H-018-2 Yamamoto Shot Down

And...

"On 14 April 1943, multiple U.S. radio-intercept sites copied a Japanese naval message encoded in the JN-25D cipher. U.S. Navy code breakers in Washington, DC, and at Fleet Radio Unit Pacific at Pearl Harbor (also known as Station Hypo, but by then more frequently referred to as “FRUPAC”) immediately set to work trying to break the message. The already difficult process was compounded further because the Japanese had made some changes following the sinking of the Japanese submarine I-1 in shallow water off Guadalcanal by the New Zealand navy corvette Moa in late January (although at the same time, captured material brought up by U.S. Navy divers from the submarine proved very beneficial in other code-breaking efforts). At this time, FRUPAC was under the direction of Commander William B. Goggins. Goggins had no intelligence or code-breaking background, but proved to be an able officer and leader who gained the trust of the FRUPAC code breakers following the recall of the popular (and hero of the Battle of Midway) Commander Joe Rochefort in October 1942 as a result of a sordid power struggle with OP-20G in Washington, DC. Rochefort’s reward for FRUPAC/Hypo’s success in breaking the Japanese naval code before Midway was to be given command of a floating drydock. Goggins had been severely wounded as executive officer of the light cruiser USS Marblehead (CL-12) in a Japanese bombing raid off Java in February 1942; the story of how he successfully escaped from Java just ahead of the Japanese occupation is an epic story in itself."...