The Wars of Apostasy or the Terran Crusade was a series of battles and military campaigns fought against the forces of the Renegade High Lord of Terra Goge Vandire during the Age of Apostasy's Reign of Blood in the fourth century of the 36th Millennium by the Emperor of Mankind's Loyalists. During this tumultuous period, the Black Templars had concerned themselves little with the affairs of the Imperium, but when Crusade fleets returned to the Segmentum Solar and discovered that their Chapter keeps had been destroyed by orbital bombardments, the full extent of Vandire's treachery became apparent. Enraged by what they discovered of Vandire's perversion of the Emperor's will, in 378.M36 the Black Templars Chapter's High Marshal Sigenandus declared a Crusade to be launched against Vandire on