no writing on photo unknown location or year taken 

Japanese soldiers  with early type 30 bayonet

Japanese kamikaze commando of the Giretsu Kuteitai armed with a type 100 submachine gun, may 1945


type 100 submachine gun

Japanese soldiers shooting blindfolded Sikh prisoners.
 This happened in Singapore, shortly after the British surrendered. Those poor Indian soldiers, blindfolded, were used as target practice, with white cards placed on their chests, where the heart was located.

If bullets failed, they were bayoneted.