Page 53 - MaterialsTrial-JapaneseArmy-1950

manufacture active means of bacteriological warfare against the Soviet Union.

The bacteriologists, chemists and veterinary surgeons who constituted the staff of
Detachment 100 engaged in the cultivation of various species of bacteria, in studying their
properties, and in devising methods for the wholesale infection of animals and human beings.
With this object, the detachment conducted experiments to test the action of bacteria and
poisons on human beings and animals.

Being a veterinary surgeon, as a researcher, first in the lst Section of the 2nd Division of
the detachment, and later in the 6th Section of the same division formed in December 1943, I
studied the action of glanders and anthrax germs, engaged in the breeding of these germs, and
took part in devising all sorts of methods of using these germs in bacteriological warfare.

For this purpose, in July-August 1942, I took part in an expedition, called "summer
manoeuvres," in the area of Tryokhrechye. The object of this expedition was to investigate
the possibility of using anthrax and glanders germs under natural conditions approximating to
those in the area of anticipated hostilities—on the frontier of the Soviet Union. During this
expedition, experiments were made in contaminating the river Derbul and water sources with
glanders, and the soil and grass surface with anthrax. The germs for this purpose were
cultivated in a field laboratory and tested on horses, sheep and guinea pigs.

From June 1944 onwards, I was with a group of researchers from Detachment 100 in North
Khingan Province and, on the orders of the Command of the Kwantung Army, conducted
reconnoitring operations for the purpose of gaining information on the whereabouts and
number of cattle belonging to the inhabitants of the districts bordering on the Soviet Union
and the Mongolian People's Republic, on the condition of these cattle, the whereabouts of
summer and winter pastures and hayfields, and the condition of the roads and water sources.
The Japanese Command needed this information in order, in the event of war against the
Soviet Union, to carry out the wholesale infection of cattle as a means of bacteriological
sabotage.

In this group, from June to September 1944, I carried out a number of assignments on the
orders of Captain Asao, and from September 1944 to the day I was taken prisoner (August
1945) I was in charge of this group for Asao had been recalled.

I knew from what I was told by the Chief of Detachment 100, Major General Wakamatsu,
that in conformity with the information I had collected, aircraft were to spray the germs of
glanders, anthrax and cattle plague for the purpose of infecting cattle in the districts bordering
on the Soviet Union and Mongolia in the event of war breaking out.

Concerning the work of my group I made two written reports to Major General
Wakamatsu, enclosing topographical maps giving reconnoitring results (condition of water
sources, pastures, cattle, etc.). On one occasion I made a verbal report on the same subject to
the Chief of the Veterinary Service of the Kwantung Army, Lieutenant General Takahashi
Takaatsu.

Furthermore, I gave information on the work performed to Chief of the Hailar Military

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