Siege of Fort Mork
The Siege of Fort Mork was a battle fought between the Imperial Fists Space Marine Chapter and Orks in 955.M41. The Imperial Fists 4th and 9th Companies laid siege to the Ork mega-stronghold of Fort Mork, and were nearly overwhelmed when thousands of Greenskins poured out from its gates. As one, the Imperial Fists were able to lay down withering fire, but only managed to break the Orks after three days of battle. As the Orks begin to falter, they are annihilated by the combined fire of a dozen Thunderfire Cannons before they could reach the safety of their fortress.