The Sphere of Galactic Influence represented one of the five distinct Spheres of Influence within the reconstituted Sith Empire, a structure conceived by Empress Darth Acina in the aftermath of the Eternal Empire conquest. This specific Sphere was formed through the merging of the Spheres dedicated to Sith Intelligence and Expansion and Diplomacy, with leadership entrusted to Dark Council member Darth Xarion.
Within the Sith Empire, the Sphere of Galactic Influence served as a center of power, tasked with gathering intelligence concerning both internal and external dangers. Additionally, it managed diplomatic efforts across the galaxy on behalf of the Empire. Empress Darth Acina created it as a means to reduce conflicts among Dark Council members. It stood as one of the five divisions that replaced the previous twelve Spheres of Influence, and was under the command of Darth Xarion.