The Imperium of Man is a fictional empire in the universe of the tabletop game and media franchise, Warhammer 40,000. It represents a vast, dystopian human civilization that spans the galaxy, characterized by its authoritarian rule and a strong belief in the divine nature of humanity. The Imperium is governed by the God-Emperor of Mankind, who is both a political and religious figure, revered as a god by its citizens. The Imperium is known for its militaristic society, with the Adeptus Mechanicus and the Imperial Guard being key military organizations. It faces constant threats from various alien races, heretics, and supernatural entities, leading to a culture of war and sacrifice. The Imperium's motto, "In the Emperor's name," reflects its commitment to preserving humanity against all odds.