There are two factions in World of Warcraft, the Alliance and the Horde. In story terms the alliance is peaceful and is usually defending itself from the Horde races, while the Horde is chaotic and usually aims at destroying the Alliance
wow gold races. Of course, as many of the Alliance raids are pre-emptive strikes the boundary is very blurred, and the basic result is that both factions go around slaughtering whatever they can catch(hey - it's a combat game...).
The Alliance Races
wow goldconsist of Humans, Night Elves, Dwarves and Gnomes. Added to the usual cast of good guys is the Draenei(the Burning Crusade Expansion is needed). The Horde consists of Orcs, Tauren(kind of like minotaurs), Undead and Trolls. The Burning Crusade adds a fifth race - the Blood Elves.