The Japanese altered their pre-war message codes after the Coral Sea (6 May 1942), and a few weeks before the Aleutians and Midway ( June 1942). The changes were enough to send US Naval Intelligence in Honolulu scrambling.
The Secret Service brought in a well-known Southern Baptist missionary who had recently arrived in Hawaii after being booted out of Japan along with the other undesirable westerners. Reverend Edwin Burke Dozier, who became part of the Olivet Baptist Church in Honolulu, was the son of S.B.C. missionaries from Georgia. He had been born and raised in Japan – the Nagasaki-Fukuoka area of Kyushu’s west coast.
Rev. Dozier’s masterful ear for the Japanese language discerned that the enemy was using Japanese baby-talk in the key parts of their altered code. These were not words found in any dictionary and a person would have had to…
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