The Earth Emperor's countless armies conquered planet after planet in the Great Sacred March. Myriads of alien races were destroyed and swept away from the face of history by His strongest warriors. The dawn of a new era of unsurpassed human greatness was nearer than ever. Glittering golden marble citadels celebrated the Emperor's victories, monuments and triumphal arches were erected on millions of worlds, speaking of the incredible achievements of his followers. First and foremost among them were the Primarchs, the supermen who led the Imperial armies to victory to victory. Unstoppable and full of powerful forces, they were the pinnacle of their father the Emperor's genetic experiments. Behind them were thousands of Legions of Space Marines, the strongest soldiers in the Galaxy, capable of defeating a hundred ordinary people in battle. Warriors of three Astartes legions, led by their primarchs, landed on the planet inhabited by the Eldar: the Death Guard, the Iron Hands and the Salamanders.