RN Submarines - May 15th

1943	Verve	Submarine HMS Verve laid down
1918	L5	Submarine HMS L5 completed
1919	L18	Submarine HMS L18 completed
1933	Clyde	Submarine HMS Clyde laid down
1944	Upshot	Submarine HMS Upshot completed
1960	Otter	Submarine HMS Otter launched
1968	Courageous	Submarine HMS Courageous laid down
1943	HMS Sickle	HMS Sickle torpedoes and sinks the German auxiliary submarine chaser UJ-2213/Heureux south of Nice, southern France.
1943	HMS Rorqual	HMS Rorqual lays 50 mines off Punta Stilo, Calabria, Italy.
1944	HMS Ultor	HMS Ultor attacks and damages a French fishing vessel with gunfire off Cape Camarat, southern France.
1945	HMS Statesman	HMS Statesman sinks a Japanese coaster with gunfire in the Strait of Malacca.
1945	HMS Tiptoe	HMS Tiptoe sinks a Japanese coaster with gunfire of Sumbawa Island, Netherlands East Indies.
1945	Clyde	HMS Clyde sinks a Japanese sailing vessel with gunfire of the west coast of Siam.

Thanks to - Barrow Submarine Association