Barzilla

 was a human-populated planet that Sara Kingdom once used as a decoy to attract a Dalek invasion force, to prevent it from attacking "the Big Four". It had suffered nuclear attack some 2000 years before Kingdom's lifetime, which had rendered the planet less habitable. It was prone to long periods of drought because the nuclear bombardment had permanently changed the planet's weather patterns.

Sara managed to make the semi-barren and largely defenceless world attractive to the Daleks by spreading a rumour that she and the planet's leader, Harker Libra, had discovered a huge vein of gold in one of the planet's mines. This rumour got back to the Golden Dalek though one of the Daleks' humanoid spies. Because the Daleks saw the acquisition of wealth a valid route to power, they were easily tempted to divert to Barzilla — only to discover that the SSS had laid a effective trap for them. The entire Dalek fleet was annihilated. (DAN: The Outlaw Planet)