Luitenant-Admiraal Conrad Emil Lambert Helfrich, GNL, KCB (October 11, 1886 – September 20, 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. "When?" his students would ask him, and he would boom: "In this generation." Then he would stride to a blackboard map and chalk three Xs— on Pearl Harbor, the Panama Canal, San Francisco. 'There,' he would say, 'the attacks will fall.' "