Dalek Supreme Command

A Dalek Supreme of the Supreme Council represented Dalek Supreme Command. He travelled in a spacecraft (TV: Planet of the Daleks) designated as Councillor-class. (PROSE: The Jeopardy of Solar Proximity)

History
During the 22nd century Dalek invasion of Earth, Dalek Supreme Command ordered that the human rebels were to be crushed. (PROSE: Doctor Who and the Dalek Invasion of Earth)

In the 26th century, a member of the Supreme Council arrived to take command of operations on the planet Spiridon. He exterminated the Dalek Section Leader for its incompetence and ended up stranded after Thals stole his ship, but called for another one. (TV: Planet of the Daleks)

The cure for the Movellan virus was synthesized after Davros' work had been transmitted to Supreme Command. (PROSE: The Secret Lives of Monsters)