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Fortress World

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"Fortress worlds are a fine source of soldiers, owing to necessarily large defence forces, which are typically trained and equipped to the high standards of the Imperial Guard. Fortress Worlds are a valuable asset not only because of their significance as strategic bastions, but also because they can serve as a readily available source of skilled, disciplined fighting men, and it is a rare fortress world that does not raise its armies with the expectation that they may be called upon to serve the Imperial Guard."
— Extract from the Tactica Imperialis
Fortress World

A Fortress World of the Imperial Guard

A Fortress World is a type of planet within the Imperium of Man that serves as a bastion of the Imperium's defence against some constant and persistent threat to Imperial space. These worlds are extremely well-defended, usually with large numbers of Imperial Guard regiments and Imperial Navy assets, and their populations and economies are wholly geared towards meeting the demands of Imperial defence. Unfortunately, not all Fortress Worlds are controlled by the Imperium, as several have fallen to the control of the Traitor Legions. The most famous Fortress World in the Imperium is Cadia, which defends the Cadian Gate, the only stable passage through the Warp from the Eye of Terror into open Imperial space, from the constant assaults of the Forces of Chaos and Abaddon the Despoiler's Black Crusades.

Life on a Fortress WorldEdit

Fortress worlds are uncommon, but necessary, planets. They are established to act as military strongholds, staging points, and physical deterrents. Worlds like these are as much “roadblock” as they are bastion; they are often established on habitable planets and built up for warfare. Linked together, they are able to form blockades used to interdict the enemy and prevent them from spreading out into the Imperium. Life on a fortress world is steeped in military discipline and doctrine. From the moment the citizens wake until they go to sleep they train and operate as a military unit. All citizens of fortress worlds prepare for the day they are called upon to push back the darkness that sits beyond their crenelated walls. Cities are giant fortresses studded with artillery weapons, and industry is focused almost exclusively on manufacturing machines of war. Those old enough to enlist in the Imperial Guard or Planetary Defence Forces are often required to do so, and even those too young or infirm find ways to serve. It’s not uncommon to have whole generations of a family in service to the Imperium at one time, and many such Imperial Guard regiments boast a rich and proud history.

Fortress Worlds Armed ForcesEdit

Soldiers from fortress worlds have been raised to serve in war, and by the time they reach maturity, they are well-versed in the arts of war and the doctrines of the Tactica Imperialis. Each has been long trained to destroy the enemies of the Imperium, particularly those whose threat forced their world to be fortified in the first place. Fortress worlders are disciplined, honourable, loyal, and with the highest regard for integrity, and each is already a proficient combatant long before they are taken to serve in the Imperial Guard.

Notable Fortress WorldsEdit

Planet Name Segmentum Sector Sub-Sector System Population Affiliation
Boros Prime Segmentum Obscurus Unknown Boros Gate Boros System Unknown Imperium of Man
Brigannion IV Segmentum Obscurus Eye of Terror Unknown Unknown Unknown Chaos (Iron Warriors)
Burjan's World Unknown Mitre Gulf Unknown Unknown Unknown Chaos (Iron Warriors)
Cadia Segmentum Obscurus Cadian Sector Cadian Sub-sector Cadian System 250,000,000 Imperium of Man
Castellax Unknown Unknown Unknown Unknown Unknown Chaos (Iron Warriors)
Coronis Agathon Segmentum Obscurus Unknown Unknown Unknown 120,000,000,000 Imperium of Man
Forgefane Segmentum Tempestus Unknown Unknown Unknown Unknown Chaos (Iron Warriors)
Jago Segmentum Pacificus Sabbat Worlds Rimward Trailing Jago System Unknown Imperium of Man
Kasr Partox Segmentum Obscurus Cadian Sector Cadian Sub-sector Cadian System Unknown Chaos (Iron Warriors)
Khirab (Dead World) Ultima Segmentum Unknown Unknown Unknown N/A Imperium of Man (Formerly)
Kormarg II Unknown Sakkara Sector Unknown Kormarg System Unknown Imperium of Man
Lutoris Epsilon Unknown Unknown Unknown Unknown Unknown Forces of Chaos
Malodrax (Dead World) Unknown Unknown Unknown Unknown Unknown Chaos (Iron Warriors)
Medrengard (Also Daemon World) Segmentum Obscurus Eye of Terror Unknown Unknown Unknown Chaos (Iron Warriors)
Morlond Segmentum Pacificus Sabbat Worlds Erinyes Cluster Morlond System Unknown Imperium of Man
Mortain (Destroyed) Unknown Unknown Unknown Unknown N/A Imperium of Man
Mortrex (Dead World) Ultima Segmentum Unknown Unknown Unknown N/A Imperium of Man (Formerly)
Sebastus IV Unknown Unknown Unknown Unknown Unknown Imperium of Man
Spite Ultima Segmentum Jericho Reach Canis Salient Unknown Unknown Imperium of Man
Surngraad Ultima Segmentum Unknown Unknown Unknown Unknown Imperium of Man (Formerly)
Sybari (Dead World) Ultima Segmentum Unknown Unknown Unknown N/A Imperium of Man (Formerly)
Talasa Prime (Inquisition Fortress-World) Ultima Segmentum Unknown Unknown Unknown Unknown Imperium of Man (Inquisition)
Titan (Inquisition Fortress-World) Segmentum Solar Sol Sector Sector Solar Sol System Unknown Imperium of Man (Inquisition/Grey Knights Chapter)
Wrath Ultima Segmentum Jericho Reach Canis Salient Unknown Unknown Imperium of Man

SourcesEdit

  • Codex: Eye of Terror (3rd Edition), pp. 5, 11, 24, 37
  • Codex: Grey Knights (5th Edition), pg. 40
  • Codex: Tyranids (5th Edition), pp. 10, 60
  • Codex: Space Marines (5th Edition), pg. 91
  • White Dwarf 287 (UK), pg. 38
  • Only War: Core Rulebook (RPG), pg. 59
  • Rogue Trader: Into the Storm (RPG), pg. 11
  • Index Astartes I - Warriors of Iron, pg. 56
  • Grey Knights (Novel) by Ben Counter
  • The Siege of Castellax (Novel) C.L. Werner
  • Warhammer 40,000 Rulebook (6th Edition), pg. 175
  • Imperial Armour Volume Ten - The Badab War - Part Two, pg. 135


Worlds
General Dead WorldDeath WorldDesert WorldIce WorldJungle WorldOcean World
Imperium Adeptus Astartes HomeworldAgri-WorldCardinal WorldCemetery WorldCivilised WorldFeral WorldFeudal WorldForbidden WorldForge WorldFortress WorldHive WorldIndustrial WorldKnight WorldMining WorldParadise WorldPenal WorldResearch StationShrine World
Chaos Daemon World
Xenos CraftworldCrone WorldExodite WorldMaiden WorldOrk WorldTau EmpireTomb WorldXenos World

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