The Warmaul clan/tribe is a recently formed group of ogres who primarily inhabit the Nagrand zone of Outland.
Now, they are led by Cho'war the Pillager from their main base at Warmaul Hill in northwestern Nagrand. Mogor the Ogre leads those Warmaul ogres located at Laughing Skull Ruins in northern Nagrand.
Currently, the Warmaul ogres are fighting the Boulderfist ogres for the territory within Nagrand. They are worshipping the corrupted earth elemental Gurok the Usurper at their base at Warmaul Hill.
The ogres of the Warmaul clan used to be under the control of the gronn until Cho'war the Pillager supposedly forced the gronn out of the cave at Warmaul Hill and declared himself king.