The clash known as the Battle of Duinarbulon occurred during the Pre-Republic era on the planet Duinarbulon. It was a conflict between the Kingdom of Cron and the pirates commanded by Xer.
As the pirate Xer initiated a swift growth of the Kingdom of Argai inside Cronese territory, King of Cron Ferece requested Xer's presence in Chandaar, the capital city of the Kingdom of Cron. Ferece attempted to convince Xer to swear allegiance, offering noble titles in exchange. Xer pledged to return within a month bearing appropriate tribute. Instead, Xer amassed a considerable fleet at Panna and decisively defeated a Cronese naval force at Duinarbulon. After this engagement, Xer attacked Chandaar, the capital of Cron.