| | At least 12 large-scale field trials of biological weapons were performed, and at least 11 Chinese cities were attacked with biological agents. An attack on Changda in 1941 reportedly led to approximately 10,000 biological casualties and 1,700 deaths among ill-prepared Japanese troops, with most cases due to cholera.<ref name="histpersp" /> Japanese researchers performed tests on prisoners with [[bubonic plague]], [[cholera]], [[smallpox]], [[botulism]], and other diseases.<ref>[https://fas.org/nuke/guide/japan/bw/ Biological Weapons Program-Japan] Federation of American Scientists</ref> This research led to the development of the defoliation bacilli bomb and the flea bomb used to spread bubonic plague.<ref>[http://www.centurychina.com/wiihist/germwar/731rev.htm Review of the studies on Germ Warfare] Tien-wei Wu ''A Preliminary Review of Studies of Japanese Biological Warfare and Unit 731 in the United States''</ref> Some of these bombs were designed with [[porcelain]] shells, an idea proposed by Ishii in 1938. | | At least 12 large-scale field trials of biological weapons were performed, and at least 11 Chinese cities were attacked with biological agents. An attack on Changda in 1941 reportedly led to approximately 10,000 biological casualties and 1,700 deaths among ill-prepared Japanese troops, with most cases due to cholera.<ref name="histpersp" /> Japanese researchers performed tests on prisoners with [[bubonic plague]], [[cholera]], [[smallpox]], [[botulism]], and other diseases.<ref>[https://fas.org/nuke/guide/japan/bw/ Biological Weapons Program-Japan] Federation of American Scientists</ref> This research led to the development of the defoliation bacilli bomb and the flea bomb used to spread bubonic plague.<ref>[http://www.centurychina.com/wiihist/germwar/731rev.htm Review of the studies on Germ Warfare] Tien-wei Wu ''A Preliminary Review of Studies of Japanese Biological Warfare and Unit 731 in the United States''</ref> Some of these bombs were designed with [[porcelain]] shells, an idea proposed by Ishii in 1938. |
| | + | Due to pressure from numerous accounts of the bio-warfare attacks, [[Chiang Kai-shek]] sent a delegation of army and foreign medical personnel in November 1941 to document evidence and treat the afflicted. A report on the Japanese use of plague-infested fleas on Changde was made widely available the following year, but was not addressed by the Allied Powers until [[Franklin D. Roosevelt]] issued a public warning in 1943 condemning the attacks.<ref>{{Cite web|title=Biohazard: Unit 731 and the American Cover-Up (Page 5)|url=https://www.umflint.edu/sites/default/files/groups/Research_and_Sponsored_Programs/MOM/b.altheide.pdf|website=[[University of Michigan–Flint]]}}</ref><ref>{{Cite journal|last=Guillemin|first=Jeanne|date=2017|editor-last=Friedrich|editor-first=Bretislav|editor2-last=Hoffmann|editor2-first=Dieter|editor3-last=Renn|editor3-first=Jürgen|editor4-last=Schmaltz|editor4-first=Florian|editor5-last=Wolf|editor5-first=Martin|title=The 1925 Geneva Protocol: China's CBW Charges Against Japan at the Tokyo War Crimes Tribunal|journal=One Hundred Years of Chemical Warfare: Research, Deployment, Consequences|language=en|publisher=Springer International Publishing|pages=273–286|doi=10.1007/978-3-319-51664-6_15|isbn=9783319516646|doi-access=free}}</ref> |
| − | Due to pressure from numerous accounts of the bio-warfare attacks, [[Chiang Kai-shek]] sent a delegation of army and foreign medical personnel in November 1941 to document evidence and treat the afflicted. A report on the Japanese use of plague-infested fleas on Changde was made widely available the following year, but was not addressed by the Allied Powers until [[Franklin D. Roosevelt]] issued a public warning in 1943 condemning the attacks.<ref>{{Cite web|title=Biohazard: Unit 731 and the American Cover-Up (Page 5)|url=https://www.umflint.edu/sites/default/files/groups/Research_and_Sponsored_Programs/MOM/b.altheide.pdf|website=[[University of Michigan–Flint]]}}</ref><ref>{{Cite journal|last=Guillemin|first=Jeanne|date=2017|editor-last=Friedrich|editor-first=Bretislav|editor2-last=Hoffmann|editor2-first=Dieter|editor3-last=Renn|editor3-first=Jürgen|editor4-last=Schmaltz|editor4-first=Florian|editor5-last=Wolf|editor5-first=Martin|title=The 1925 Geneva Protocol: China's CBW Charges Against Japan at the Tokyo War Crimes Tribunal|journal=One Hundred Years of Chemical Warfare: Research, Deployment, Consequences|language=en|publisher=Springer International Publishing|pages=273–286|doi=10.1007/978-3-319-51664-6_15|isbn=9783319516646|doi-access=free}}</ref>
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