Goblin-men

Goblin-men were servants of the wizard Saruman, who sought to control Middle-earth during the War of the Ring in the late Third Age.

They were servants of Saruman, possibly bred from the same hybridization process as the fighting Uruk-hai. The half-orcs were used by the fallen wizard as spies in Bree such as the Squint-eyed Southerner, while many others participated in the Battle of Helm's Deep and the Siege of Isengard.

History
Half-orcs were the product of the union of Men and Orcs, being the results of the early process of breeding Uruk-hai. Although they were not as wide spread as the Uruk-hai they were still deadly similar to the Dunlendings from whom they might have been descended. They worked alongside Orcs and Goblin-men in the caverns of Isengard for years, preparing Saruman's conquest of Rohan, forging weapons and armor for his army. While some served as spies in Bree at the Prancing Pony Inn, Half-Orcs, Goblin-men, Orcs, Uruk-hai and Men made up the wizard's forces in the Battle of Helm's Deep where they were defeated by the Rohirrim Riders and their allies. The ones that survived the skimirsh were killed by the Huorn's Forest that came to the Free Peoples aid.

The rest of the Orcs were killed in the pits of Isengard, mostly because of the huge flood the Ents made when they descended upon the Tower of Orthanc with wrath.