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The world wonders
"The world wonders" was a phrase used as security padding in an encrypted message sent from Admiral Chester Nimitz to Admiral William Halsey, Jr. on October 25, 1944 during the Battle of Leyte Gulf. The words, intended to be without meaning, were added to hinder Japanese attempts at cryptanalysis, but were mistakenly included in the decoded message given to Halsey and interpreted by him as a harsh and sarcastic rebuke. As a consequence, Halsey dropped his pursuit of a Japanese carrier task force in a futile attempt to aid United States forces in the Battle off Samar.
==Background==
(詳細はisland of Leyte as part of a strategy aimed at isolating Japan from the countries it had occupied in South East Asia, and in particular depriving its forces and industry of vital oil supplies. The Imperial Japanese Navy (IJN) mobilized nearly all of its remaining major naval vessels in an attempt to defeat the Allied invasion. In the ensuing Battle of Leyte Gulf the Japanese intended to use ships commanded by Vice-Admiral Jisaburō Ozawa, "Northern Force", to lure the main American covering forces away from Leyte, thus allowing the main IJN forces, "Southern Force" and "Center Force", to attack the invasion force in a pincer movement. Northern Force would be built around several aircraft carriers, but these would have very few aircraft or trained aircrew, and was in reality little more than "bait".〔〔
Halsey, in command of the naval forces covering the invasion, fell for the ruse, and convinced that Northern Force constituted the main Japanese threat, proceeded northward in pursuit with the carriers of 3rd Fleet and a powerful force of battleships, designated Task Force 34. This left the landing beaches covered only by sixteen escort carriers with about 450 aircraft from the 7th Fleet . . On the morning of the 25th a strong Japanese force of battleships slipped through the San Bernardino Strait headed toward the American landing forces, prompting their commander, Admiral Thomas C. Kinkaid, to send a desperate plaintext message asking for support.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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