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X-WR-CALDESC:13 April 1943: FRUPAC intercepted encoded itinerary of Admiral
Yamamoto's upcoming tour of the Solomon Islands. OP-20-G\, FRUPAC\, and F
RUMEL exchanged information to help decrypt the messages. This work enable
d the shootdown of Admiral Yamamoto five days later. Photo: FRUPAC workin
g on JN-25.\n\n“On April 13\, 1943\, Allied radio intelligence intercepted
a message carrying the travel itinerary of Admiral Yamamoto. The detail i
n the message listed flight and ground schedules and included what type of
fighter escort would be provided. Major Red Lasswell of FRUPAC broke the
coded message. The decision of what to do with the information was left to
Admiral Nimitz. Nimitz consulted Layton as to what the ramifications woul
d be if Yamamoto were removed. They considered that he might be replaced w
ith a better commander\, and Nimitz felt familiar with Yamamoto as his opp
onent. Layton felt nobody could adequately replace Yamamoto\, and based on
this opinion Nimitz gave Admiral Halsey the authority to carry out the in
tercept of Yamamoto’s aircraft. On 18 April\, a flight of P-38 fighters wi
th specially selected pilots and equipped with long-range fuel tanks shot
down Yamamoto’s aircraft\, killing one of Japan’s top naval leaders.”
Ricky J. Nussio\, in Sherman and Nimitz: Executing Modern Information Oper
ations (2001)
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X-WR-TIMEZONE:America/New_York
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TZNAME:EST
DTSTART:20201101T020000
TZOFFSETFROM:-0400
TZOFFSETTO:-0500
RDATE:20211107T020000
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DTSTART:20210314T020000
TZOFFSETFROM:-0500
TZOFFSETTO:-0400
RDATE:20220313T020000
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BEGIN:VEVENT
UID:41d22c6e-4972-423e-b954-8b5ae9994106
DTSTAMP:20240329T152331Z
DESCRIPTION:13 April 1943: FRUPAC intercepted encoded itinerary of Admiral
Yamamoto's upcoming tour of the Solomon Islands. OP-20-G\, FRUPAC\, and FR
UMEL exchanged information to help decrypt the messages. This work enabled
the shootdown of Admiral Yamamoto five days later. Photo: FRUPAC working
on JN-25.\n\n“On April 13\, 1943\, Allied radio intelligence intercepted
a message carrying the travel itinerary of Admiral Yamamoto. The detail in
the message listed flight and ground schedules and included what type of
fighter escort would be provided. Major Red Lasswell of FRUPAC broke the c
oded message. The decision of what to do with the information was left to
Admiral Nimitz. Nimitz consulted Layton as to what the ramifications would
be if Yamamoto were removed. They considered that he might be replaced wi
th a better commander\, and Nimitz felt familiar with Yamamoto as his oppo
nent. Layton felt nobody could adequately replace Yamamoto\, and based on
this opinion Nimitz gave Admiral Halsey the authority to carry out the int
ercept of Yamamoto’s aircraft. On 18 April\, a flight of P-38 fighters wit
h specially selected pilots and equipped with long-range fuel tanks shot d
own Yamamoto’s aircraft\, killing one of Japan’s top naval leaders.” R
icky J. Nussio\, in Sherman and Nimitz: Executing Modern Information Opera
tions (2001)
DTSTART;TZID=America/New_York:20210413T000000
DTEND;TZID=America/New_York:20210413T235900
LOCATION:
SUMMARY:1943: FRUPAC Intercepted Yamamoto's Encoded Itinerary.
END:VEVENT
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