The Battle of Barseg was fought between the Kingdom of Cron of Pirate King Xer and the Three Allied Kingdoms in the Pre-Republic era, on the planet Barseg. Following the defeat of King Ferece, Xer installed himself as the new King of Cron and launched a campaign to take control of the Tion Cluster. After have conquered the complete Kingdom of Cron, Xer attacked a trio of allied kingdoms on his rimward flank: Jaminere, Cadinth and Barseg. After those victories, the Three Allied Kingdoms were integrated into the Xer's Empire.