World War II: The British submarine HMS Tradewind torpedoes Jun'yō Maru, killing 5,600, mostly slave labourers and POWs.

HMS Tradewind was a British submarine of the third group of the T class. She was built as P329 at Chatham, and launched on 11 December 1942. As of 2021 she is the only ship of the Royal Navy to have been named Tradewind, after the trade winds.

Jun'yō Maru (順陽丸) was a cargo steamship that was built in Scotland in 1913, served a succession of British owners until 1927, and was then in Japanese ownership until a Royal Navy submarine sank her in 1944.