The Battle of Terra, also called the Siege of Terra or the Siege of the Imperial Palace in Imperial records, is a reference to the final confrontation of the Horus Heresy that raged on Terra in the early 31st Millennium between the Traitor forces led by Warmaster Horus and the Loyalist armies of the Imperium of Man led by the Emperor of Mankind Himself. The Loyalist forces ultimately proved victorious, though only just barely, and Horus was slain by the Emperor on the deck of his massive flagship, the Vengeful Spirit, though the Master of Mankind was mortally wounded and had to be interred within the cybernetic life support mechanisms of the advanced psychic augmentation technology known as the Golden Throne. The outcome of the Battle of Terra shaped the destiny of humanity for the next 10