The 'duration' and extent of the War remains unclear. The statement made by Jack Harkness in "The Parting of the Ways" – confirmed by the Doctor – that the Daleks "vanished out of time and space" to fight the War would indicate that it was not waged in normal space-time. Nonetheless, there was fighting on the planet Gallifrey. At some point, however, the conflict engulfed a sufficient bulk of the cosmos for Cass, a character from "The Night of the Doctor", to declare that the Daleks and Time Lords had not yet succeeded in their efforts to destroy it - some of it was "still standing". Several races hostile to the Time Lords, e.g. the Sontarans, wished to participate but were forbidden to do so.