Yula Crusade

The Yula Crusade was one of the first recorded engagements conducted by the venerable Dark Angels' Successor Chapter, the Blades of the Lion upon the world of Oathur V. When this world fell into bloody insurrection, the Blades answered the call and were one of the first Imperial forces to respond. When the deployed to the beleaguered world they discovered the true instigators of the insurrection, the vile Chaos Warband known as the Obsidian Suns.

History
One of the first recorded campaigns of the Blades of the Lion was the Oathur V Uprising. When the Imperial government was overthrown by heretics, the planet fell into bloody insurrection. Unbeknownst to the Chapter, the true threat behind the secessionist movement was instigated by agents of Tzeentch, of the Chaos Warband known as the Obsidian Suns. The Blades worked tirelessly to root out those behind the uprising and made brutal examples out of the secessionist leaders by hanging their bodies from the tallest towers of the Planetary Governor's palace for all to see - a reminder to those that would dare countenance insurrection and rebellion, that should they dare, this too, would also be their fate - a traitor's death. Since that time, Oathur V has remained a pinnacle of Imperial efficiency and loyalty, brutally rooting out rebellion and sedition at its root, before it can bloom into full-blown insurrection.