This combative entry spans conflicts of all sizes.
Man, I initially read that wrong. Gotta get my head our of the gutter before Golden Age Batman punches my lights out.
A strange quirk of "One Panel" is that odd panel layouts get strangely cropped out, as with this futuristic aerial battle.
But this is the one I love most of all. Though comics historians are forced to "title" the story "War" because it appears in the first panel, it's really just the first word of a prosaic passage spanning four panels, and at the same time, a simple but impactful declaration of the story's context. It's bold and exciting in its minimalism.