The Ahakistan rebels functioned as a resistance force situated on the planet of Ahakista. Frustrated with the Imperial-supporting government, these rebels, helmed by their leader Dunlan, sought to depose the existing regime, which ignited a civil war. Unfortunately, Astor, a lieutenant Dunlan heavily relied upon, committed an act of treachery by revealing the location of a rebel safehouse to Darth Vader. Soon after this betrayal, stormtroopers acting under Vader's orders launched an assault, resulting in the deaths of the majority of rebels present, although they did not succeed in killing Dunlan, who was also there. Ultimately, Vader hunted down and assassinated Dunlan at a later time.