@OtterlyAstounding I assume you read the Iris Chang book? I was working in the LMP at the time. It has a huge influence on me at the time of reading. It did bring those events to the world's attention. It was something I was not really really aware of, even though my DF has served right at the end of WW2, but in Europe.
Lamb's recent book from 2020, "Our Bodies, Their Battlefield" is also worth a read as it puts those events in a bigger context. And those things things are well documented even today with Iran, Israel, Russia, Sudan and a myriad of extremist Muslim groups.
It's more than putting people in a "situation". It has to do with dehumanising an enemy, the types of training, the possible punishments and so on. Again, the results are clearly visible with Iran, Israel, Russia, Sudan and a myriad of extremist Muslim groups.