Splinter Fist Clan

The Splinter Fist Clan (also called Vul'Gol ogres) are a group of ogres found in Duskwood. Duskwood has became one of the most dangerous areas held by the Alliance, in part because of the Splinter Fist Clan. They live in the southern part of the region and raid the remaining Alliance villages in the area, and sometimes attack humans and steal their belongings.

Some think that the detoriation of Duskwood's forest is caused by the Splinter Fist ogres, but they're not difficult to take down. The influx of undead and worgen in Duskwood has caused the clan's numbers  to become severely reduced, and their contained landmass has shrunken considerably. A number of ogres from the Splinter Fist Clan have also been captured and sold to the Darkmoon Fair, while others have gone willingly.

Adapted from WoWWiki with added fanon.