Dalek invasion of Venus

Whilst under interrogation by Davros during the Genesis Incident, the Fourth Doctor claimed that a Dalek invasion of Venus in Space Year 17,000 was halted by the intervention of a fleet of war rockets from the planet Hyperon. (TV: Genesis of the Daleks) ending their war against the Venusian Colonies. (PROSE: Doctor Who and the Genesis of the Daleks) One historical record stated that this was part of the conflict which followed the Time Destructor Incident in the year 4000. (PROSE: The Whoniverse)