- You may be looking for Global Command.
Earth Command was the military strategy centre of Earth.
Earth Command led the Earth Empire against the Daleks during the Second Dalek War in the 26th century. One of their priority targets was the Dalek Inquisitor General, known by the Space Service security designation X. After the destruction of the Exterminator and its fleet at Hurala and the apparent death of Dalek X, Earth Command sent a fleet to rescue the prisoners at Arkheon. They also granted Space Major Jon Bowman a full pardon for his previous actions. (PROSE: Prisoner of the Daleks)
In the 40th century, the Tenth Doctor spoke to Earth Command from Myarr. He pretended to be Doctor Vile and claimed the war between Earth and the Mantasphids was his fault. Earth Command circulated Doctor Vile's image across all Earth units, demanding he be located, which he was, on Volag-Noc. (TV: The Infinite Quest)