art by Russ Heath, story by Harvey Kurtzman
Frontline Combat #1 (1951)
This is one of two stories Heath drew for EC, the other one being a Plastic Man parody in MAD several years later. Unlike that one, where he seemed to stick pretty close to Kurtzman's layouts, this has much more of a feel of Heath's own style, then being seen in various war, western and fantasy books at Marvel, and of course later frequenting the pages of DC's war books with long runs as the artist of The Haunted Tank and Sgt. Rock.
I'm not sure how realistic this view of trenches is, but the artwork by Heath is just gorgeous, a real shame he didn't become an EC regular back then, for whatever reason.