*The [[Jorun Retaliation]] (143.[[M41]]): En route to the [[Gothic War]] an Imperial Battlegroup, the '''15th [[15th Heraklion Ironclads]]''', turned on their [[Commissariat]] attachment and went renegade. Investigations into this turn of events uncovered the foul [[xenos]] taint of [[Dark Eldar]], who had managed to ensnare and corrupt General [[Jorun]] and his command structure. Jorun and his fleet raided planet after planet, enslaving whole populations for their masters. The full [[Howling Griffons]] chapter was given command of the strike force, with support from the [[Ultramarines]] and Sons of Orar chapters. {{Fn|2}}