Thanks to Jonathan.

I have a student who is writing about the Korean war and is using her grandfather’s memories. He told her that they had to be careful about using shampoo, soap, aftershave which would be scented. Their companion Korean soldiers told them it made them too ‘smelly and easy to find.’ I know when we go hunting we try to smell like the bush and don’t use nicely scented soap and shampoo. A writer colleague tells me she read that the soldiers in the Vietnam war also were careful about scented stuff. I asked Jonathan about the Marines and Vietnam and if they were careful about this. I thought you all might enjoy his very Marine answer of NO