Draenei Eredar

Draenei are a branch of the Eredar race, which splintered into Draenei who followed the benevolent Velen, and Man'ari, who were led by Archimonde and Kil'jaeden. After crash landing on Azeroth, they have joined with the Grand Alliance. Draenei is the Eredar term for "exiled ones".

History
The Draenei began when the Titan Sargeras offerede power to the Eredar, which Velen believed would corrupt the race. Those that accepted the power became Man'ari Eredar, while those escaped the corruption became known as the Draenei.

World after world they travelled, trying to escape Kil'jaeden's wrath. After hiding on Draenor, the native Orcs were twisted by Kil'jaeden to slaughter the Draenei. By the end of the conflict, the race was nearly extinct, and forced to flee into Zangarmarsh.

After Illidan came to Outland, Velen decided that the Draenei needed to escape to another world, using the Exodar to escape. However, the Sin'dorei that it was stolen from realized their intentions, and sabotaged the Exodar. Upon using it, the Draenei were sent hurtling through the universe, landing, concidentally, on Azeroth.