Uruk-Hai were first created by Sauron late in the Third Age and they were among his strongest and most capable types of Orc that he created. Not only that the Uruk-hai made up more than half of Saruman's Army, together with theDunlendings, Man-enemies of Rohan, and also served as the elite troops of Mordor. The Uruk-hai are faster than normal Orcs and could travel during the day without being weakened by the sun. They are significantly more muscular and not quite so bow-legged as Orcs, and often stood six feet tall, notably larger than Orcs but still shorter than most men. These top-heavy juggernauts winced and grimaced constantly, as if they were always in pain and their only relief lay in violence. There are suggestions that the Uruk-hai were the result of crossbreeding Orcs and Men. Certainly, there were other creatures in Saruman's armies, and under his command in the Shire, that appear to have been hybrids. "Half-orcs" were as tall as Men and are never described simply as Orcs, as the Uruk-hai frequently are. It has also been suggested that they are the cross-breeds of goblins and Half-orcs. Saruman's army of Uruk-hai fought against King Théoden of Rohan and his people at Helm's Deep.