there for a month, then headed for Guam, arriving 5 June. Next day she sailed on a special mission of lifeguarding for a British carrier strike force and for B-24 and B-29 bombers striking the Japanese homeland. Returning to Guam 20 June, she headed for Saipan 4 days later to join submarines for a picket boat sweep ahead of Admiral Halsey’s forces which were to attack Tokyo area targets. Upon completion of sweeps, Lapon went on lifeguard duty off Tori Shima until 7 July when she steamed for Midway Atoll, briefly stopping at Saipan for temporary repairs, mooring 23 July. The day she was to sail for another war patrol, hostilities ended. Instead, Lapon departed for the Atlantic coast 26 August and arrived at New Orleans, Louisiana, 20 September 1945. She remained there until she departed 24 October for the Texas coast, arriving Galveston 25 October. Two days later she berthed at Houston. Lapon got underway for Staten Island, New York on 30 October, arriving 4 November. She remained at New York until 8 January 1946, when she sailed for New London, arriving the same day. Lapon was placed out of commission in reserve 25 July 1946. Greek service Recommissioned at Portsmouth Naval Shipyard, 13 April 1957, Lapon remained in the Portsmouth vicinity until 10 August, when she was decommissioned and struck from the Navy list. On 8 August 1957 she was transferred to Greece by Captain Samuel Francis under the Military Assistance Program and served the Greek Navy as Poseidon (S-78) (originally carrying pennant number Y-16). Poseidon was purchased outright by Greece in April 1976 and stricken from active duty for use as spare parts for sister ships. SS-260 was stricken from the US Navy Register on 31 December 1975. Honors and awards Navy Unit Commendation Asiatic-Pacific Campaign Medal with four battle stars for World War II service Lapon was credited with sinking 53,443 tons of Japanese shipping. She was awarded the Navy Unit Commendation for her brilliantly successful third, fourth, fifth, and sixth patrols. References 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 navsource.org: USS Lapon USS Lapon website Gato-class submarines Ships built in Groton, Connecticut 1942 ships World War II submarines of the United States Cold War submarines of the United States Gato-class submarines