When I saw the above picture, I thought about the scene in the Band of Brothers episode "Crossroads" (which I actually saw last night from DVD), where they charged a Nazi-held position, and they signaled the start of a charge with red smoke.
When I saw the above picture, I thought about the scene in the Band of Brothers episode "Crossroads" (which I actually saw last night from DVD), where they charged a Nazi-held position, and they signaled the start of a charge with red smoke.
Red smoke in Vietnam would get you a 500 pounder or a rocket on your butt if there was anyone above looking for it. Not wise to pop it unless it was planned, but any other color was OK for other purposes.