Round two, fight! As both Horde and Alliance forces entered the Dark Portal and traveled to Outland, tensions continued to build on both sides. But once again, both sides united to put a stop to get the best wow gold to the Burning Legion -- this time, Kil'jaeden. In fact, the interaction between the blood elves and draenei was the perfect illustration of what an alliance between the two factions could accomplish. Even though the blood elves had sabotaged the Exodar, causing it to plummet to Azeroth, Velen was able to distinguish between the elves that served Prince Kael'thas, and subsequently the Burning Legion, and the blood elves who were simply blind followers.
Not only that, but Velen was willing to actually help the beleaguered blood elves and restore the Sunwell. The source of all their power -- the thing that caused all those crazy addictions that eventually led their leader straight to the Legion's doorstep. And Velen didn't ask for a single thing in return. In contrast, the blood elves had the help of the Forsaken, yes -- and were forced to send what little aid they could to buy wow accounts from Northrend, under threat of that alliance being broken.
Is it any wonder that the blood elves considered, even briefly, defecting from the Horde? The relationship between the draenei and the blood elves was barely mentioned by either side. The draenei didn't receive any kind of punishment for what they'd done, and the blood elves received no acknowledgement of their short alliance with the draenei, either. In fact, both sin'dorei and draenei were by and large ignored when the war in Northrend began, their curious alliance completely forgotten in favor of fighting the Lich King -- and fighting between the Alliance and Horde.
Know Your Lore The Alliance and Horde