The Blood River War was an ancient orcish war, of which not much is known. It was a savage conflict between the Dark Scar Clan, Orcs, and a large tribe of Ogres. The conflict lasted for weeks, with each side making gains and losses, but an ambush by the Ogre Chieftain left the Dark Scar army crippled and desperate to make a final charge at the Ogre Encampment. The Dark Scar Clan was destroyed during this war. The only person known to have taken part in this war was Kash'drakor, who wielded the legendary axe Serathil. The last living descendant of Kash'drakor is Nazgrel, advisor of Thrall.