The primary operational base for the Eyttyrmin Batiiv pirates was a stronghold they possessed on the planet Courkrus, located within the Khuiumin system. As the Battle of Khuiumin unfolded, several pirates fell back to this stronghold, intending to mount a final, desperate defense against the invading Imperial troops. Following the pirates' defeat in orbit, the Crusader, a Victory-class Star Destroyer, obliterated the stronghold with a volley of concussion missiles a day later.