The Second Sith Civil War, also known as the Second Decreton Civil War was a major galactic conflict within the Sith Order of Decreto between the followers of Darth Abeonis and a number of rebel Sith Lords and Knights lead by an unidentified Sith Lord.
The Sith Civil War was, so far, the only doumentated conflict in which a single livewire administration system fought on both sides, albeit in two seperate forms.