Irrv was sent to the waterlessworldCulroon III to subjugate the warring native population. Irrv hoped to pacify the Culroon people by attending a native ceremony with a party of advisors. LieutenantVeers warned him that it could be a trap and advised him to take armored support to suppress any attempt at an ambush. Irrv dismissed the suggestion and ordered Veers to remain confined to base.
Veer's suspicions proved correct when the natives, led by Kloff, launched an attack during the ceremony in which most of the Imperial party, including Irrv's aide, Jeffers, was killed. The battle was turned the Empire's way, however, when Lieutenant Veers disobeyed Irrv's order and attacked the Culroon with AT-ATs. Irrv was irate with Veers, but never got a chance to court-martial him, as he was executed by his commanding officer, CommanderGrath, for not seeing the Culroon charade.