The Xindi were actually pawns in the Temporal Cold War, as interference in their history began shortly after the ending of their civil war, with the appearance of a trans-dimensional alien race, who guided them to new homelands and resources. The Xindi came to revere these "Guardians", whom they later understood to be the same species as the "Sphere Builders". These aliens were also similarly revered by the Triannon, who believed that deities, who they called "The Makers," constructed the spheres to transform the expanse into a paradise. This led to a devastating religious civil war, as seen in the episode "Chosen Realm".