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Hecuban Conformity
From Warhammer 40k - Lexicanum
The Hecuban Conformity was a separatist human realm, that was defeated by the 81st Expeditionary Fleet in the Aegisine War, during The Great Crusade.[1]
After their compliance, the Conformity forged the battleship Halcyon for the Imperium, as a sign of penitence and tribute of fealty.[1]