Mothership

During the Imperial-Renegade Dalek Civil War, the Imperial Daleks were led by a mothership commanded by the Emperor Dalek, Davros. At the climax of the Shoreditch Incident, the mothership was destroyed by the Hand of Omega, though Davros survived using an escape pod. (TV: Remembrance of the Daleks)

As part of the Slitheen family's attempt to start World War III on Earth in 2006, Jocrassa Fel-Fotch Passameer-Day Slitheen, disguised as Acting Prime Minister Joseph Green, claimed that the United Kingdom stood directly beneath "the belly" of an alien mothership. (TV: World War Three)