Many months have passed since Archimonde and the Burning Legion were defeated at the Battle of Mount Hyjal.
The stalwart night elves, led by the Arch-Druid Malfurion Stormrage and the Priestess Tyrande Whisperwind, have vanished back into the shadows of Ashenvale Forest, intent on healing the ancient lands that were scarred by the legion's vile corruption.
The battle-weary orcish Horde, led by the idealistic Warchief Thrall, has settled in the harsh eastern hills of of the Kalimdor Barrens. Finally able to claim a homeland of their own, the orcs work tirelessly to found and protect their new nation of Durotar.
The human survivors of Lordaeron, under the command of the Sorceress Jaina Proudmoore, have also settled along the eastern cost of the Barrens. The island citadel of Theramore was erected to safeguard the ragtag remnants of the failing human Alliance.
And arthas, the newly crowned king of Lordaeron, has driven the undead Scourge to eradicated the last vestiges of resistance to his iron rule. His kingdom, the once-proud bastion of human might and nobility has become a plagued realm of death and sorrow. Now, driven by haunting visions of the Frozen Throne of Icecrown, Arthas plans to lighten his grip over the rest of the world.