Unit Ei 1644
Unit Ei 1644
Japanese biological warfare facility (1939–1945).
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Readers' pathsAug 2026 – Oct 2026
Readers go next to
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Unit 731
Japanese biological and chemical warfare research facility (1936–1945).
20%
Shirō Ishii
Japanese biological weapons specialist (1892–1959).
18%
Epidemic Prevention and Water Purification Department
Department of Imperial Japanese Army.
17%
Shunji Sato
Japanese officer, war criminal 1896-1977.
15%
Vivisection
Experimental surgery.
12%
Nanjing
Capital of Jiangsu, China.
7.3%
Khabarovsk war crimes trials
1949 Soviet hearings of Japanese bacteriological warfare.
3.2%
Bubonic plague
Human and animal disease.
1.7%
Second Sino-Japanese War
1937–1945 conflict in East Asia.
1.2%
Biological warfare
Use of strategically designed biological weapons.
1.1%
Readers come from
Share of the 4,369 readers arriving from another article
Unit 731
Japanese biological and chemical warfare research facility (1936–1945).
60%
Ningbo plague attack
Event in Second Sino-Japanese War.
17%
Japanese war crimes
War crimes committed by the Empire of Japan.
6.1%
Epidemic Prevention and Water Purification Department
Department of Imperial Japanese Army.
4.1%
Unit 9420
Disease Research Unit of Japanese Army.
0.85%