USS Iblis (NCC-528) was a Saladin-class destroyer — of the Siva-subclass — on active duty in Starfleet during at least the 23rd century. (Star Fleet Technical Manual) Iblis was destroyed during Operation Blackjack in 2289. (Star Trek: Shadowstar Station: Operation Blackjack) One of the officers aboard at its destruction was its chief navigation officer, Waldemar Benteen, father of Gretchen Benteen. (Star Trek: Avenger: Nearly a Valediction)