Speak with Dread-Admiral Tattersail.
Front and center, <name>! As of last night, we received word that Rexxar's force at Warfang Hold in Stormsong was surrounded by a Kul Tiran army and an attack is imminent. As soon as you have your things packed, go speak with Dread-Admiral Tattersail and we'll get underway. There's no time to waste!