Original: Nana Visitor Kira Nerys First Officer Seasons 1-7 Bajoran Major (Seasons 1-6),briefly Commander (Season 7)Colonel (Season 7) Kira Nerys is a Bajoran militia officer, former guerrilla fighter during the Cardassian Occupation of Bajor, and, as the station's Bajoran liaison officer, Sisko's second in command.
Simplified: Kira Nerys (Nana Visitor) - Alien (Bajoran) military officer, second in command of Deep Space Nine.