The Yomo Council emerged as a splinter group from the Galactic Empire following the events of Operation: Cinder. Their headquarters were located at Fedovoi End, a location housing approximately 500,000 troops along with their families. The Empire's loyalists considered many of the Yomo Council's actions to be acts of treasonous behavior. These actions included their rejection of the Imperial regent supposedly ruling from Coruscant, their defiance of orders issued by Grand Admiral Rae Sloane to reroute resources to the D'Aelgoth sector, and their formation of an alliance with the Shiortuun Syndicate. Consequently, the 204th Imperial Fighter Wing, under the command of Colonel Soran Keize, attacked the Yomo Council's military at Fedovoi End.