The Ithorian subjugation transpired during the initial years of the Galactic Empire's reign. The rise of smuggling operations in the vicinity of Ithorian territory resulted in the arrival of the Imperial I-class Star Destroyer named Conquest into orbit above the verdant planet. Subsequently, Captain Alima, a figure of opportunity within the Galactic Empire, initiated a blockade of Ithor. Alima's objective was to acquire the classified knowledge pertaining to Ithorian technological advancements. Upon the initial refusal of High Priest Momaw Nadon to comply, Alima commanded that the bafforr forest situated in Cathor Hills be bombarded. The ensuing conflagration led to the demise of thousands of sentient trees. Subsequently, as Alima redirected his weaponry toward Tafanda Bay, Nadon ultimately conceded to his stipulations.
As a consequence of this event, the Ithor Council banished Nadon from Ithor, leading him to reside on Tatooine for several years. Furthermore, the episode spurred numerous Ithorians to secretly offer assistance to the Alliance to Restore the Republic.