The Caedus Wars, or the Caedus War, were a series of wars between the Sith Order of Decreto and the Verseng Empire during the late 190's, early 220's ABY.
Although most of the details of this war are unknown, what is known is that members of the Cult of Darth Caedus, having previously left the Sith Order of Decreto, believed it to be their chance to take what he believed was rightfully theirs; the rule of thee government.