The Split are a humanoid alien race in the X Universe. They are a warrior race ruled over by a dominant family. About 450 years before the events of X: Beyond the Frontier, the Split Dynasty had destroyed most of the Boron colonies, forcing them back to Kingdom End. The Argon Federation helped the Boron repel an attack on their home world and officially enter the war themselves. The Paranid Empire sent ships to supplement Split warships in an attack on Argon Prime. This war is known as the Boron Conflict.