All I can say is,wow. I didn’t know any of the details but I would like to see it someday. My grampa was gassed in WWI. He suffered sinus problems till death in ‘78. He fought the Turks and had his leg half shot off. I didn’t know that until one day our family was camping and he wore shorts. He had a big crater in his calf. I’m glad that he told us stories of that war and have passed them down to my son’s.
On my dad’s Canadian family side a great-great-uncle was gassed. He was badly affected and died shortly after the war, I think in 1920.