mistakenly sank the Soviet merchant ship at {[coord|45|44|N|140|48|E}} in a friendly fire incident. On 14 June, she sank the passenger-cargo ship Seizan Maru; and, in a night attack on 17 June, she sank the C.M. minelayer Eijō Maru. She then rejoined the other submarines and exited the Sea of Japan, returning to Pearl Harbor on 4 July 1945. Spadefish was preparing for another war patrol when hostilities with Japan ended on 15 August 1945 (14 August across the International Date Line in Hawaii. Post-World War II Spadefish remained at Pearl Harbor until 2 September 1945 and then set course for Mare Island Naval Shipyard where she was decommissioned on 3 May 1946 and placed in reserve. She was reclassified an auxiliary submarine, AGSS-411, on 6 November 1962, struck from the Navy List on 1 April 1967, and sold for scrap in 1969. Honors and awards Spadefish (SS-411) received four battle stars for World War II service. In popular culture Spadefish is one of several submarines along with the era's , , , and whose war patrols can be re-enacted in the 1985 MicroProse computer game Silent Service and the game's various ports, including Konami's 1989 release for the Nintendo Entertainment System. In 2008, Spadefish'''s ship's flag and ship's wheel were appraised in Grand Rapids, Michigan, for an episode of the American television series Antiques Roadshow. See also Gordon Waite Underwood, commanding officer for Spadefish'''s first three war patrols List of most successful American submarines in World War II 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 1944 ships Balao-class submarines Ships built in Vallejo, California World War II submarines of the United States Maritime incidents in January 1945 Maritime incidents in March 1945 Maritime incidents in June 1945 Friendly fire incidents of World War II