The Ersalrope Wars were a series of conflicts that occurred prior to 2364.
The people of Minos gained fame as arms dealers during the Ersalrope Wars, manufacturing highly advanced weaponry for both sides of the conflict. (TNG: "The Arsenal of Freedom")
The Star Trek Encyclopedia (4th ed., vol. 1, p. 250) referred to this conflict as the "Erselrope Wars". The spelling used here came from the script.