Warcraft II: Beyond The Dark Portal, an expansion pack for Warcraft II: Tides of Darkness, was released, adding new campaigns and content to the base game.
The orc warlock Gul'dan creates the Dark Portal, connecting Azeroth with the new world of Draenor (later known as Outland).
Orcish clans led by Ner'zhul invade Draenor after passing through the Dark Portal, beginning the colonization and conquest of the new world.
Ner'zhul, learning of Gul'dan's treachery, attempts to escape his servitude but is ultimately captured by the Burning Legion, fracturing Draenor into the shattered lands.
Humans of Azeroth, forming the Alliance, send an expedition force through the Dark Portal to stop the orc threat on Draenor.
Alliance forces assault the orc capital and engage demon forces near the Throne of Kil'jaeden in an effort to end the demon influence.
The Alliance launches a final assault on the Dark Portal to close it and prevent future orc reinforcements into Azeroth.
