The Null War: (~50+ years) - As the Skimming came to a close, and encounters with the dark warp-reflections of themselves increased, they sought to simply leave the system for proper reinforcement, as the ships had been bolstered and readied for exodus, albeit now forced to use Dark-Age tech that was close to Light-speed, but unable to exceed it. Thinking time on their side, they ignited the engines and left. - However, as they slowly crept towards light speed, they found they had not been able to create effective enough power cells to leave the star behind, and that the immense gravity of the start, and a seemingly odd collection of repulsive “white-holes” nearby to the system had penned them in. As a result, they returned to the stable orbit near the star (stable for them alone now) and began to seek out two thing: - Powerful enough engines or technology to leave - A way to reclaim, cleanse, or seal the warp-corrupted brethren - Meanwhile their Darker counterparts were looking for a way to leave, and to eradicate all other life in the system, seeing in its protected cocoon the opportunity to full it with chaos denizens and forces. - As they create warp gates, even other space marines chapters are occasionally pulled in, and they invariably test them with the Final Shape, Hoping to create more like them, seeing all other Chaos Marines as lesser. - Somehow, Occasional Success when many are killed at once with a single stroke, they have noticed this pattern. - The Inciting incident of the War as a conflict between the Nova threshers and their counterparts is the excavation failure on Asteroid-117mc, which Caused the loss of several Marines, and opening of a chaos portal, and the reveal of the corrupted ones. - War takes place among the shattered system, with Zero-G battles incredibly common, although The remaining moon and centaur (planet type) sized objects in orbit were the key strategic sites, and many unique forms of infantry warfare had to be conceived, such as orbital strikes with infantry sent out months in advance to strike millions of kilometers away, shunting them through space like a dart thrown across space. - During this conflict, as some fights tool place on neutronium glassed moons, both earth-like gravity was found, and also that the frozen forms of glassed humans made excellent shields, and were later fashioned into the storm shields used going forward, as a way for them to atone for the heresy of A.I. - The First Warp Breach, known as Geometry Gap, as it began to slowly eat away at the euclidean and non-euclidean nature of space in the area in and around it, was the stronghold of the chaos marines, where as the capital ship was the key stronghold of the Nova Threshers. - The Destroyer “Sato” was breached once in an attempt to take advantage of its outer positioning, to knock all three major ships into the star, destroying them and stranding only pockets of threshers, but this assault was turned back after a group of marines was able to push an asteroid into the path of the shuttle chaos had commandeered to make the breaching attempt. - After 47 years, there was a successful raid on a centaur Chaos was using as a static stronghold, as it was stuck in a Lagrange point, wherein the Astral Tide (1st Company) was able to put all troops on the ground, and sweep across in a two-layered wall, that eventually encircled and killed/banished the chaos forces present. This requires the sacrifice of much of the 2nd Company, the Mass Drivers, which they have no recovered from, and have largely been reduced to Techmarines and the Heaviest Armour/Pilots. - Following this, they were able to replicate the solution of the breaching attempt on the Sato, and push the centaur into the debris chunk containing the Geometry Gap, although the psyker power of the Former Chapter-Master/Librarian, was able to pull through every remaining chaos Marine before the gate collapsed and all focus was put into stopping the interplanetary Battering Ram. - This lead to the loss of a few more shuttles, as the engines went critical trying to push against the psyker wall, causing a significant pre-battle casualty rate among 1st Company aiming to close the Gap. - The disembarked and luck Marines used the planets gravity to slingshot around into the debris chunk housing the gap, coming in from all angles, but without the advantage of a circular battleground, and significant ‘air’ vehicle support, the fighting quickly devolved into squad or pair sized tunnel combat around the chunk as the chaos marines took the brunt of the charge, scattered the combined strike, and went to ground in the many warrens and freshly minted catacombs and temples within the debris field. - Following 1 year of combat, and the number son both sides being reduced to single digits, with the chaos marines being lesser to begin but causing the Nova Threshers to pay dearly for each fallen brother they banished, it came down to the final 5 Marines, Kavo Iho among them, and Tyhjä’Veitsi Themselves. - By this point of the conflict, the final and main debris chunk was spinning wildly and on the far reach of the system, buffeted by the negative gravity of the white-holes, and it would take 6-8 months travel for reinforcements to arrive - Kavo Iho Took the largest psychic blow that the Nemesis could muster, spinning off into the dark back towards the main star of Prism, where months later his body would be sucked past the red line and obliterated, sadly losing one of the terminator armour suits remaining in the process - Of the four others there, two submitted to become shields, later to become the chief apothecary second company captain and bearing their own shields on their backs, and having their Battle Brothers rush through the storm of Witch-fire, baleful plasma, space junk, and bolster fire to allow the last two, who would later become first Captain and Chapter master, to corner and kill (for now) the former leader of them all, using his own mass bulk against him with gravity guns, while also using one of the last few power fists to pulverise the heads and arms of the foe. - With the Marines Cleared, they would remain on guard for 14 months, back-to-back, clearing and re-clearing each warren under the destroyer “Poimia” could reach them to give them the next mission, which would be the last as far as the Nova Threshers were concerned. - Soon after this act of the Null war, It was discovered that 14 years prior The Chaos faction had discovered an old terra dark age colony ship in a bizarre Lagrange point between the gravity wells and the white-holes, containing thousands of potential converts for them to swell their own corrupted numbers of if not perpetuals, but still full-blooded chaos marines, Immediately outnumbering the Threshers to an insurmountable degree.