Yes, the 20th Century Guy Who Survived to the 25th Century returns to the 20th Century...
...(1950, to be exact) to Take On Commies of Various Ethnicities...and Explain What Flying Saucers Are...and Who's Piloting Them!
(Cover by Murphy Anderson and an unknown inker)
This never-reprinted tale illustrated by Ray Chatton, from Toby Press' Buck Rogers in the 25th Century #100 (1950) was done specifically for the comic, unlike Buck's previous comic book appearances, which were newspaper strip reprints.
(BTW, though the book is "#100", it's actually the first issue from this publisher!)
"Korosa" is, obviously, Korea, where the Korean War broke out on June 25, 1950.
It's interesting to note that, in the 25th Century, peace reigns on Earth and there are rocket bases and other facilities in Korosa/Korea!
Plus, the unknown writer apparently wasn't exactly conversant in the concept of time travel...which, even at this stage in science fiction literature, pretty much stated that interference in the "past" usually-resulted in catastrophic rewriting of history in the "future/present" as shown in stories like "A Sound of Thunder" by Ray Bradbury!
(BTW, though the book is "#100", it's actually the first issue from this publisher!)
"Korosa" is, obviously, Korea, where the Korean War broke out on June 25, 1950.
It's interesting to note that, in the 25th Century, peace reigns on Earth and there are rocket bases and other facilities in Korosa/Korea!
Plus, the unknown writer apparently wasn't exactly conversant in the concept of time travel...which, even at this stage in science fiction literature, pretty much stated that interference in the "past" usually-resulted in catastrophic rewriting of history in the "future/present" as shown in stories like "A Sound of Thunder" by Ray Bradbury!