He was a sergeant in the US Army's First Gas And Flame Regiment. This was a unit that dealt with poison gas and what he went through was absolute hell. After getting a taste of the front line horrors he volunteered for what he thought was an ''engineering detail. It turned out to be a unit working with that God awful stuff and it damn near killed him.
My great-uncle was with the Canadian Expeditionary Forces. He was hit by German machine gun fire on September 2, 1918 while crossing Arras–Cambrai road, during the Battle of Drocourt-Quéant Line (part of the 100 days offensive), and died on the 11th. He's buried in a British military cemetery near Boulogne, France.
“Gas And Flame Regiment “ sounds bad assed.