The Imperial Fists Chapter.
The first and second artworks are of veteran battle-brothers of the Imperial Fists 1st and 3rd Companies respectively. The third artwork portrays the entire Imperial Fists hallowed 1st Company of veteran battle brothers.
The official homeworld of the Imperial Fists is Holy Terra, previously known as ‘Earth’, the most Holy and revered place in the Imperium and resting place of the Emperor of Mankind which they defended during the Horus Heresy. However in reality they are a fleet based Chapter since being reunited with their Primarch with the massive star fortress Phalanx serving as their mobile Fortress Monastery. The Imperial Fists are specialists in siege warfare and masters of defence and as such share an intense rivalry and hatred of the traitor Iron Warriors with whom they share this specialization.
The fourth and fifth artwork is of the Imperial Fists Primarch Rogal Dorn next to his honor guard battle brothers and the Imperial Fists Fortress-Monastery Phalanx.
Dorn was fiercely loyal to the Emperor and the Imperial Fists. He exemplifies the truth and could never tell a lie even if it could have aided him. He was known for his peerless devotion and military genius during the Great Crusade.
Rogal Dorn died on board a Chaos ship after attacking a Black Crusade fleet with a vastly outnumbered force, seeing the importance of attacking them as they were still preparing. He used hit and run attacks until reinforcements could arrive. Dorn died in a desperate attack on the bridge of the Despoiler Class Battleship Sword of Sacrilege. His remains were recovered and are in stasis aboard the Imperial Fists Fortress-Monastery Phalanx.