Imperial High Command, commonly referred to as Imperial Command and abbreviated to IHC, was the central command division of the Imperial Military. The cadre was overseen by a Commander-in-Chief or Supreme Commander who were charged with overseeing law-enforcement and the expansionary campaigns of the Galactic Empire, in addition to being briefed on day-to-day basis by the Joint Chiefs and answering only to the Emperor. For most of the Galactic Civil War, Lord Darth Vader occupied the position of Commander-in-Chief, having replaced and executed his predecessor, Grand General Cassio Tagge, for his blunders during the War on Shu-Torun.
Prior to the Battle of Yavin, other prominent members of Imperial High Command included Grand Admiral Thrawn of the 7th Fleet, Director Orson Callan Krennic of the Imperial Weapons Division, Colonel Wullf Yularen of the Imperial Security Bureau and Governor Wilhuff Tarkin - Grand Moff of the Outer Rim Territories,