13th Black Crusade (Original)

The Thirteenth Black Crusade was the background to the world-wide Warhammer 40,000 Eye of Terror campaign, which resulted in a minor victory for the forces of Chaos and gave Abaddon a foothold on the Cadian Gate, though he suffered grevious losses to his fleet. His foothold on the Cadian Gate was later dislodged by a vicious counter-attack led by Admiral Quarren and elements from several chapters of Space Marines.