji sankao's confession, during the invasion of China, he forced a total of 26 Chinese women, bringing them a lifelong nightmare, and the flower-like life was madly crushed and withered...
His confession of the crime of invading China allows us to see the ugly face and criminal deeds of the Japanese devils.
Although history has become the past, the past will not be forgotten.
Taking history as a mirror can know the gains and losses.
Chinese history of being invaded by the Japanese will become a mirror that will always wake us up:
Do not forget the national shame and revitalize the Chinese nation.
[Some of the pictures in this article come from the Internet, and are deleted immediately after any infringement contact]