What do you expect from people who skin dogs and eat them?
American Indians, maybe?
Did they skin them alive?
Doubtful, Asians are a different breed. My uncle was in the 2nd Marines and landed on 3 D-day islands, he said Japs absolutely would not surrender. He also told me they were very good soldiers. They look at things different and it may be a racial trait. American Indians were noted for cruelty and they are mongol.