Bombardment in Reverse
by Norman L. Knight
Jamie Todd Rubin wrote about this story as part of his Vacation in the Golden Age, and I
got a pdf copy on Thanksgiving Day in 2012. The story tells of two alien nations at
war—a somewhat amateurish was by Martian or Terrestrial standards, but one in which
time-traveling weapons target where the enemy was in the past.
The Nyandrians are attacking Strofander with shells which traverse not only space, but
time as well.
“Bombardment in Reverse” by Norman L. Knight, Astounding, February 1940.