Japan is clearly NO Western country. "Western" means the opposite from "Eastern", which in turn refers to the Asian countries (Japan, China etc.).
"Western" refers to populations from the northern half of the Eurasian continent, and to North-American populations.
"Eastern" refers to populations from the Asian contries (southern half of the Eurasian continent).
Populations from Africa and South-America are neither Western nor Eastern, but Southern populations (more frequently also called "3rd-world-countries").
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