An unlikely coalition occurred tonight. The Blood Angels set aside their hatred for the Copper Dragons for a time in an attempt to defend a Blood Angels vassal world of Interria II. The battle was, unfortunately for the defenders, won before it had begun. Already besieged by the Tau, and numbers dwindling, the defenders of Interria were utterly crushed at the arrival of the Eldar. Seizing the opportunity of mutual advantage, they vastly overpowered the beleaguered defenders, wiping them out completely.
Why the Eldar joined the fray, only they will ever know, but forever more will the world of Interria be known as a gravesite for the Copper Dragons.