Rogal Dorn - Jealousies and Rivalries: Following his promotion to the exalted rank of Warmaster, Horus had solicited the opinions and advice of all his brother Primarchs on the subject since the honour had been bestowed upon him. Being named Warmaster set him abruptly apart from them, and raised him up above his brothers, and there had been some stifled objections and discontent, especially from those Primarchs who felt the title should have been theirs. The Primarchs were as prone to sibling rivalry and petty competition as any group of brothers. Guided by the shrewd political hand, it was likely, of his Equerry Maloghurst, Horus had courted his brothers, stilling fears, calming doubts, reaffirming pacts and generally securing their cooperation. He wanted none to feel slighted, or overlooked. He wanted none to think they were no longer listened to. Some, like Sanguinius, Lorgar and Fulgrim, had acclaimed Horus' election from the outset. Others, like Angron and Perturabo, had raged biliously at the new order, and it had taken masterful diplomacy on the Warmaster's part to placate their choler and jealousy. A few, like Leman Russ and Lion El'Jonson, had been cynically resolved, unsurprised by the turn of events.But others, like Roboute Guilliman, Jaghatai Khan and Rogal Dorn had simply taken it in their stride, accepting the Emperor’s decree as the right and obvious choice. Horus had ever been the brightest, the first and the favourite. They did not doubt his fitness for the role, for none of the Primarchs had ever matched Horus’ achievements, nor the intimacy of his bond with the Emperor. It was to these solid, resolved brothers that Horus turned in particular for counsel. Dorn and Guilliman both embodied the staunchest and most dedicated Imperial qualities, commanding their Legions' expeditions with peerless devotion and military genius. Horus desired their approval as a young man might seek the quiescence of older, more accomplished brothers.Following his promotion, Primarch Dorn had come to the 63rd Expeditionary Fleet at Horus' behest, so that the two of them might discuss in detail the obligations and remit of the role of Warmaster. Rogal Dorn possessed perhaps the finest military mind of all the Primarchs. It was as ordered and disciplined as Roboute Guilliman's, as courageous as the Lion’s, yet still supple enough to allow for the flash of inspiration, the flash of battle zeal that had won the likes of Leman Russ and the Khan so many victory wreaths. Dorn's record in the Crusade was second only to Horus', but he was resolute where Horus was flamboyant, reserved where Horus was charismatic, and that was why Horus had been the obvious choice for the position of Imperial Warmaster. In keeping with his patient, stony character, Dorn's VII Legion had become renowned for siegecraft and defensive strategies. The Warmaster had once joked that where he could storm a fortress like no other, Rogal Dorn could hold it. "If I ever laid assault to a bastion possessed by you," Horus had quipped at a recent banquet, "then the war would last for all eternity, the best in attack matched by the best in defence." The Imperial Fists were an immovable object to the Luna Wolves' unstoppable force.