Lt. Col. Masataka Ida (井田正孝, Ida Masataka) (5 October 1912 – 6 February 2004) was a young Lieutenant Colonel in the Military Affairs Section of the Japanese Ministry of War, at the end of World War II. He had been stationed on Formosa (Taiwan), but was ordered back to Tokyo early in 1945. Along with Major Kenji Hatanaka and a few others, he was one of the chief conspirators in a plot to overthrow the government of Prime Minister Kantarō Suzuki; they wished to see the institution of martial law under War Minister Korechika Anami. The plan changed, however, into a plot, engineered by Major Kenji Hatanaka, to seize the Imperial Palace and prevent the broadcast of the Emperor's surrender speech. Lt. Col. Ida took part in this plot only briefly, trying to talk Hatanaka out of it by the end. Not many know about his attempted 'coup', which, although it failed, came dangerously close to lengthening the war, and altering the face of modern history.