The Battle of Defileron was the second and final battle of the Defileron War. Pitting Emperor Kieran Devaneaux against his maniacal clone nemesis, the evil Demon-Kieran, the Battle of Defileron became a siege, similar to the siege of Earth months earlier. Ending with the death of Demon-Kieran, the destruction of the last Omega particle contained by the Reydovan Empire and the consumption of Defileron itself in the fires of volcanic eruptions, the Battle of Defileron was a turning point in the galactic playing field - cementing Kieran's position, and that of the Empire as a whole.