During the '''Geonide Crusade''', the [[Black Templars]] were called upon to help the [[Inquisition]] retrieve vital information and artifacts from [[Geonide]].{{Fn|1}}

The planet housed an [[Imperial]] research facility where members of the [[Adeptus Mechanicus]] worked on projects for the [[Imperial Navy]], such as new propulsion drives and laser technologies. Their research involved classified artefacts and relics; there was a risk of researching heretical subjects. Then, without warning, Geonide faced open rebellion in its cities, taking a heavy toll on the population and the research facilities.{{Fn|1}}

It was discovered that a group of latent [[psyker]]s were tainted by the lies of [[Chaos]]. They opened a rift in reality by using the energies of the [[Warp]]. Within a year, 75% of Geonide's population had fallen to Chaos and formed an army, supplemented by [[daemons]], [[mutants]] and other warp-spawned creatures. {{Fn|1}}

Normal methods for reclaiming the planet failed and the Inquisition called for an [[Exterminatus]]. However, before the world was annihilated, the Black Templars were dispatched to retrieve valuable artefacts, research documents and Imperial personnel that were not tainted by Chaos.{{Fn|1}} ==See Also==*[[List of Anti-Imperial Rebellions]]

*{{Endn|1}}: [https://web.archive.org/web/20060115064102/http://uk.games-workshop.com/spacemarines/blacktemplars-crusades/14/ Games-Workshop - Black Templars Crusades, Games Workshop UKThe Geonide Crusade]''(dated 16 January 2006, last visited 9 June 2023)''