[Mithadan]

In Peoples of Middle Earth (I believe), JRRT comments that the mission of the Blue Wizards in the East was to disrupt Sauron's attempts to recruit men to his cause and that this may have been accomplished by setting up cult-like organizations to oppose the Dark Lord. He goes on to say that their efforts may have been partially successful else matters would have been much worse during the War of the Ring. Imagine an even greater influx of Easterlings to swell Sauron's armies, assisting in the assaults upon Gondor, Rohan and The Lonely Mountain!