The 612th Attack Battalion served within the Grand Army of the Republic, commanded by Commander Ganch. This battalion was initially under the command of Jedi Master Bolla Ropal and frequently collaborated with Ropal's Padawan, Tyzen Xebec. Following Bolla's demise, the battalion's command was transferred to Jedi General Keelyvine Reus, who was also Tyzen's new Jedi Master.