Chaos Space Marines

In the table-top wargame Warhammer 40,000, the Chaos Space Marines are one of the forces of Chaos. more...

History

According to the story, 10,000 years ago, Warmaster Horus, Primarch of the Luna Wolves (later Sons of Horus, and the Black Legion) was tainted by Chaos while he recovered from wounds on the planet Davin, having been inducted into a "warrior lodge" that was little more than a Chaos cult. Horus introduced the "warrior lodge" ideal to his legion, and eventually spread the taint of chaos to fully nine of the twenty Legions. These corrupted marines wholeheartedly followed Horus's idea of a new Imperium of Man, with Horus as Emperor.

Unaware of the treachery, the Emperor sent Horus to Istvaan III, where the Imperial governor had declared the system independent of the Empire, to suppress the rebellion. Horus ordered his ships to virus bomb the planet, killing the population in seconds; and releasing a psychic shockwave said to have been louder than the Astronomican.

After months of procrastination, The Emperor dispatched seven legions of space marines to confront Horus, his sons and the two other legions that had openly sided with Horus. The first wave of three legions met the traitors in battle on the surface of Istvaan V. However when the second wave landed, they turned their guns not on Horus' troops, but on those of the first wave, all but wiping them out. Thus began the Horus Heresy. Ultimately, as Horus's forces laid siege to the Emperor's palace on Earth, his Battle Barge's shields dropped to lure the Emperor into combat and defeat, before the space marines legions of the Space Wolves and Dark Angels reached Terra, and turned the tides of the assualt on the Imperial Palace. This drop in the shields allowed Rogal Dorn of the Imperial Fists, the Emperor and Sanguinius to teleport onto the barge. Because of the chaos magics protecting the ship, they were split up in the teleportation and ended up in different parts of the barge. They were assaulted by demons of the warp.

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