The Breen Confederacy was the official government of the Breen species. This confederacy was located in the Alpha Quadrant. In the First War, the Breen Confederacy entered the War in the Beta Quadrant, allowing itself to be annexed by the Coalition of Independent States during the War in the Beta Quadrant. According to the terms of the annexation, the Breen Confederacy received several planets from the Cardassian Union as compensation for joining the war. The Breen would also be given control of the Romulan Star Empire in the post-war galaxy. The Founders also promised the Breen control of Earth, though Weyoun was also given this assurance. The union was negotiated between the Female Changeling and Thot Gor, a prominent official in the Confederacy.