while i *should* be studying for my finals, i can't help but to come across this in the WoW 1.11 FAQ:

Q: Where did the Draenei come from?
A: The Draenei's flight from the Legion eventually led them to a remote, peaceful world, which they named Draenor. In time, the Draenei met and befriended the native Orc clans that lived on this tranquil planet. For many years they lived peacefully with their shamanistic neighbors, until Kil'jaeden discovered their hiding place and corrupted the Orcs, pitting them against the Draenei. The Orcs nearly eradicated the entire Draenei race during the ensuing war. Recently, the surviving Draenei fled Outland, and a small group of these refugees landed on Azeroth.

RIP WarCraft lore.