Stalemate was a war front almost entirely forgotten by the Imperium. It's records were scorched from the imperial records. Even though it's has become an infamous name. Few in the Imperium truly know what happened on Stalemate. Stalemate was once an outlaw planet but was enveloped by the Imperium in 665.M38 not much later the planet fell into chaos mainly because a cult of chaos worshippers known as Tzeentch's Crowned.