The Sith Empire was a Sith government formed by the Sith Emperor after the fall of Naga Sadow's Sith Empire. It was created in Outer Rim Territories, on the planet of Dromund Kaas, where the remnants of the original Sith rebuilt their civilization. The Empire waged a galaxy-wide war with the Galactic Republic, which ended with over half of the galaxy being conquered by the Sith. It had a military, composed of an army and navy, and intelligence service.