The Great Crusade was a pivotal moment in the history of the Warhammer 40K universe, where the Emperor of Mankind led his vast armies of Astartes (Space Marines) to reunite humanity across the stars.

In the grimdark future of the Warhammer 40K universe ... wouldn’t eventually be brought into the Imperium during the Great Crusade. Fast-forward to the Horus Heresy, and this peace was finally ...