Chemical Warfare affected people physically
Chemical weapons caused a lot of physical damage to the body. For example, exposure to mustard gas led to sore eyes, blisters, internal and external bleeding. Mustard gas was in fact one of the worst chemical weapons and required extensive medical treatment.
"I wish those people who write so glibly about this being a holy war and the orators who talk so much about going on no matter how long the war lasts and what it may mean, could see a case - to say nothing of ten cases - of mustard gas in its early stages - could see the poor things burnt and blistered all over with great mustard-coloured suppurating blisters, with blind eyes . . .all sticky and stuck together, always fighting for breath, with voices a mere whisper, saying that their throats are closing and they know they will choke."
-An unidentified allied nurse
Chemical warfare affected people mentally
Not only did chemical warfare affect the person physically, it also affected them psychologically. Soldiers who fought in World War I suffer with depression or war weariness because of the trauma. There were also many deaths from the war, which affected the whole family.