These missions may be diplomatic or defensive, particularly in connection with the hostile races, the [[Extraterrestrial life in Star Trek#Klingon|Klingon]]s and the [[Extraterrestrial life in Star Trek#Romulan|Romulan]]s. | These missions may be diplomatic or defensive, particularly in connection with the hostile races, the [[Extraterrestrial life in Star Trek#Klingon|Klingon]]s and the [[Extraterrestrial life in Star Trek#Romulan|Romulan]]s. |