The Bajoran system (also referred to as the Bajor system or the B'hava'el system) is a star system located in the Alpha Quadrant. The system contained fourteen planets, including the homeworld of the Bajorans, Bajor. The system was also the sight of the only known stable wormhole discovered by the Federation during the 24th century.
For forty years the system was occupied by the Cardassian Union after it annexed Bajor. In 2369, the occupation ended and the system regained its independence. The Federation was given a presence in the system after it was asked by the Bajoran government to administer the space station, Deep Space 9. (DS9: "Emissary")
The system was occupied by the Dominion for several months during the Dominion War after it drove Starfleet forces from the system. The Dominion was eventually driven from the system by Operation Return. (DS9: "Call to Arms", "Favors the Bold", "Sacrifice of Angles")