This is a picture of a French soldier in World War I wearing a gas mask. It is interesting to note that even his dog is fitted with a gas mask just for him. Also notice in the background, there appears to be two men carrying the wounded from the battlefield. I have been enjoying all your comments on the recent photos, and No, there is no particular reason for showing gas mask photos. Today will likely be the last on this topic for a while. I found the pictures interesting. The one with the nurses was probably my favorite.