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was an Imperial Japanese Army facility called the Kwantung Army Warhorse Disease Prevention Shop that focused on the development of biological weapons during World War II. It was operated by the Kempeitai, the Japanese military police. Its headquarters was located in Mokotan, Manchukuo, a village just south of the city of Changchun. It had branches in Dairen and Hailar. The Hailar branch was later transferred to Foshan. Between 600 and 800 people worked at Unit 100. Unit 100 had six sections. Bacteriological section Pathological section Animal Experimentation Organic chemistry Botanical, and plant pathology. Poisoning, or infecting, plants with the help of bacteria. Preparations for bacteriological warfare 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.

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Related concepts (3)

Kwantung Army

The Kwantung Army (Japanese: 関東軍, Kantō-gun) was a general army of the Imperial Japanese Army from 1919 to 1945. The Kwantung Army formed in 1906 as a security force for the Kwantung Leased Territory and South Manchurian Railway Zone after the Russo-Japanese War of 1904–1905, and expanded into an army group during the Interwar period to support Japanese interests in China, Manchuria, and Mongolia.

Unit 731

, short for Manshu Detachment 731 and also known as the Kamo Detachment and the Ishii Unit, was a covert biological and chemical warfare research and development unit of the Imperial Japanese Army that engaged in lethal human experimentation and biological weapons manufacturing during the Second Sino-Japanese War (1937–1945) and World War II. It killed an estimated 200,000 to 300,000 people. It was based in the Pingfang district of Harbin, the largest city in the Japanese puppet state of Manchukuo (now Northeast China, formerly named Manchuria) and had active branch offices throughout China and Southeast Asia.

Japanese war crimes

The Empire of Japan committed war crimes and crimes against humanity in many Asian-Pacific countries during the period of Japanese imperialism, primarily during the Second Sino-Japanese and Pacific Wars. These incidents have been described as "the Asian Holocaust". Some war crimes were committed by Japanese military personnel during the late 19th century, but most were committed during the first part of the Shōwa era, the name given to the reign of Emperor Hirohito.