Question: how are the uraki made?
Answer: In the War of the Ring, the Uruk-hai made up a large part of Saruman's army, together with the Dunlendings, man-enemies of Rohan. There are suggestions that the Uruk-hai were the result of crossbreeding orcs and men. ... Saruman's vast army of Uruk-hai fought against King Théoden of Rohan and his people at the Helm's Deep.