Unit 100

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Unit 100 (第百部隊, dai-hyaku butai) was an

Dairen and Hailar. The Hailar branch was later transferred to Foshan.[2]: 313  Between 600 and 800 people worked at Unit 100.[2]
: 313 

Organization

Unit 100 had six sections.[2]: 313–314 

  1. Bacteriological section
  2. Pathological section
  3. Animal Experimentation
  4. Organic chemistry
  5. Botanical, and plant pathology. Poisoning, or infecting, plants with the help of bacteria.
  6. Preparations for bacteriological warfare

Mission

The main purpose of Unit 100 was to conduct research about diseases originating from animals. As most armies were still heavily dependent on horses, the Imperial Japanese Army hoped to find ways to kill them and therefore to weaken military power. Furthermore, they hoped to spread disease via animal carriers. To this end, former members claim that experiments were also conducted with human beings. In practice, Unit 731 was the group tasked with developing biological weapons against humans. Although smaller than Unit 731, Unit 100 was still a large organization. Its annual bacteria production capacity was projected to reach 1,000 kg of anthrax, 500 kg of glanders, and 100 kg of red rust (fungus). The goal was never reached, due to equipment shortages.

Senior Sgt. Kazuo Mitomo described some of Unit 100's human experiments:

"I put as much as a gram of heroin into some porridge and gave this porridge to an arrested Chinese citizen who ate it; about 20 minutes later he lost consciousness and remained in that state until he died 15-16 hours later. We knew that such a dose of heroin is fatal, but it did not make any difference to us whether he died or lived. On some of the prisoners I experimented 5-6 times, testing the action of Korean bindweed, bactal and castor oil seeds. One of the prisoners of Russian nationality became so exhausted from the experiments that no more could be performed on him, and Matsui ordered me to kill that Russian by giving him an injection of potassium cyanide. After the injection, the man died at once. Bodies were buried in the unit's cattle cemetery."

Unit chief Yujiro Wakamatsu ordered Hirazakura to purchase hundreds of cattle and put them to pasture along the Siberian border north-east of Hailar, ready to be infected by airborne dispersion. It was hoped that in the event of a Soviet invasion these infected livestock would mingle with local herds to cause epidemics and to destroy food supplies.

Unit 100 staff poisoned and drugged Russians, Chinese and Koreans with heroin, castor oil, tobacco and other substances for weeks at a time. Some died during the experimentation. When survivors were determined to no longer be useful for experimentation and were complaining of illness, staff told them they would receive a shot of medicine, but instead executed them with potassium cyanide injections. Executions were also carried out by gunshots.[2]: 323 

Capabilities

Unit 100 could produce 1,000 kilograms of anthrax germs, 500 kilograms of glanders germs, and 100 kilograms of redrust germs in a single year.[2]: 329 

Members

Biological warfare agents

The following potential agents were tested:

See also

References

  1. .
  2. ^ a b c d e f g h i j k l m n o Materials on the Trial of Former Servicemen of the Japanese Army Charged With Manufacturing and Employing Bacteriological Weapons. Foreign Languages Publishing House. 1950.
  3. .

External links