Essence of the factions changed and it is hilarious all things considered.
Alliance
The steadfast Alliance is driven by tradition. They are staunch defenders of justice and duty who protect the realm of Azeroth against any aggressors, including the savage Horde.
Horde
The indomitable Horde is driven by unity. They are fervent keepers of freedom and hope, relentlessly opposed to any who threaten these ideals, including the stringent Alliance.
https://worldofwarcraft.com/en-us/game/races