The Third War for Armageddon that began in 998.M41 was a massive conflict between the Imperium of Man and the largest Ork WAAAGH! ever raised, led by the Greenskin Warlord Ghazghkull Mag Uruk Thraka. The war was fought on the Hive World of Armageddon where Ghazghkull Thraka had launched his first attempt to seize the planet exactly 57 standard years before. The conflict eventually drew in portions of over 25 Space Marine Chapters, dozens of Imperial Guard Regiments, several Titan Legions and caused immense destruction to Armageddon before essentially ending in an extremely narrow Imperial victory, though neither the Imperial nor Ork forces were able to secure complete control over the contested world and fighting is still ongoing in many regions.