Accidental travel is a pretty normal writing trope one which is used in alternate history every once in a while A Connecticut Yankee in King Arthur’s Court, Guns of the south (not sure if this one was a accidental time travel) plenty others but this. This is something else "popadantsi” is found in Russian works. Mainly propaganda works for the government and the stories within are sure something. Just so you can understand I’d like you to look at this 100% real cover of a book that was really released.

According to a rough Translation this is what I got

MILITARY-HISTORICAL SCI-FI

Victor Dubcek

RED PADWAN

I have not confirmed if permission was granted to use Darth Vader on this cover but I’m leaning no because. Well look at it. Anyways thanks for reading my 2am rant about a weird sub section? I think that’s what you’d call it of alternate history