The Concord System one introduced in S02Ep11 Broken City and is the setting for Season 2's finale, S02Ep12 The Sons of Eternity. It is a planetary system comprised of six planets all of which cannot support life due to the system's star being used by the Voth and their Dyson sphere, which served as both home to them and repository for the consciousness of Jetan Remsen. It is suggested that the Concord System was assaulted by the Borg early on during the Delta Quadrant's Machine Wars.

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