War of Heaven and the Underworlds

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War of Heaven and the Underworlds
Anvils of the Heldenhammer vs Flesh-Eater Courts 01.jpg
Date Age of Chaos-Age of Sigmar
Location Centered around Shyish
Outcome Ongoing
Free Peoples
Stormcast Eternals (Age of Sigmar)
Legions of Nagash
Nighthaunt (Arcanum Optimar)
Vorrus Starstrike
Lady Olynder
Kurdoss Valentian
Reikenor the Grimhailer
Freeguild Regiments
Nighthaunt Processions
Entire Underworlds
Heavy Heavy

The War of Heaven and the Underworlds refers to the conflicts that have raged between forces of Order allied to Sigmar and the forces of Death allied to Nagash dating back to the beginning of the Age of Chaos.



The alliance between Sigmar and Nagash had been strong during the Age of Myth. Nagash built many settlements with his undead thralls that mortal tribes then inhabited. This helped expand civilizations far faster than they ever could have without each other.[1a]

As the Pantheon began to splinter, Nagash found evidence that Sigmar was withholding souls from Shyish breaking their pact. When Chaos begins it’s incursions into the Realm of Death Nagash draws back the dead to defend his own holdings.[1a][2a]

Once Archaon begins the War of Bones by leading a monstrous host of Daemons, Chaotic Barbarians, Varanguard, and Skaven Nagash waits for his ostensible ally Sigmar to bring relief. When none arrives Nagash is incensed even though he was able to push back most of these invasions at great cost on his own.[1a]

The Amethyst Princedoms and Nagash do answer Sigmar’s to arms at the Battle of Burning Skies but Nagash does not commit his full strength and the Amethyst Princes are mostly slain, Sigmar blames his defeat on Nagash and abruptly declares their alliance over.[1a][1b][2a]

Age of Chaos

At the War for the Allpoints Sigmar had sent for a great host of Azyrite armies to defend the Allpoints in the name of the Pantheon against Archaon’s forces that were already. Nagash’s legions were there as well and as the battle hung in the balance turned against the Azyrites which would set in motion the chain of events that would lead to Archaon’s conquest of the Allpoints, renaming it the Eightpoints.[1a]

Sigmar was enraged by this betrayal and carved a path of destruction across Shyish during which he slays many of Nagash’s lieutenants and heralds before retreating back to Azyr, beginning The Long Wait.[1a][1b]

Nagash becomes consumed with the War of Bones and is unable to prevent Sigmar from stealing the souls of heroes that are rightfully his for the Stormcast Eternals. This further infuriates Nagash who continues construction of his Great Black Pyramid.[1b]

Age of Sigmar

During the Realmgate Wars, it seemed that Nagash and Sigmar might be able to reconcile. Sigmar, though he still despises Nagash for his failure to present himself at the Battle of Burning Skies, recognized that the sent the Hallowed Knights some under Tarsus Bull-Heart to find Nagash and treat with him. After meeting with Mannfred Von Carstein and reaching Stygxx, they found Nagash but were forced to retreat without success while Tarsus Bull-Heart was captured.[1b][3]

Though there were some other signs of warming between followers of the two Gods who inflict a significant defeat upon the forces of Chaos in the Battle of Ossia, and during the founding of Gravewild, Gardus Steel Soul was able to negotiate with Nagash for the land of Gravewild and the return of Tarsus Bull-Heart, these signs were quickly snuffed out during the Battle of Gothizzar when Nagash’s legions failed to provide support and the Shyish Arcway Endgate remained in Chaotic hands.[1b][2a][4]

Meanwhile, Nagash continued building his Great Black Pyramid in his rebuilt Nagashizzar, as it neared completion many seers felt its malign portents. Sigmar, forewarned by Vandus Hammerhand’s dreams, sent an army under his Lord-Ordinators to stop this ritual. When they reach Nagashizzar they find another army sent by the Dark Gods. Unable to control their hatred for each other the two armies fought in the shadow of Nagash’s great citadel. While they fought the Great Black Pyramid was completed triggering the Shyish Necroquake.[5a]

Soul Wars

Stormcast Eternals vs Nighthaunt 01.jpg
Main article: Soul Wars

Following the Necroquake, Nagash declared the Soul Wars in which he claimed all the souls that have died. This includes souls from Chaos, Stormcast Eternals, Idoneth Deepkin, Sylvaneth, and the Daughters of Khaine. To accomplish this Nagash has his Nighthaunt processions attack every major Free City. This leads to the Second Battle of Glymmsforge, the Stormcasts protect the city but the land around it is corrupted with undeath.[2a][5a]

Sigmar responds with the Resurrection Crusade, charging his Lord-Arcanums with fifty five Sacrosanct Chambers to reclaim Shyishan territories lost during the Necroquake and find a way to reverse the flaw of Reforging.[5a]

Tornus the Redeemed also leads several raids upon Nagash’s holdings with his brotherhood of Redeemed. While in Azyr many cowards and traitors are given the God-King’s Brand by the Order of Azyr and Lord-Veritants protecting Azyr against the undead.[5a]