Attack on Grealk

The Attack on Grealk was an Imperial xenocidal purgation campaign carried out by the Thunder Guardians Space Marine Chapter against the Gretchin homeworld of Grealk. This campaign was a part of the much larger, galaxy-wide Indomitus Crusade.

History
Sometime during M42, the Thunder Guardians dispatched their Chapter's 3rd Company to purge the Gretchin world of Grealk. Initially, they believed that this would be a simply task. However, they were not prepared for the resistance they would face. During the intense fighting, the Third Captain Karoluis was shot and killed by a massive cannon mounted on a Squiggoth. The rest of the company was ravaged by the overwhelming numbers of Gretchin. At the battle's end, the company was in ruins and were forced to make a tactical withdrawal, running from the victorious gretchin. Retreating in the face of the enemy was already a difficult thing for the prideful Astartes to do, but being defeated by diminutive gretchin left a dark stain on their honour. Squiggoths slew many battle-brothers during this conflict, and the gretchins cunning machines also wreaked havoc and took many lives. The little green monsters used the parts they scavenged for armour and new weaponry.