Battle of Cassius

The Battle of Cassius was a battle that took place near the planet of Cassius located beyond Pluto's orbit, in the aftermath of the Doctor's defeat of the Dalek's plot to turn occupied Earth into a mobile warship which resulted in the occupation force being crippled. (DW: The Dalek Invasion of Earth) At the conclusion of the battle, the Dalek's solar system blockade was shattered, forcing them to leave Earth. (NA: Love and War)