Is it still called a “scorched Earth policy” if it doesn’t happen on Earth…and involves genocide? No, of course not. But that doesn’t make it any less of an intriguing fictional construct (emphasis on “fictional”). Case in point, Spencer Ellsworth’s sci-fi novel A Red Peace (paperback, digital), the first book in his Starfire trilogy, in which the last remnants of a galactic empire do an impression of Bender from Futurama by declaring, “Kill all humans!”
