List examples of questionable Japanese occupation policies in Asia

Japanese occupation might be one of the worst event happened in Asia during that time. A lot of policies were questionable just as follows:

Medical Experimentation - during this time, it is stated that prisoners, especially those Korean captives were injected with something, like sea water for an experiment.

Bataan Death March - this is a very unfortunate and one of the most popular torture policy that happened in the Philippines during Japanese Occupation.