Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. HMS Strongbow was an S class submarine of the Royal Navy, and part of the Third Group built of that class. She was built by Scotts, of Greenock and launched on August 30, 1943. She served in the Second World War, spending most of it in the Pacific Far East, where she sank the small Japanese army cargo ship Toso Maru No.1, the Japanese merchant cargo ship Manryo Maru, four Japanese sailing vessels, a Japanese tug and a Japanese barge, three small unidentified Japanese vessels, three Siamese sailing vessels and six other small Siamese / Japanese vessels.