The image shows a group of Japanese soldiers using POW in Singapore for their target practice. You can see each prisoner have a marker hanging over their heart and stakes in front of them marked with a number. They are blindfolding by the soldiers and probably praying before they die. Later, if any of the prisoners are still alive through the horrific practice, they will end up shooting with a pistol at the end by the officer in charge for them. POWs who had weak conditions in the camp were often taken away from the camps to shooting range by the new Japanese soldiers where the prisoners would be used as targets.