Imperial Japan helped Finland decrypt Soviet military codes in its war on the Soviets
Imperial Japan helped Finland decrypt Soviet military codes in its war on the Soviets
Hirose sent the important information collected by the Finns to Tokyo and in turn received from the Kwangtung Army information gathered along the Manchurian-Soviet border. Thanks to this cooperation, the decryption of the codes of the Soviet ground force and the border guards progressed satisfactorily, and must have been of some use when the Finnish General Staff planned military operations against the Red Army.