Since the beginning of time, the angels of the High Heavens and the demons of the Burning Hells have endlessly warred for dominion over all existence in what is referred to as The Great Conflict. The motivation of the battles are unclear, as the sides seek only to conquer each other. This dilutes the sense of good and evil, though later events show demons to be ruthless and cruel. Neither side has ever fully crushed the forces of the other, and it is a struggle bound to last through all time.
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| Diablo III Cover |
Eventually, dissent grew in members of both sides of the eternal battle. Demons and angels who questioned the incessant chaos banded together and created an entirely new plane of existence, which they named Sanctuary. This crudely designed world, a jumbled mix of climates, was quite literally a sanctuary away from the eternal war of the High Heavens and Burning Hells. The existence of this new world was kept secret from the battling forces, who would only destroy it or use it for the purposes of the war.
