Isengard - is the stronghold of the corrupt wizard Saruman. Within its caverns, he breeds an army of 10,000 Uruk-hai to destroy the people of Rohan. The obsidian tower of Orthanc rises from the center of Isengard, which is one of the Two Towers of evil.

Uruk-Hai - An improved version of Orcs, the Uruk-hai are bred in Isengard by Saruman. He creates an army of 10,000 to destroy the world of men at Helm's Deep.