Changes

|Image caption= [[Fenris]] is bombarded by the [[Dark Angels]]-led Fleet{{citethis}}

|Date = ~999.[[M41]]{{citethis}}|Location = [[Fenris System]]{{citethis}}|Outcome = Strategic Chaos Victory<br>-[[Sortiarius]] moved into the [[Materium]]<br>-Population of Fenris purged<br>Tactical Imperial Victory<br>-[[Fenris System]] saved but devastated{{citethis}}|Combatant1 = [[Space Wolves]]<br>[[Grey Knights]]{{citethis}}|Combatant2 = [[Chaos]]{{citethis}}|Combatant3 = [[Dark Angels]] Coalition{{citethis}}|Commanders1 = '''Space Wolves:'''<br>[[Great Wolf]] [[Logan Grimnar]]<br>[[Wolf Priest]] [[Ulrik]]<br>[[Wolf Lord]] [[Harald Deathwolf]]<br>[[Wolf Lord]] [[Krom Dragongaze]]<br>[[Wolf Lord]] [[Egil Iron Wolf]](KIA)<br>[[Wolf Lord]] [[Sven Bloodhowl]]<br>[[Bjorn]]<br><br>'''Grey Knights:'''<br>[[Grey Knights Grand Master|Grand Master]] [[Valdar Aurikon]](KIA)<br>[[Brother-Captain]] [[Arvann Stern]]{{citethis}}|Commanders2 =[[Daemon Primarch]] [[Magnus]]<br>[[Ahriman]]<br>[[Daedophet]]<br>[[Omarhotec]]<br>[[Nezchad Aratos]]<br>[[Aarthrat]]<br>[[Daemon Prince]] [[Mordokh]]<br>[[Daemon Prince]] [[Arkh'gar]]<br>[[Daemon Prince]]<br>[[Tzen'char]]<br>[[Daemon Prince]] [[Malyg'nyl]]<br>[[Bloodthirster]] [[Vor'hakk]]<br>[[Chaos Lord]] [[Vykus Skayle]](KIA)<br>[[Dark Apostle]] [[Hekastis Nul]](KIA){{citethis}}|Commanders3 = [[Dark Angels Supreme Grand Master|Supreme Grand Master]] [[Azrael]]<br>[[Space Marine Captain|Captain]] [[Epathus]]<br>[[Iron Captain]] [[Terrek]]<br>[[Space Marine Captain|Captain]] [[Vorr]]<br>[[Space Marine Captain|Captain]] [[Bohemund]]<br>[[Space Marine Captain|Master]] [[Himmaeus]]<br>[[Captain]] [[Epathus]]{{citethis}}|Strength1 = 5 [[Great Company|Space Wolves Great Companies]]<br>[[Kaerl]]s<br><br>1 [[Grey Knights Brotherhood]]{{citethis}}|Strength2 = [[Thousand Sons]]<br>[[Tzaangor]]s<br>[[Alpha Legion]] elements<br>[[Daemon]]ic Legions<br>[[Brotherhood of the Serpent's Eye]]{{citethis}}|Strength3 = [[Dark Angels]]<br>[[Ultramarines]] ([[6th Company (Ultramarines)|6th Company]])<br>[[Iron Hands]] ([[Clan Haarmek]])<br>[[Howling Griffons]]<br>[[Red Consuls]]<br>[[Marines Malevolent]]<br>[[Shadow Haunters]]<br>[[Guardians of the Covenant]]<br>[[Doom Griffons]]<br>and six other [[Chapter]]s<br><br>[[Knights]] of [[House Mortan]]<br>[[Legio Dominatus]]<br>2 [[Imperial Guard]] Army Groups<br>2 [[Imperial Navy]] sub-[[Battlefleet]]s{{citethis}}|Casualties1 = Unknown, heavy|Casualties2 = Unknown, heavy|Casualties3 = Unknown

[[Image:WolvesvsAL.jpg|thumb|right|120px|The Space Wolves battle the Alpha Legion{{citethis}}]]