Source
The story of The Two Towers:
*Sauron brought some elphists to build their own army. Then, by torturing them, poisoned their souls. Gradually they turned into Orcs. But there was a problem with Orcs, they could not go out in the light of the sun, so that the sky had to cover the sky in Black Cloud. But this time there is no such problem. Another sorcerer Saruman made a combination of ornaments with Goblin, a new species - Urukhai. Saruman - with the hand Sauron joined hands, but he himself went out of the ring to find out, Urukhai had taken the responsibility to capture that habit. Although this fellowship began in Fellowship, the mouse-cat chase-counter chase started at Two Towers.
The story of the story gets bigger and it comes to this episode. Another state of the people, Rohan is living in a very sad state of Urukhayad. The wizard has also enriched the Rohan king. At the door of Rohan's head, infinite war ... .. *