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Originally set up by the military police of the Empire of Japan, Unit 731 was taken over and commanded until the end of the war by General Shirō Ishii, a combat medic officer. The facility itself was built in 1935 as a replacement for the Zhongma Fortress, a prison and experimentation camp.
Prior to 1946 Japan carried out many attacks using weapons of mass destruction (chemical and biological), principally in China. In 1995, members of the Japanese religious cult Aum Shinrikiyo released chemical weapons in Tokyo in a domestic terror attack.
Mar 25, 2018 · Background. Unit 731 was established first in 1932 as a small group of five scientists interested in biological weapons, and was expanded around 1936 when Shiro Ishii was given full command of the unit.
Established for the purpose of developing biological and chemical weapons, Unit 731 exceeded by a year the duration of the Third Reich. While biological and chemical weapons were not new to warfare, Japanese testing on human subjects was unparalleled even by the Nazis.
While the United States had developed plans for an air campaign against Japan prior to the Pacific War, the capture of Allied bases in the western Pacific in the first weeks of the conflict meant that this offensive did not begin until mid-1944 when the long-ranged Boeing B-29 Superfortress became ready for use in combat. [23]
Nov 28, 2017 · From 1937 to 1945, the military services of Japan used chemical weapons on over 2000 occasions, primarily in the China Theater of Operations. In contrast, there were only a few occasions of use against Allied forces in the Pacific. The primary reason for this great disparity in incidents of use was Japan’s fear of retaliation in kind.
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Nov 18, 2009 · On August 6, 1945, during World War II (1939‑45), an American B‑29 bomber dropped the world’s first deployed atomic bomb over the Japanese city of Hiroshima, immediately killing 80,000 ...
