From Lexicanum

Planetary Summary

Map	Basic Data		Planetary Image
	Name:	Gehenna Prime
	Segmentum:	Unknown
	Sector:	Unknown
	Subsector:	Unknown
	System:	Gehenna
	Population:	Unknown
	Affiliation:	Imperium
	Class:	Hive World
	Tithe Grade:	Unknown

Background

Gehenna Prime is an Imperial hive world which has seen a fair amount of action in its existence. It was infiltrated by Genestealers under the guise of the Cult of the Emperor's Light. Apparently from there the cult had eventually infiltrated the entire Gehenna system, and were finally destroyed by a force of the Space Wolves.

Gehenna Prime was also the site of an Ork invasion. During the war most of the Orks besieging the hive world's capital hive were drawn off by Imperial Guard armored companies under the command of Colonel Born Tahal. This allowed Imperial reinforcements to land at the capital and break the siege a few weeks later.

Tahal's adversary was the Ork Warlord Hargluk, the commander of the entire invasion. The Imperial army consisted of Legio Metalica Titans supported by Blood Angels Space Marines.

Sources

• Warhammer 40,000: Wargear, background fiction
• Titan Legions (Epic), The Fires of Gehenna
• White Dwarf 179, Inferno battle report
• Codex: Space Wolves (2nd Edition)