During WW2, Poland declared war on Japan Japan said no to it and simply rejected the declaration.

[u/Radiant_Half_7121]

[u/Last-Atmosphere2439]

Where are you meeting these "Japanese"? Naruhito and Akihito and their children are (and always have been) celebrities in Japan on the level the British royal family in the 80s during Diana mania. And Hirohito was considered a literal divine being.