- "It's time to start over. That is our first order. To begin again. And to get it right, this time."
"Yes, of course, Grand Admiral. Anything you need. Glory be to Grand Admiral Sloane."
"No. Glory goes only to the Empire."
- ―Rae Sloane and Brendol Hux
After the Imperial defeat at Battle of Jakku in 5 ABY, Grand Admiral Rae Sloane consolidated what remained of her forces and those that managed to survive the engagement before retreating into the Unknown Regions. There, the grand admiral would use what remained of the fractured military to sieze control of Imperial holdings in the Unknown Regions, effectively establishing an Imperial remnant of her own. The Remnant was established using a modified version of the Contingency, which was a plan set forth by Emperor Palpatine in the event of his death, which would involve the disassembly of the Empire. The plan was to initially be carried out by Counselor Gallius Rax, a former fleet admiral and advisor to the emperor. After his murder at Jakku, carried out by Grand Admiral Sloane herself, the plan was altered by Sloane in order to better fit how she envisioned what the Empire could become.
Using coordinates taken from Rax, Sloane departed from known space in the company of Commandant Brendol Hux, his illegitimate son Armitage, and a group of child soldiers. Shortly afterward, the centralized government of the Galactic Empire was officially dissolved when Grand Vizier Mas Amedda signed the Galactic Concordance, a peace treaty that marked the end of the Galactic Civil War. Although the government had been disbanded, various Imperial remnants rejected the treaty and continued to fight the New Republic. Despite this, the Imperial Remnant in the Core Worlds and the Inner Rim respected the conditions of the treaty and kept all forces within its new, predetermined borders.
Grand Admiral Sloane and what remained of the old Shadow Council refused to choose between submitting to the terms of the treaty or continuing to fight a losing war, believing it best to withdraw all forces deep into the Unknown Regions to start anew. Rax's coordinates, which relied on hyperspace routes charted by Mitth'raw'nuruodo, one of her fellow grand admirals, led Sloane to the location of the Eclipse, a Super Star Destroyer hidden in deep space. After discovering the warship, Sloane began to use what resources that she had to further colonize the Unknown Regions. The fact that the Unknown Regions remained largely unexplored was seen as an additional benefit by the Grand Admiral; unlike the rest of the galaxy, the Unknown Regions would have never known of a time without an Empire. Nevertheless, Sloane was considerably worried by the prospect of recreating the Empire, a task which she viewed as the beginning of her struggle.
- Aftermath: Empire's End (First appearance)