Page 6 - MaterialsTrial-JapaneseArmy-1950

greater secrecy, the area around the cantonment was proclaimed a forbidden zone. The
detachment had its own air force unit, as well as a special proving ground, located near Anta
Station.

Detachment 100 likewise had extensive premises, special equipment and tracts of land for
its use near the village of Mogatong, ten kilometres south of the town of Changchun.

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Detachments 731 and 100 had numerous branches, which were attached to units and
formations of the Japanese Kwantung Army and located in the principal strategical areas on
the border with the Soviet Union. (Vol. 14, p. 29.)

The principal function of these branches was to prepare for the practical employment in
war of the bacteriological weapons produced by the detachments.

The bacteriological detachments and their branches were directly subordinated to the
Commander-in-Chief of the Japanese Kwantung Army.

This is corroborated, apart from the testimony of witnesses and accused, by a secret order
issued on December 2, 1940, by General Umezu Yoshijiro, formerly Commander-inChief of
the Japanese Kwantung Army, on the formation and location of four new branches of
Detachment 731 (Vol. 15, p. 3), which order fell into the hands of Soviet troops in Manchuria
in 1945.

General Yamada, one of the accused in this case, who succeeded Umezu as Commander-
in-Chief of the Japanese Kwantung Army, has also confirmed in his testimony that the
bacteriological units were directly subordinated to him. (Vol. 18, p. 383.)

Describing the functions of Detachment 731, accused Yamada Otozoo testified:

". . . Detachment 731 was formed for the purpose of preparing for bacteriological warfare,
chiefly against the Soviet Union, but also against the Mongolian People's Republic and
China." (Vol. 18, p. 382.) Yamada testified that Japan was conducting preparations for
bacteriological warfare against other states too. (Vol. 18, p. 383.)

Yamada also testified that the activities of Detachment 100 consisted in producing
bacteriological weapons for purposes of bacteriological warfare. (Vol. 18, p. 382.)
Detachment 100, in addition—

"... was charged with the duty of carrying out sabotage measures, i.e., infecting pastures,
cattle and water sources with epidemic germs. In this part of its work Detachment 100 was
closely connected with the Intelligence Division of the Kwantung Army Headquarters...."

The accused Lieutenant General Takahashi of the Veterinary Service, formerly Chief of the
Veterinary Service of the Japanese Kwantung Army, likewise testified that the function of the

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