About Isoroku Yamamoto
Isoroku Yamamoto (山本 五十六, Yamamoto Isoroku; April 4, 1884 – April 18, 1943) was an admiral of the Imperial Japanese Navy (IJN) and the commander of the Combined Fleet during World War II. He commanded the fleet from 1939 until his death in 1943, overseeing the start of the Pacific War in 1941 and Japan's initial successes and defeats before his plane was shot down by U.S. fighter aircraft over New Guinea. Yamamoto graduated from the Imperial Naval Academy in 1904 and served in the Russo-Japanese War, where he lost two fingers at the Battle of Tsushima. He later studied at Harvard University in the United States and was appointed naval attaché to the Japanese embassy in Washington. His experiences convinced him that naval power depended on access to oil and industrial capacity, and that Japan thus had little hope to defeat the U.S. in a war. He was one of the first naval leaders to conclude that naval aviation and aircraft carriers would play a decisive role in any future conflict. In 1936, Yamamoto was appointed navy vice minister, and opposed Japan's alliance with Germany and Italy in the Tripartite Pact of 1940. In 1939, he was appointed commander-in-chief of the Combined Fleet, and was tasked with creating a strategy for war with the United States; Yamamoto favored a surprise attack, which was carried out at the start of the war with an attack on Pearl Harbor in December 1941. In the early months of the war, the Japanese fleet scored a series of decisive naval victories. These gains were halted at the Battle of Midway in June 1942, in which four Japanese carriers were sunk. Yamamoto committed to the defense of the Solomon Islands in the Guadalcanal campaign, but was unable to prevent their capture. In April 1943, Yamamoto was killed after American code breakers intercepted his flight plans, enabling the United States Army Air Forces to shoot down his aircraft. Yamamoto was a strong proponent of naval aviation and served as head of the Aeronautics Department, before accepting a post as commander of the First Carrier Division. With Tojo now in charge of Japan's highest political office, it became clear the Army would lead the Navy into a war about which Yamamoto had serious reservations.
Biography source: Wikipedia. The profile adds birthday-specific historical context from the Celebs Birthday Today editorial database.