In 2373, Brilgar was assigned to protect Kira Nerys after Silaran Prin began killing former members of the Shakaar resistance cell. While protecting Kira, he was accidentally attacked by Furel and Lupaza, believing him to be an intruder.
Brilgar was later unsuccessful in stopping Kira from trying to enter the O'Brien's quarters, that had been destroyed by a hunter probe. However, Kira collapsed before she could open the door. (DS9: "The Darkness and the Light")