Battle of Vannaheim
The Battle of Vannaheim was a battle of the Horus Heresy fought from 008-009.M31. The battle began when the Iron Warriors launched a daring assault on the orbital Hives of Vannaheim, capturing them after 10 days of brutal fighting. A nearly force of loyalist Astartes including Space Wolves were then drawn into the conflict, launching three counter-attacks to reclaim the orbital hive stations. Each however failed to achieve its goals and countless loyalist lives were loyalist. During the last, disastrous attempt, the Space Wolves Grand Cruiser Helicon Spear was captured by the Iron Warriors, becoming a prize for the traitor Legion.