Supreme Commander

Supreme Commander was a command title held by many species.

Daleks
Davros was the Supreme Commander of the Kaled Scientific Elite. (TV: Genesis of the Daleks) The red-and-gold Dalek Supreme who led the invasion of the Cathedral of Contemplation during the Second Dalek War was addressed as Supreme Commander. (AUDIO: Out of Time) Davros aspired to become the Supreme Commander of the Daleks when he learned his creations followed the Supreme Dalek during the Dalek-Movellan War. (TV: Destiny of the Daleks)

As recorded in the Dalek Survival Guide, there was anecdotal evidence to suggest that one Dalek creature who was originally housed within an Airborne Special Weapons Dalek casing had impressed its superiors to such an extent that it was relocated into a red Supreme Commander casing. The guide also identified Supreme Controller Daleks as being red. (PROSE: Dalek Survival Guide)

Others
Zusa was a Craxon Supreme Commander. (COMIC: The False Planet)

The Warburg was led by its Supreme Commander General Sontar. (PROSE: The Infinity Doctors)

Stabb was the Supreme Commander of 9th Sontaran fleet. (AUDIO: Heroes of Sontar)

Kalendorf became the Supreme Commander of the Earth Alliance fleet. (AUDIO: Dalek War: Chapter One)