HMCS Grilse was a submarine of the Royal Canadian Navy that served during World War II. Commissioned in 1942, it was one of the six Grilse-class submarines built for the Canadian Navy. The submarine had a distinguished service record, conducting patrols in the North Atlantic and engaging in anti-submarine warfare operations. In 1944, HMCS Grilse was transferred to the Royal Navy and operated in the Mediterranean Sea. The submarine was involved in various missions, including intelligence-gathering and supporting Allied forces. After the war, HMCS Grilse was decommissioned in 1945 and sold for scrap in 1947. The submarine's service history highlights its contribution to Canada's naval efforts during WWII and its role in supporting Allied operations in the Atlantic and Mediterranean theaters.

This description has been generated using GPT-3.5-TURBO based on the Vessel's wikidata information and then modified by ShipIndex.org staff.