Though Harvey's WarFront ended with #39, there was material prepared for #40...
...which would've taken the strip in a different direction!
Note: Could be NSFW due to racial stereotypes common to the era.
Scanned from the original art, this tale illustrated by George Roussos is so far-fetched that I find it hard to believe Otto Binder scripted it!
Perhaps it was the book's editor, Joe Simon, who had a predilection for really-weird concepts.