Battle of the Earth

The Battle of the Earth was where Melkor invaded with many Nameless creatures and Maiar. Having great affinity towards this element, Melkor and his forces tired the forces of good and actually disrupted the foundations of Arda. Arda became marred from this battle. The commanders that Melkor trusted among the Nameless were kept secret and delved into Arda. They were placed there by Melkor and even Sauron knew them not!