The military has ever been one of the structural supports of much American science fiction. Whether they’re heroically battling off alien invaders or corrupting scientific research for their nefarious and war-mongering needs, the boys in green have a long history in the genre.
That’s why it’s particularly interesting whenever you run across a science-fiction writer who actually served in the military and then brought that sensibility to their writing. The responses can vary widely, from the jingoistic Reagan-era militarism of Jerry Pournelle to the ironic action of David Drake to the highly satiric and jaundiced Kurt Vonnegut.
Over at i09, Charlie Jane Anders does a superb job of studying all of the ways these authors brought their experience of war to bear in their fiction, as well as other fantasy and sci-fi authors who were less vocal about their military service (from Tolkien to Clarke).