Struggle for Azeroth:

Wintergarde Keep

The Lich King directly attacked the capital of the Alliance. Outraged by this treachery, King Varian Wrynn planned an invasion on Northrend to deal with the Lich King once and for all. The Valiance Expedition set off from Stormwind and Menethil Harbor, building a new base on the Borean Tundra at Valiance Keep and meeting their long lost brethren in Valgarde in Howling Fjord. Moving deeper inland on the Dragonblight, the Alliance at Wintergarde Keep were under attack by the Scourge necropolis, Naxxramas.