Chapter 18 Note 2 History of Bacterial Warfare Forces

September 18, 1931: The Liutiao Lake incident occurred and the Manchurian Incident (the "September 18th Incident") was launched.The Japanese army occupied Shenyang.Shiro Ishii advocates the creation of a germ warfare unit. May 15, 1932: The "May 15th" incident occurred, and Prime Minister Inuyang was assassinated. August 1932: The Anti-epidemic Research Office was set up in the Army Medical School. 1933: The Kwantung Army's anti-epidemic squad was established in Beiyinhe, code-named "Kamao Troops". August 1935: Lieutenant General Aizawa assassinates Nagata, Director of Military Affairs, in the Army Ministry.

February 1936: The "February 26" incident occurred. August 1936: The Kwantung Army Epidemic Prevention Squad was reorganized into the Kwantung Army Epidemic Prevention Department. July 7, 1937: The Marco Polo Bridge Incident occurred, and the Sino-Japanese War expanded. May 1938: Labor Day celebrations are banned in Japan.Promulgation of the National General Mobilization Law. June 13, 1938: A military special zone was designated in the area around the bungalow. 1938-1939: The Epidemic Prevention Department of the Kwantung Army was stationed near Pingfang in Binjiang Province for construction (centered on Santun, Situn, and Wutun, about 20 kilometers away from Harbin).The facilities of the third department and the diagnosis and treatment department were left in Binjiang as the "South Building". After the stationing was completed, the code name was changed to Dongxiang Troop.

May 1939: The Nomonkan incident occurred. June-October (early ten days) 1939: Bacterial warfare was carried out near Heihe during the Nuomenkan incident.Ikari Changzhong and other 22 people polluted the river. September 1, 1939: Germany begins its invasion of Poland, beginning World War II. May-June 1940: Bacterial warfare in the Ningbo area of ​​eastern China. June 1940: Italy declares war on Britain and France. July 26, 1940: Issued Kwantung Army Combat Order C Order No. 659. August 1940: Reorganized as the Kwantung Army Epidemic Prevention and Water Supply Department. September 1940: Japan, Germany, and Italy signed a treaty of alliance.

December 2, 1940: The Kwantung Army's epidemic prevention and water supply unit was established, and the Pingfang area facility became the headquarters.Mudanjiang Detachment (Hailin) ​​Linkou Detachment (Linkou) Sun Wu Detachment (Sun Wu) Hailar Detachment (Hailal) April 1941: Japan and the Soviet Union signed a neutrality treaty in Moscow. July 1941: A special Kwantung Army exercise was held, and 700,000 troops were assembled in Manchuria (Northeast China). Summer 1941: According to the Kwantung Army's Combat Order C Order No. 659, Ota Sumori sent 40 to 50 people to conduct germ warfare in the Changde area in central China.

August 1941: The code name was changed to: the headquarters is Manchurian Unit 731; Mudanjiang Detachment is Manchuria Unit 643; Linkou Detachment is Manchuria Unit 162; Sun Wu Detachment is Manchuria Unit 673; Hailaer Detachment is Manchuria Unit 543 December 8, 1941: Japan declares war on the United States and Britain, launching the Pacific War. July 1942: Masaji Kitano succeeded Ishii as commander of Unit 731. August 13, 1942: Lieutenant General Ishii led 50 to 100 people to carry out bacterial warfare when the Japanese army retreated during the Zhejiang-Jiangxi Operation. September 1943: Italy announces its unconditional surrender.

October 1943: Japan 731 established the Anda special experimental field. February 11, 1945: The Yalta Agreement is signed. March 1945: Ishii Shiro returned to the post of commander of Unit 731. May 1945: Designation changed to Manchurian Unit 25202. May 1945: Germany unconditionally surrenders. July 1, 1945: The important equipment of Unit 731 began to evacuate to Tonghua. August 9, 1945: The Soviet Union declared war on Japan, and the troops were ordered to disband. August 2-5, 1945: The headquarters and branch of the army destroyed themselves, leaving some key personnel behind in the middle of the night, and all the staff of the headquarters fled in a covered van.

August 15, 1945: The war ends. The distribution of force strength at the end of the war: Headquarters: Lieutenant General Shiro Ishii and other 1,300 people; Mudanjiang: Masao Onue and Major Commander 200 people; Linkou: Major Hideshi Sakakibara and other 226 people; Then Shao Zuo and other 226 people.