When Acherus was moved into play against the Crusade, Galvar began assembling a host from Hearthglen and the surrounding lands. His plan was to unite with Abbendis' forces and drive back the death knights.
Abbendis, however, was being manipulated by Mal'ganis under the guise of the Light into believing that Galvar and his forces stood no chance and would be slaughtered. After sending many Scarlet Couriers to try and warn the High Commander not to march to Tyr's Hand and join her in Northrend, Abbendis sailed for the frozen north, abandoning the Scarlet Crusade to its fate.
In  the Lich King sends his forces to counter the anticipated Scarlet army from Tirisfal and Hearthglen. Pureblood's legions are defeated by the death knights, and the High Commander is likely killed in action.
The armies of Hearthglen and Tirisfal are less than a day's ride from New Avalon. We ride with the Light shining upon our backs and the wind at our heels. Soon the Scourge will have to contend with the full might of the Scarlet Crusade!
Light Bless You,
High Commander Galvar Pureblood