![](https://i.dailymail.co.uk/1s/2024/07/18/16/87500911-0-image-a-36_1721317320886.jpg)
Inside Japan's WW2 'horror bunker' where evil scientists cut prisoners open alive in dissection rooms and kept them in ...
In hidden underground laboratories in a field ringed by barbed wire fencing, the Japanese Imperial Army's Unit 731 conducted horrifying human experiments which remained a secret to the outside world for decades. Chinese, Korean, Russian and American …