The Cha'ouw Empire, Chalchaj 'qmey in the Klingon Language, was a sovereign political, economic, military and social entity located in known space between the borders of the United Federation of Planets, the Klingon Empire and the Romulan Empire. It shares close ties with the Klingon Empire, being recognized by the Klingon High Council after the Battle of the Illinois Sector and has been accepted as a member of the United Federation of Planets. The UFP maintains this alliance with the presence of a Federation Starbase, Starbase 12, on the border between Cha'ouw and Federation space. (Star Trek: Black Hawk)