Donatos Primus - History: Before the dramatic events of the Donatos War, the world of Donatos Primus had faced its fair share of workers' strikes and other petty revolts, but they had remained a purely internal matter. In fact, small-scale rebellions were so common on Donatos that the Adeptus Mechanicus had deemed it fit to secure its vital supply chain by granting the world a series of extensive fortifications, locally known as the Adamant Citadels.Designed both to repel invaders from space and on the ground, it was ultimately the rebels' ability to knock out these fortifications that led Donatos Primus' latest rebellion to grow into what was called the Donatos Uprising, a global planetary revolt that also spread to parts of the Donatosian Planetary Defence Forces. With the Adamant Citadels still functional and in Imperial hands, even the scale of the revolt -- though sizeable -- did not disturb Lord Governor Gnossul, who hoped to quell the rebellion with the help of the Adeptus Arbites and its own Loyalist PDF regiments.Unfortunately, the Adamant Citadels that had kept the Uprising from spreading to the southern part of Donatos' principal continent suddenly failed, deactivated by infection with a pernicious scrap-code (computer virus) of Dark Mechanicum-origin. Worse yet, Chaos Space Marines, their heraldry displaying the heretical icons of the of the Word Bearers Traitor Legion, were sighted leading the rebellion. Varakh'Lorr, a Dark Apostle of the Word Bearers and the leader of the warband known as the Scribed Blade, was the true architect of this rebellion.Led by their dark masters and with the Adamant Citadels now in their hands, the rebels represented a real threat to the rule of Lord Governor Gnossul and his forces. The heroic sacrifice of the 19th Regiment of Donatos' Planetary Defence Militia -- which had sacrificed itself to ensure that the southern Adamant Citadels were bereft of power -- bought the Imperial forces enough time to retreat and dig in. Although the Donatos Uprising would seize much ground and even kill Donatos' Planetary Governor, the Imperials had time to send an astropathic distress signal to the sector authorities. Since the industrial and petro-chemical complexes of Donatos were far too valuable to the economy of that region of the Imperium to leave in enemy hands or simply destroy from orbit, a reconquest of Donatos Primus was ordered by the sector high command. This assault became known as the Donatos War.With the support of several regiments of the Astra Militarum, the Imperial Knights of the nearby Knight World of Adrastapol were ordered to undertake the reconquest of Donatos Primus. Command of the operation was given to the seasoned veteran and ruler of that world, High King Tolwyn of House Draconis. Adrastapol would contribute over 300 Imperial Knights to the campaign. Facing such potent adversaries, the Donatosian rebels lost several important battles which saw them forced to retreat north of Donatos' equator and back to the near-impregnable fortifications of the Valle Electrum, the beating heart of the Adamant Citadel network.High King Tolwyn realised that regaining control or destroying the Adamant Citadels would bring victory to the Imperium and concentrated all his efforts upon the conquest of the Valle Electrum. Alas, as the High King led the combined Imperial forces in their first assault, he was betrayed by two of his closest allies, Archduke Duncan of House Wyvorn and Viscount Gerraint of House Chimaeros, who switched sides in the middle of the battle. With nearly half of his Knights turning upon him, caught between these Traitors and the fortifications of the Donatosian rebels, the Imperial forces suffered heavily, including the loss of their own commander. However, Tolwyn's sacrifice  allowed a force of his own Knights to escape. Led by Tolwyn's son and heir, Danial Tan Draconis, these survivors went to ground and proved to be a thorn in the enemy's side.Suffering several drawbacks, including another ambush which heavily reduced their numbers, the Loyalist Knights of Houses Draconis, Minotos and Pegasson were able to maintain their cohesion as a fighting unit and survive in numbers  large enough that they still posed a threat to the enemy's plans. However, the forces of Chaos present on Donatos Primus were not united in their ultimate aims. Varakh'Lorr intended to sacrifice Donatos' population as part of a great Chaos ritual intended to fuel his ascension to Daemon Prince, whilst the Traitor Viscount Gerraint Tan Chimaeros, the self-proclaimed High King of Adrastapol, sought to take control of Donatos' resources and armies to ensure Adrastapol's secession from the Imperium of Man.As the Traitor factions turned on each other, disabling the vital Adamant Citadels in the process, the Loyalist Imperial Knights mounted a near-suicidal second assault upon the Valle Electrum. Danial Tan Draconis' plan proved an unmitigated success, killing both the leaders of the  Renegade Knight Houses and Varakh'Lorr while simultaneously allowing for the destruction of the Valle Electrum. High King Tolwyn's original analysis proved true, as without control of the Adamant Citadels, the Traitors were soon vanquished. Remnants of the Word Bearers' Scribed Blade warband and the Renegade House Chimaeros escaped destruction and were mercilessly hunted by the Freeblade Knight known as the Knight of Ashes, the last loyal son of House Chimaeros.