introduction
So far, many ammunition left by the Japanese army, many of which have been left behind by the Japanese army, can be dug up on many infrastructure construction sites in the northeast, and many of them are even poison gas bombs, and these incriminating evidences invariably point to Unit 731. Among the numerous crimes committed by Unit 731, it has to be said that there was a poison gas experiment, and when this experiment was exhibited at the International Tribunal for the Far East, many Japanese officers and men wanted to argue sophistry, but after seeing the evidence of the crime, they also had to admit to the maddening experiment done in Unit 731.
Evidence of the secret development of poison gas
The use of poison gas by the Japanese army on the frontal battlefield has become an indisputable fact, in fact, when the First World War broke out, the Japanese army did not have the ability to use poison gas at all, and it was only after seeing germany use poison gas on the frontal battlefield to obtain great results, and only began to study and produce poison gas, but just when the Japanese army wanted to expand this poison gas equipment into permanent equipment, the international mainstream powers signed treaties banning its use, which made the Japanese army want to use poison gas on a large scale on the frontal battlefield Disillusionment was shattered.

After the September 18 Incident, in the face of the ubiquitous guerrillas and a large number of regular troops in China, the Japanese army saw its own disadvantages on the frontal battlefield and began to plan the use of biological and chemical weapons, which was undoubtedly condemned by the League of Nations, but the Japanese army thought of taking the form of secret research and development, which circumvented the censorship of the League of Nations.
On the issue of developing poison gas, the Japanese army began to take a quick and convenient approach - building a large number of gas chambers for human experiments. Unlike the gas chambers in the concentration camps established by Germany in Europe in World War II, the gas chambers of Unit 731 were used entirely for the development of poison gases, and the area was not large, and could release a variety of different poison gases to facilitate the observation of the effects of different poison gases.
In the development of poison gas, many innocent Chinese civilians have become test subjects, so that the body pits of Unit 731 are deeper than those left by the Japanese massacre, which shows how many civilians have become their test products. In later autopsies, traces of various poison gases were found, and some even traces of bacteria remained, which fully proved the incriminating evidence of the development of chemical weapons by Unit 731.
At the International Tribunal for the Far East, many Japanese officers and men said that if Chongqing could not be conquered for a long time, they would be ready to drop poison gas in Chongqing, and then dozens of bombers would be sent to bomb Chongqing with poison gas bombs.
Experiment with maternal love
Maternal love is great and selfless, but Unit 731 took a notorious maternal experiment in the laboratory. It is to lock a mother and son in a room, and then start heating the ground, and when the heating reaches a certain level, observe what choice the mother will make, whether to hold the child in her arms to protect the child, or to put the child on the ground and step on it to avoid the heat.
Hundreds of mothers and sons fell prey to the mother-in-law experiment, and among the sources of these were underground party members, villagers, and Soviet civilians who were listed as potential enemies by the Japanese army. When the Japanese army launched the Nomenkan conflict, in order to promote the Japanese army to gain the initiative in the front, the Japanese army also inhumanely conducted poison gas experiments on many Soviet civilians to observe the effect of poison gas on the Soviets, many Soviet civilians were locked in gas chambers, accepted this weapon experiment, which triggered a severe condemnation of the Soviet foreign service after the end of World War II, and the experiment of Unit 731 became the most severely tried unit in the International Tribunal for the Far East, and its crimes were far above the general Japanese combat troops. A large number of officers and soldiers could not escape the punishment of hanging, but it was also difficult to erase the trauma caused by Unit 731 in these occupied areas.
epilogue
For Unit 731, it has forever nailed to the column of shame of history, and the record of its development of chemical weapons has become an indisputable fact, and it is precisely because Unit 731 is so mad that it has led to the scorn of it in later history, and this history should also be remembered by all Chinese people.