The Battle of Amarin was fought between the Kingdom of Cron of Pirate King Xer VIII and the Back Spiral in the Pre-Republic era, at the planet Amarin. Following the defeat of King Ferece, Xer installed himself as the new King of Cron and launched a series of campaigns to take control of the Tion Cluster. After have conquered the complete Kingdom of Cron and defeated the Three Allied Kingdoms and eventually the Back Spiral, Xer's Empire reached its greatest extend. However, one power managed to stand against the Pirate King: the Livien League. Xer VIII tried to defeat it but he was defeated at Amarin.