The Romulan Star Navy, also known as the Romulan Imperial Fleet and commonly referred to as Imperial armada or space fleet was the space force of the Romulan Star Empire. The Star Navy operated fleets of warbirds, birds-of-prey and other starships and was often at the forefront of the Star Empire's contacts with the Klingon Empire, United Federation of Planets and other external affairs. (TLE novel: Serpents Among the Ruins, et al.)