The Romulan Empire is a fictional interstellar state in the Star Trek universe, known for its secrecy and military prowess. It is primarily inhabited by the Romulans, a humanoid species characterized by their pointed ears and distinctive forehead ridges. The empire is often depicted as a rival to the United Federation of Planets, engaging in espionage and political intrigue. The Romulan Empire is governed by a Senate and is known for its strict control over its citizens. Its military, the Romulan Star Navy, plays a crucial role in protecting the empire's interests. The empire's advanced technology includes the iconic Romulan Warbird starships, which are equipped with cloaking devices for stealth operations.