The Great War is in its last months yet the scales of battle still remain ever equal. For a decade the two superpowers have battered each other in an apocalyptic conflict that has claimed over a hundred million lives and destroyed entire nations. The Final Act of the war comes to a close as the Mantle-Mistral Pact makes a last bid for victory in the sun-blasted dune-seas of Sanus to seize the vital dust mines needed to fuel their dying engines war. But they do not advance unopposed, Vale and Vacuo stand united at the gates of the Desert Kingdom's capital with the greatest armoured force at their disposal. The largest and most deadly armoured clash in known history is about to commence, known only afterwards as The Harvest of Iron...