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The Milky Way Federation was the primary government of the known galaxy prior to the Deus outbreak. Originally known as the Star Cluster Federation. It was involved in an Interstellar War, perhaps with the immigrant/pilgrimage fleet over the control of Neo Jerusalem and Project Zohar, approximately twenty-five years before the Eldridge incident. It is also possible that the Federation suffered civil war, hence the term "Interstellar" War. The status of the Federation remains uncertain as of the start of Xenogears.