2150s Dalek invasion of Mars

The Dalek invasion of Mars occurred in 2157. (PROSE: GodEngine, Beige Planet Mars)

It saw the Daleks destroying the Martian city of Marventos as well as creating Robomen. The Martian government held on long enough for the Minister of Space Defence, Zavarim L., to issue a "Dalek Defence Drill" poster advising his citizens on how to best survive. (PROSE: What To Do If A Dalek Attacks You!)

While being interrogated by Davros in an agony seat, the Fourth Doctor recounted that on Mars, the Daleks were defeated by a virus that attacked the insulation on the cables in their electrical systems. (TV: Genesis of the Daleks)

Behind the scenes

 * According to non-narrative information in DWBIT 49, the Daleks invaded Mars while on their way to Earth. Colonists fought back and, with the help of the Ice Warriors, created a virus which ate away at Dalek cable insulation. The Dalek forces were driven away from the colony and decided just to focus on the Earth.