This book was given to me as a gift, and I was glad to get it. I, unfortunately, did not learn much about Unit 731 and Japanese experimentation while I was in school for my history degree. I have read vast amounts of things about the Nazi experiments, and this was only briefly mentioned as an aside. There were some truly horrendous experiments perpetrated on people, which this book delves into. It wasn't as long or as detailed as some of the books that I read about the Nazi aspect, but it was informative. I would like to find some more books about Unit 731.