Graia - Recent History: The Forge World of Graia was brought to the brink of utter ruination by the wars its Skitarii fought against voracious Donorian predators. Like so many of its brethren, Graia was once a Forge World cast in Mars' image. However, since the Cult Mechanicus breached the strange portal atop Mount Laochan -- and in doing so triggered a devastating invasion from migrating Donorian Fiends -- the Forge World has been subject to emergency relocation.Its defenders now reside within a geometrically perfect network of geosynchronous void stations that crests the planet like a glittering diadem. Though the Cult Mechanicus does not make it widely known, this so-called "Graian Crown" is capable of independent flight. Giant fusion engines allow it to escape its host planet's gravity and move to the nearest Mandeville Point, where it can then travel through the Immaterium. This has not always met with success, attracting the attentions of Necrons as well as Daemonic foes. Despite the dangers, the Graians continue to use their mobility to better exploit natural resources.The last time Graia attempted this, it was assaulted by an invasion fleet of Necron aircraft that soared up from the Laochan Gate and teleported unliving warriors directly onto the surface of the Graian Crown. Only by sending massed Cohorts Cybernetica on magnetically-controlled space walks did the Graian Tech-priests hold back the foe long enough to effect Warp translation. Though Imperial records currently claim that Graia's priesthood have returned the Graian Crown to circumnavigate their original homeworld, at least one recent Rogue Trader report lists the planet's orbit as strangely empty.The gigantic void stations high above Graia's surface are the only structures left relatively intact. They glitter in the Graian firmament, the carbofibre expressways that lead between them forming the strings of a spider's web that spans half the globe. This lattice of nucleic metropolises and macrofilament tubes writhes in the atmosphere much like a living thing. Graia's Skitarii Battle Maniples constantly patrol its corridors until they are called upon to fight wars of exploration, plunder and data-theft. By retrofitting giant fusion engines to each node, Graia's Tech-priests can transform their domain into a mobile battle station they can settle above any planet they choose to invade.The tenacity of the warriors of this Forge World is legendary, and they are known for their steadfast refusal to give ground. As long as they believe in the integrity of their data-predictions, the coldly logical forces of Graia will continue to pursue their goal, no matter the cost. The synapses of the warriors of Graia are so hardwired to pure logic that enemy psykers often find their powers ineffective against them, unable to breach that wall of absolute rationality.Some attribute this to scrapcode born of war trauma, for when they are in combat, only a binharic imperative from a senior Tech-priest can cause Graia's Skitarii to retreat. Their redoubtable war ethic is seen as a sign of great devotion to the Machine God, though their allies in the Astra Militarum often conclude that their stubbornness is as much a tactical liability as it is an advantage.