Never Sound Retreat (The Lost Regiment #6)

It has been 10 years since a group of American Civil War soldiers was swept away from the battlefields of Earth to a distant world--where the only place for a human is as a slave to an alien race. But even though they are far from home, the members of the Union 35th Main regiment still embody the radical ideas of democracy and freedom--and they're willing to lay down their lives rather than sound retreat! Ads in "Locus".