When gul'dan attempted to turn the orcs of draenor into fel orcs of the burning legion he was met with an unexpeted result; defiance. With the new iron horde leaders words being, "We will never be slaves! but we will be conquers."
Grommash Hellscream
Velen
Gul'dan
Kill'rogg Deadeye
final raid: hellfire citadel
13 bosses
final boss: Archimonde
Soon before garroshs trial in pandaria he escaped. and warned his father, grommash hellscream, not drink the pit lord demon mannoroths blood, and instead create an iron horde of draenors orcs with grommash as its leader. Soon azeroth armies heard of theis and were sent by their leaders to the blasted lands, where the dark portal stood. As they traveled through outland before it was twisted into what outland is today, adventures were held as the alliance and horde rose up against the tyranny of the shadow council, and the burning legion, eventually ascending hellfire citadel and defeating archimonde. And releasing draenor from the burning legions iron grip. But, before archimonde died, he shot gul'dan into the fel portal that brought him here, but instead sent him to azeroth.