The Sour Rivalry

America's miraculous victory over Japan in the Pacific Theater of World War 2 would not have been possible if not for the sour rivalry between the Imperial Japanese Army and the Imperial Japanese Navy. This toxic inter-service rivalry within the Japanese camp allowed America and Britain to pick up the pieces after a string of defeats and hit back with a vengeance. Even after Japan surrendered, the insane rivalry between the Imperial Japanese Army and the Imperial Japanese Navy continued until the Allies ordered both of them to be disbanded altogether.

In conclusion, do not trust World War 2 Daisenryaku games where you fight as the Empire of Japan against the Allies because the Daisenryaku series does not take into account the leadership dysfunction of any faction.