The Vela Expanse was a region of space located in the Beta Quadrant. Part of the Expanse lay within the Romulan Star Empire, while the majority was unclaimed territory between the Romulan and Klingon Empires and the United Federation of Planets. (Last Unicorn Games RPG: The Way of D'Era: The Romulan Star Empire) In 2366, the D'narex Tomair was sent by the Romulan Star Navy to survey the expanse. (Ship Recognition Manual, Volume 5: Starships of the Romulan Star Empire)