Kwantung Army
The Kwantung Army was responsible for many of the worst Japanese war crimes during World War II , including the sponsorship of Unit 731 which performed biological warfare and human experimentation on civilians and prisoners of war . 
<triplet> Kwantung Army <subj> World War II <obj> conflict <triplet> Japanese war crimes <subj> World War II <obj> conflict <triplet> Unit 731 <subj> biological warfare <obj> field of work <subj> human experimentation <obj> field of work