The Hucks in the Philippines did that. They would slither out of camp with a knife and very quietly infiltrate the Japanese entrenchments. Two Japanese soldiers in foxhole. One wakes the next morning and see’s his neighbor with throat slit and his ears gone. Trademark then.
It is disgusting to think about, but so is war.
At times there is no option but war.
LOL. Had a Filipino Master Sergeant at Hood who was 110 pounds of Scary. Demonstrated taking down two big boys simultaneously with eskrima sticks in a few seconds. I stayed on his good side.