June 1943. She was at Bermuda from July to December 1943. From January through March 1944, she was back in southern New England. In April 1944 she moved south for eight months at Key West, and Port Everglades, Florida. In 1945, R-18 again began operations from New London. During the summer of 1945 she made her last voyage to Florida and back and in September 1945 she headed for New Hampshire and inactivation. R-18 arrived at Portsmouth, New Hampshire, on 7 September 1945 and was decommissioned on 19 September 1945. Struck from the Naval Vessel Register in October 1945, she was sold for scrapping to the John J. Duane Company of Quincy, Massachusetts, in 1946. References Footnotes 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 R-18 (SS-95) World War I submarines of the United States World War II submarines of the United States Ships built in San Francisco 1918 ships Maritime incidents in May 1942 Friendly fire incidents of World War II