The Sisters of Battle, also known as the Adepta Sororitas, are an all-female military order in the Warhammer 40,000 universe. They serve the Imperium of Man and are dedicated to the worship of the God-Emperor. Trained as elite warriors, they fight against heresy and protect humanity from various threats, including aliens and chaos. Equipped with advanced weaponry and powered armor, the Sisters are known for their unwavering faith and combat prowess. They often operate independently or alongside the Imperial Guard and other forces of the Imperium, embodying the ideals of sacrifice and devotion in their relentless battles.