Bokara VI is a planet near Federation space. In 2369 it was the site of a conference on neuro-psychology that was attended by Counselor Deanna Troi.
While at the conference, Troi was abducted by members of the Romulan underground movement and surgically altered to take the place of Tal Shiar Major Rakal in order to help with the defection of M'ret, a high ranking member of the Romulan Senate. (TNG: "Face of the Enemy")
This planet's name appears as "Borka VI" in some sources including the DVD subtitles and the startrek.com website. However, the shooting script gives the planet name as "Bokara VI", under which name it is entered here.