The Romulan Star Navy is the military space force of the Romulan Star Empire, a fictional civilization in the Star Trek universe. Known for their advanced technology and stealth capabilities, the Romulans often employ cloaking devices to hide their ships from enemy detection. Their fleet includes various classes of starships, such as the iconic Warbird. The Romulan Star Navy plays a significant role in the political and military conflicts within the Star Trek series. They are often portrayed as secretive and strategic, engaging in espionage and tactical maneuvers against other factions, including the United Federation of Planets.