Isle from 1960 to 1967, replacing . Cero was in turn replaced by Cero was sold for scrap in 1970. Honors and awards Asiatic-Pacific Campaign Medal with seven battle stars for World War II service Of Cero''′s eight war patrols, all but the second were designated as "successful." She is credited with having sunk a total of 18,159 tons of shipping. References Citations Bibliography Hinman, Charles R., and Douglas E. Campbell. The Submarine Has No Friends: Friendly Fire Incidents Involving U.S. Submarines During World War II. Syneca Research Group, Inc., 2019. . External links history.navy.mil: USS Cero hazegray.org: USS Cero navsource.org: USS Cero Reserve Training Boats: USS Cero Gato-class submarines World War II submarines of the United States Cold War submarines of the United States Ships built in Groton, Connecticut 1943 ships Maritime incidents in April 1944 Friendly fire incidents of World War II