The Holy Raalgon Empire (神聖ラアルゴン帝国 Shinsei Raarugon Teikoku?), sometimes just Raalgon Empire, is a faction that appears in The Irresponsible Captain Tylor television series. The predominant species of the Empire are the Raalgon. They're one of the two major powers in the galaxy, the other being the United Planets Space Force.
The Holy Raalgon Empire is a monarchy ruled by an Emperor/Empress, their family and a Prime Minister. It is unknown how the office of Prime Minister is determined.
The tensions between them and the UPSF had been building for years. (Tylor: "The Mysterious Irresponsible Man")