Speak with Foreman Grobash in Talador.
All able-bodied members of the Horde are hereby ordered to report to Foreman Grobash in Talador. The Iron Horde seek to control Talador. The area is perfect to send reinforcements to any other part of Draenor quickly and without resistance. Foreman Grobash is currently establishing an outpost in Talador. Travel there and stop the Iron Horde. For the Horde!