Warcraft II: Tides of Darkness
The human nation of Stormwind had fallen before the Horde. Knight Champion Anduin Lothar gathered the scattered remnants of the human army and led the refugees north across the Great Sea to the kingdom of Lordaeron. By enlisting the aid of other nations - humans, gnomes, elves, and dwarves - Lothar helped form a great Alliance to stand against the orcs and their ruthless new leader, Orgrim Doomhammer. The seemingly unstoppable Horde continued its rampage, reinforcing its growing army with savage trolls and brutish ogres. But, on the eve of victory, Gul'dan and his followers selfishly abandoned their allies to seek out powerful artifacts, forcing the weakened Horde to retreat. Doomhammer momentarily rallied the orcs when he slew Lothar in a harrowing battle, but the hero's death did not break the Alliance's resolve. Turalyon, Lothar's loyal lieutenant, quickly took up leadership of Azeroth's defenders and finally defeated the Horde.
Warcraft II: Beyond the Dark Portal
Following the destruction of Azeroth's Dark Portal by the victorious Alliance, the orc shaman Ner'zhul took command of the remaining Horde on Draenor. There, he plotted to create portals to other unspoiled worlds and invade each in turn. To enable the rituals for his dimensional conquest, Ner'zhul sent orcish forces through his world's intact Dark Portal in search of powerful relics on Azeroth. Wary of the Horde's plans, the heroes of the Alliance invaded Draenor to end the orcish threat forever. Facing certain defeat at the hands of his enemies, Ner'zhul succeeded in opening numerous portals to new worlds. The resulting magical stress shattered Draenor, trapping many of Azeroth's greatest heroes on Outland, the damaged remains of the planet.