Voss Prime (not to be confused with the similarly named planet Voss) is an Imperial Forge World of the Adeptus Mechanicus that is located in the Segmentum Solar of the Milky Way Galaxy. Voss Prime is the closest Forge World to the Hive World of Armageddon, and supplies that strategic planet of the Segmentum Solar with much of their war-machines and war materiel. Voss Prime is also home to the Legio Invigilata, a Loyalist Titan Legion, that is also known as the "Emperor's Guard."