A rebellious group engaged in combat with the revived Sith Empire on the world of Drezzi at some point before the year of 3954 BBY. Ultimately, the Sith gained control of the planet, leading to the execution of the spouse of Queen Ressa from Drezzi. In 3954 BBY, Sechel, a Sith Pureblood, recounted the narrative of Drezzi's demise to the Sith Lord named Scourge.
The 2011 book, The Old Republic: Revan, penned by Drew Karpyshyn, contained an implicit reference to Drezzi's resistance.