The Imperial Guard, officially known as the Astra Militarum, is the primary ground force of the Imperium of Man in the Warhammer 40,000 universe. Composed of millions of soldiers, the Imperial Guard is known for its vast numbers and reliance on conventional military tactics, heavy armor, and artillery. They are often seen as the first line of defense against various threats, including alien races and chaotic entities. Soldiers in the Imperial Guard come from countless planets, each contributing unique regiments with distinct specialties and traditions. Despite being human and often outmatched by more powerful foes, their discipline, training, and sheer numbers make them a formidable force in the galaxy.