The Wookiee–Trandoshan War was a major conflict involving the Wookiees and Trandoshans. It began when the Trandoshan warlord Crahiskk brought an invasion force to Kashyyyk in an attempt to subjugate the Wookiees and sell them as slaves. The Jedi Order was informed of the insurgency and dispatched Zorin Durandu along with his apprentices Dahs Chee and Hish'Pash.
Though the Sith had no direct involvement in this war, a rogue Bpfasshi Ashij Daa joined the war as a neutral combatant, causing chaos and destruction amongst both sides.