H. Beam Piper - Uller Uprising

Uller Uprising is the story of a confrontation between a human overlord and alien servants, with an ironic twist at the end. Like most of Piper's best work, Uller Uprising is modeled after an actual event in human history; in this case the Sepoy Mutiny (a Bengal uprising in British-held India brought about when rumors were spread to native soldiers that cartridges being issued by the British were coated with animal fat. The rebellion quickly spread throughout India and led to the massacre of the British Colony at Cawnpore.). Piper's novel is not a mere retelling of the Indian Mutiny, but rather an analysis of an historical event applied to a similar situation in the far future. (Summary from John F. Carr's introduction)