I love the history, and the sad thing is people never learn from it.
This photo represents indian troops with gas masks - who were positioned on the Macedonian front during the WWI.
This very photo is making me wonder how these men were putting the gas masks - especially when a gas approaches on a windy day to their position. I suppose they just take off the turbans, putting on the masks, and then they put the turbans back - spinning it around the head, while the enemy closing with gas masks on.
