Luitenant-Admiraal Conrad Emil Lambert Helfrich, GNL, KCB (11 October 1886 – 20 September 1962) of the Royal Netherlands Navy was a leading Dutch naval figure of World War II. He was born in Semarang."In the early 1920s, when he was teaching other young sprouts at Den Helder, his favorite lecture was on the coming war between the U.S. and Japan.