Before 16,899 BBY, sometime before the genesis of the terentatek, the Sith of the Sith Empire found themselves engaged in a conflict where they began utilizing different types of warbeasts for the first time in their military efforts. These creatures included the silooth, the Sith warbird, and the Sith war behemoth, all deployed to bolster their war effort. A notable event during this war was the Battle of Kalsunor, where the Sith unleashed vast numbers of mutated silooths upon the planet of Kalsunor, resulting in widespread devastation. After the Discovery of Korriban in 6900 BBY, the Jen'jidai Sorzus Syn documented the war in her chronicle, which Darth Sidious later compiled into his Book of Sith.