Meet Ambassador Blackguard at the Orgrimmar Embassy.
A new age dawns upon Highmountain, <name>. After centuries apart, the bond with our kin from Kalimdor has been reforged. And in the fight to save our land, we found new friends among the people of the Horde. To show the strength we bring to our allies, brave tauren like you must heed the call of adventure. You have been invited to Orgrimmar. Meet with the ambassador at the warchief's embassy, then begin your journey across Azeroth. Earthmother be with you, <name>.