Horde Expedition

The Horde Expedition oversees all the forces of the Horde in Northrend including:
 * The Hand of Vengeance (Forsaken)
 * The Taunka (Taunka)
 * The Warsong Offensive (Primarily Orcs, Tauren, Mag'har and Trolls)
 * The Sunreavers (Blood Elves)

Their Alliance counterpart is the Alliance Vanguard. If no other Championing tabard is worn in Championing dungeons, Horde Players will gain reputation with this faction instead.

Reputation
Half of the reputation gains from the Horde Expedition's four sub-factions will also count towards your reputation with the Horde Expedition. Some quests (including the Grizzly Hills daily quest Blackriver Brawl) give Horde Expedition reputation directly.