Dark Angels - Feud of Dulan: As the Space Marine Legions pushed back the frontiers of the Imperium, each primarch strove to excel in the eyes of the Emperor and none more so than Leman Russ, primarch of the Space Wolves. Only Horus Lupercal and Lion El'Jonson could claim more victories than Russ and this was a constant frustration for him.It was on the world of Dulan in 870.M30 where the Space Wolves were fighting alongside the Dark Angels that matters came to a head. This incident would start the millennia-long rivalry between the Dark Angels and the Space Wolves. The planetary governor of Dulan, Durath, had denounced the Space Wolf Primarch Leman Russ as "the Emperor's lap-dog" and swore to feed his heart to his pet Grox. Russ, enraged, swore to kill Durath himself and demanded the satisfaction of leading the assault. Jonson, however, had meticulously planned the attack and was not about to let his brother's hot-headedness foil his plans.Jonson led the assault, leaving Russ to watch helplessly as the Lion killed Durath. After the battle, Russ stormed into the fortress and struck Jonson across the room. A brawl ensued that lasted a full solar day and night, the two combatants being said to be equally matched: while Russ was slightly stronger, the Lion was slightly quicker.Russ eventually ceased and started laughing, realising how foolish their fight was and how he had allowed his pride and temper to get the better of him. Jonson, however, still angry at what he considered the treachery of Russ' first punch, knocked the laughing Space Wolf out cold with one final blow.By the time Russ regained consciousness, the Dark Angels had departed for new fields of battle in the Great Crusade. It has since been customary for selected champions from both Chapters to engage in a non-lethal duel whenever they meet so that honour may be satisfied.The Battle of Dulan and the infamous feud between the Dark Angels and the Space Wolves is a tale told many times. In essence it is always recounted as a simple tale, yet one that has seen a number of tellings each of which has had its own agenda, and rarely has that agenda been the simple truth. The details of the battle are well known as noted in the most common retelling above.Leman Russ and Lion El'Jonson were both assigned to the conquest of the world of Dulan and, while the Space Wolves waited and lay siege, the Dark Angels staged a sudden assault that allowed them to claim the honour of the final victory. On hearing of this it is most often claimed as above that Leman Russ flew into a rage and assaulted his brother, leading to the legendary duel between them that their Legions' Successor Chapters are rumoured to reenact whenever they meet. This has led to the popular assumption of a bitter grudge between the Space Wolves and the Dark Angels, a sense of lasting ill will brought about by this single isolated incident that has been accepted by history as fact.Yet, those two Legions and their later Successor Chapter fought together on a number of occasions, both before and after the Battle of Dulan, without rancour and in many cases with a noted sense of shared camaraderie. Indeed, it has often been noted that the two primarchs, Lion El'Jonson and Leman Russ, were of much the same character, though they oft expressed it differently. Both were practical to their core, with little time for frivolity or the excesses of civilisation. Both valued plain speaking over political necessity and judged men and women by the actions they took rather than the words they spoke. But above all, the two primarchs placed the utmost value on loyalty, holding their oaths as iron bonds and reserving the deepest hate for those who would forsake a vow.This being true, it throws the events on Dulan, and the grudge they are supposed to have given birth to, into a strange light. That the two fought is not in doubt, for too many sources agree on it; that either came to hold a grudge is implausible. If anything, the record of the two primarchs suggests a deep bond of trust and mutual respect.Together they had seen the end of the Rangdan empire, had conquered a thousand worlds and vanquished some of the most terrible foes to stand against the Imperium. Dulan would seem to have represented one of many tests; a test that allowed the two to take a measure of each other and a test oft repeated when they or their warriors met -- but one repeated without the rancour often attributed to it. There exists no greater symbol of the loyalty held between the two Legions, the Wolves of Fenris and the Knights of Caliban, than in the final days of the rebellion against the Emperor, when Horus himself trembled as the two Legions re-united as brothers-in-arms, ready to test themselves against the forces that lay siege to Terra.