with joint forces of the United States, British, Canadian, and Dutch Navies and in Exercise "Canus Silex" with Canadian and United States Naval forces. In September, the submarine participated in Exercise "Master Stroke" and Exercise "Canus Slamex" with United States, Canadian, and British forces and returned to the Philadelphia Naval Shipyard on 2 November for a five-month overhaul. On 7 July 1965, Seal Owl put to sea for a four-month deployment to the Mediterranean and, after returning to New London, engaged in local exercises for the remainder of the year. Sea Owl spent 1966 providing services for the Submarine School and Operational Test and Evaluation Force in New London with time out for participation in Operation "Springboard" in the Caribbean. During 1967, she participated in various fleet and training exercises; and, on 22 May, deployed to northern European waters for a training and good will tour, returning in July. During a discharge physical examination, one of the crewman was discovered to have an active case of tuberculosis in an advanced stage. Due to the close environment and isolated atmosphere of the submarine, the crew was transferred to the United States Naval Hospital, St. Albans, N.Y., for three days of intensive tests. Following laboratory analysis, it was found that no other active cases existed, and the crew was returned to the submarine. Because of the unique living conditions of submarine life, Sea Owl served as a control group for clinical research for the Tuberculosis Service, Bureau of Medicine and Surgery. Operations for the year 1968 included various fleet exercises, including antisubmarine warfare operations with destroyer units and various NATO and United States ASW naval air squadrons. Training exercises included both officer submarine school and weekend reserve training cruises. Sea Owl participated in the U.S. Navy's search for the overdue and missing USS Scorpion. On 30 June 1969, Sea Owl was reclassified as an auxiliary submarine, AGSS-405. She departed New London on 7 July for her final deployment to the Mediterranean. Upon return, the submarine was ordered to commence preparations for deactivation. On 15 November, after more than 25 years of dedicated service, Sea Owl was decommissioned and struck from the Navy list. Sea Owl was sold for scrapping, 3 June 1971. Honors and awards Sea Owl received five battle stars for World War II. References External links www.USSSeaOwl.com Balao-class submarines World War II submarines of the United States Cold War submarines