...He just put Atanamir and Perdan out of the fight so Sirion can fight Westmoor alone.
While I absolutely do not deny Sirion provided the bulk of military power, and the war could've never been won without them, Sirion was never alone in putting Atanamir and Perdan out of the fight, or fighting Westmoor. Furthermore, Perdan wasn't out of the fight before Westmoor. We killed Westmoor (begrudgingly, offering them to please stop their foolish war against us, to no avail), and then fought Perdan to a surrender (which they then proceeded to violate sometime later).
