Prince Kan'in Kotohito Hajime Sugiyama
Nonetheless, according to Herbert Bix, Hirohito's main concern seems to have been the possibility of an attack by the Soviet Union in the north given his questions to his chief of staff, Prince Kan'in Kotohito, and army minister, Hajime Sugiyama, about the time it could take to crush Chinese resistance and how could they prepare for the eventuality of a Soviet incursion. Based on Bix's findings, Hirohito was displeased by Prince Kan'in's evasive responses about the substance of such contingency plans but nevertheless still approved the decision to move troops to North China.
