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Arthur Komori, Richard Sakakida, and Clarence Yamagata were recruited by Corps of Intelligence to serve as U.S. Army undercover agents spying on the Japanese community in the Philippines.
War Department reluctantly opens a secret language school at Crissy Field under the 4th Army at the Presidio of San Francisco, with four Nisei instructors and 60 students, 58 of which are Nisei. This was the first class of the Military Intelligence Language School.
Military Intelligence Service (MIS)
Japan bombs the U.S. naval base at Pearl Harbor. FBI agents and police begin arresting Japanese American community leaders in Hawaii and the mainland.
Bombing of Pearl Harbor
December 7, 1941
The newly federalized Hawaii Territorial Guard (HTG), made up of ROTC cadets and volunteers from Honolulu high schools, the majority Nisei, is placed under direct Army command.