Romulan Republic (mirror)

In the mirror universe, the Romulan Republic is an interstellar state government composed of member planets, colonies, and other outposts. The Romulan Republic is quite similar to the counterpart universe's Romulan Star Empire in that it consists mostly of Romulan citizens with similar Romulan starships as the Romulan Star Navy in about the same area of space. 

Mirror Universe Saga
In a version of alternate universe history where Admiral James T. Kirk took the USS Excelsior (NX-2000) to the mirror universe and pretended to be his counterpart, members of his crew contacted the mirror Romulan government in 2285 in order to enlist their help in fighting back the Terran Empire, which was preparing for an invasion of the counterpart universe.

The Romulans' conflict with the Terrans was long-standing, as the mirror Romulans had also engaged in a 22nd century Earth-Romulan War against Earth, in which the Romulans had briefly established a beachhead on Earth and enslaved Terrans. The Terrans were able to overthrow the Romulan rule and fight them out of their space, establishing the strong interstellar Terran Empire seen in the 23rd century. 


 * While depicted, the government was not named in The Mirror Universe Saga.

Shattered Universe
The Romulan Republic sent several vessels to investigate the ISS's incursion into Romulan space in the 2290s, engaging the starships fighters before entering into a truce with the vessel's commanding officer, Captain Hikaru Sulu, who had been transported into his mirror counterpart's place aboard that vessel. 

Republic starships

 * : RSE • RSE • RSE
 * : RSE • RSE
 * : RSE • RSE
 * fighters : • Shrike-class fighter •