Carve a Path Through History

It is the era of an Old Horde, forged with steel rather than fel blood. A union of great orc clans, the Iron Horde, tramples the planet Draenor beneath terrifying war machines. Azeroth falls next. Worlds uncounted will follow.
You must mount a desperate charge on Draenor – savage home of orcs and adopted bastion of stoic draenei – at this pivotal moment. Your allies are legends from across time; your fortress a foothold in an alien land. Lead the armies of one world against another…before the future itself is unmade.

Heroes Reborn

With Warlords of Draenor, Classic Warcraft races sport higher detail, updated animations, and new visuals that reflect the soul of their original models: teeth, bones, beards, ’hawks, and all. Look ready for action. Be ready for action.

Arise a Champion

Opposing the Iron Horde are the heroes of Azeroth—at the heights of power they’ve always been destined for. Even if you’re new or returning to the game, Warlords empowers you to immediately upgrade one of your characters to level 90 and master new abilities at the gateway to Draenor, so that you can charge into grand combat right away. Play the races and classes you’ve always wanted to try, wage war alongside your friends, and take your place among Warcraft’s finest.

Take Command on Draenor

To clash with the greatest army Draenor has ever known, you’ll need your own forces and your own fortress. Construct a mighty garrison: an enduring home base integrated seamlessly with the world, not a hiding spot far from the action. Customize it with specialized structures like farms, stables, armories, workshops and more.
Establish trade routes and unlock new quests, gear and pets to support your war for Draenor. Recruit stalwart followers to man your base, and send them to loot dungeons, fulfill missions, and craft items, even if you’re offline. Tame a deadly realm, and build an unbreakable monument to victory.

Journey to a Mythic Time

Before the orcs first invaded Azeroth, the Iron Horde rose to dominate a historic age. Only the heroes of past and present still defy the warlords of Draenor. Through a refined, flexible questing system, you’ll meet storied heroes and villains in battle without slowing your exploration of a forbidding land. As you and your allies win victories, you’ll be duly rewarded—any quest can randomly award bonus rare or epic items. Stand beside legends. Break the tide of steel.

Brave a Savage World

Draenor is a land of magma and metal, stone and steam. City-forges wrap her twin moons in smog, and wheels deform the earth. Vicious saberon, winged arakkoa, spike-skinned gronn, and more unusual creatures rule the edges of the world, feasting on anything they kill.
Enigmatic draenei refugees have built a coastal foothold into a glimmering state replete with the libraries and worship-halls of their timeless civilization. Meanwhile, the Iron Horde’s slaves labor on engines of war pointed at the draenei and worlds beyond.
Kingdoms, clans, tribes, men, women, children – all are tense as coiled muscles.
This is from the WoD Official Website for those who haven't visited it yet. it actually explains a lot of what's being asked atm.