who led the elves at helm's deep
Battle of the Hornburg In the movie, 10,000 of Saruman's Uruk-hai (with no orcs of other races, Dunlendings or wargs to accompany them) lay siege to the fortress, which is defended by around 300 Rohirrim (before the battle, Legolas states their strength to be "three hundred against ten thousand", but he may have meant at that time, as more were fleeing to the fortress). Soon after, however, a large group of the Elves of Lórien join the defences. Elrond, at the prompting of Galadriel, sends the Elves under the command of Haldir of Lórien to reinforce the defence of the keep. During the battle, nearly all of the Elves are killed, including Haldir. The defenders suffer heavy losses, but hold out until dawn, when Gandalf arrives with 2,000[4] riders led by Éomer, who finally turn the tide of the battle and send Saruman's forces into retreat. In the Extended DVD version, the Huorns make an appearance, massacring the fleeing Uruk-hai after the battle, but were absent from the theatrical cut.
Uruk-hai The chapter "The Uruk-hai" details some differences among the orcs. The raiding party included orcs from Mordor led by Grishnákh, Saruman's "fighting Uruk-hai" from Isengard led by Uglúk, and "northerners", orcs from Moria. It was the dead Uruks from Isengard whom Aragorn found remarkable. The Uruk-hai of Isengard were the tallest of these orcs, and had large hands and thick legs. The orcs of Mordor were all long-armed and crook-legged, not as tall as the Isengarders but larger and more powerful than the orcs from Moria. The orcs of Moria in turn could see better in the dark than the Isengarders. Grishnákh from Mordor is described as "short" but "very broad". In The Return of the King the orcs Shagrat and Gorbag are identified as Uruks of Mordor.