The Adeptus Astartes, commonly known as the Space Marines, are elite super-soldiers in the Warhammer 40,000 universe. They are genetically enhanced warriors created by the Emperor of Mankind to protect humanity from various threats, including aliens, heretics, and chaos. Each Space Marine belongs to a specific chapter, which has its own traditions, tactics, and colors. Space Marines are equipped with advanced power armor and a variety of weapons, making them formidable on the battlefield. They undergo rigorous training and conditioning, allowing them to perform extraordinary feats of strength and resilience. Their primary mission is to uphold the Imperium of Man and ensure the survival of humanity.