 Saruman then launched an invasion of Rohan, with victory in early battles at the Fords of Isen, killing Théoden's son, Théodred.Saruman was defeated at the Battle of the Hornburg, where the tree-like Huorns came from the forest of Fangorn to help the Rohirrim.Théoden then rode with his army to Minas Tirith, helping to break its siege in the Battle of the Pelennor Fields and killing the leader of the Haradrim, but was killed when his horse fell.