I considered Aragorn himself and the sword of Elendil as great enemies of Sauron, however I felt that that was more dangerous to Sauron himself than to his armies. Of course it would cause fear among his armies but the differnence between Aragorn as king and Aragorn as "simply" the heir of Elendil would be small. However the stoming of Minas Tirith might just as well be to stop Aragorn from taking command of Gondors armies.
|