 Gorkil continues marching west and besieges <unk> , the fortified ruins of the ancient capitol of Arnor . The defenders , consisting of the <unk> and Dwarves led by Glóin , crumble under the relentless Goblin attacks , and Eriador falls under Goblin control . Sauron launches a concurrent campaign east of the Misty Mountains . The orcs from Dol Guldur eliminate the Elves and the Ents that guard the Forest Road in Mirkwood , defeating the Elven lord Thranduil . After the fall of Mirkwood , the Mouth of Sauron leads his horde to Withered Heath to recruit the Dragon Lord Drogoth , after destroying the Dwarves in the area . To finally rid Sauron and Middle Earth of the Dwarves , The Mouth of Sauron attacks the human city of Dale and the Dwarven stronghold of Erebor , led by King Dain . For the final battle against the Good factions in the North , the Goblin horde and Sauron 's forces from Mordor converge at Rivendell , the last surviving stronghold against Sauron in Middle @-@ earth . Eagles , the Dead Men of <unk> , Galadriel and her surviving Elves , and the remnants of the Fellowship of the Ring arrive to help Arwen and Elrond , but Sauron ( having attained full power through recovering the One Ring from the dead Frodo ) and all his gathered forces enter the battle and completely destroy the remaining Good forces in the North . 
