Rangdan Xenocides - Third Rangdan Xenocide: The third and final Rangdan war, more commonly known simply as "the Rangdan Xenocide," is little known and in many Imperial histories completely absent. It was conducted sometime in the 890s.M30 under the orders of the Divisio Militaris by the combined forces of the Dark Angels and Space Wolves, the final and irrevocable xenocidal solution to the threat of the Rangda. That great and terrible xenos race had been sorely wounded by their losses in the second war with the Imperium, but not vanquished. They had returned to their ancient homeworlds, and there, nourished by hate and a dark hunger, they had grown strong once again.By chance those nests were discovered by a roving company of White Scars after the lifting of the edict of exclusion from the borders of Rangdan space in 887.M30, news the sons of Jaghatai Khan brought to the courts of Lion El'Jonson and Leman Russ. Those two primarchs, often antagonistic, were warlords united by the same bleak purpose, for if the Rangda still lived, they must be swiftly and utterly destroyed lest they rise again and ignite another great war. Together they and their Legions visited hell upon the remaining Rangda, scouring their last worlds clean from orbit and then descending to verify the termination of every hive and fortress with blade and flame.This last campaign was no war, but a brutal and one-sided extermination campaign. Neither Leman Russ nor Lion El'Jonson held any illusions of tawdry chivalry to stay their hands, and they took a savage and final satisfaction in the utter annihilation of every last warrior and worker of the Rangda. They were aided by the Mechanicum of Xana II, which contributed a large expeditionary force, including the Taghmata commanded by Magos Dominus Anacharis Scoria and House Malinax, which also took part in the carefully planned genocide of the homeworld of the Rangda.In the space of a single Terran year the galaxy was wiped clean of the Rangda, their last formations torn down and all traces of their works brought to ruin. The world of Advex-mors, where the Rangdan conflicts had first begun, was left as little more than plains of fractured glass formed from atomic fire, and became the site of a chantry house of the Ist Legion, home of the Order of Broken Claws, the keepers of the last set of codices that detailed the Rangda and their weaknesses. Interestingly, Imperial reports that erroneously state that this chantry had been established on the Rangda's homeworld, not Advex-mors, make some historitors believe that the mistake was made on purpose to give more weight to the Imperial claim that the Rangda had been entirely exterminated.This was the end of both the Rangda and the Imperial campaigns against them, a quiet and undignified slaughter undertaken with the stoic determination that was the hallmark of the two rival primarchs of Caliban and Fenris. If any of the xenos race known to the Imperium as the Rangda survived this final campaign, in some far-flung outpost beyond the edge of the galaxy, then they have not returned to seek their vengeance, but the sentinels placed by the Ist Legion still watched and waited, perhaps giving the lie to the Imperial certainty of the Rangda's demise.The Third Rangdan Xenocide is a conflict that is particularly obtuse in Imperal records; there are some sources which entirely discount the outline of events given above. For instance, another account states that the third Rangdan war was an apocalyptic conflict during which 50,000 Dark Angels were killed as they fought off a massive Rangdan invasion which brought the entire northern Imperium to the brink of destruction. These horrific losses eventually contributed to the Dark Angels losing their status as the largest of the Space Marine Legions to the Ultramarines, as noted above.A third source claims that the Third Rangdan Xenocide was a solar-decade-long series of catastrophic, xenocidal purges organised by the Dark Angels and Space Wolves to wipe out all life on Rangda-tainted worlds, including those still inhabited by Imperial Humans in a series of Exterminatus actions. The result was a campaign far greater in scope than other accounts claim, with countless battles fought "across vast swathes of the galactic north-west" during the third conflict.