Kustollia
From Tardis Wiki, the free Doctor Who reference
Kustollia was the home planet of the Kustollons. In 3046, the Kustollons fought the humans of Earth in an "enormous, terrible battle" over disputed territories in the Perseus arm. The humans won using a virus developed from Peter and Charlotte Cobb's research which disabled the Kustollons' biotechnology. The Kustollons' already-ailing empire collapsed and "never truly recovered"; its government growing more militaristic and xenophobic. (COMIC: The Love Invasion)
