Firestorm: David Sherman and Dan Cragg

Book XII of Starfist. The Fleet Initial Strike Team (FIST) is up against a full-fledged rebellion on Ravenette and a lethally loose cannon of a commanding officer. Desperate to thwart unrelenting aliens and their quest to obliterate humankind, the Confederation has beefed up its defences, but to the citizens on the outer edges of Human Space around Ravenette - unaware that a deadly enemy even exists - the government's move seems oppressive and ten planets respond with a war of secession.