noun
imperialization policy; policy of imperialization
Historical term referring to Japan's policy of assimilating colonial subjects, especially in Korea, into imperial subjects during the colonial period.
皇民化政策の一環として、朝鮮では日本語の使用が強制された。
As part of the imperialization policy, the use of Japanese was enforced in Korea.
Compound of 皇民 (imperial subject) + 化 (-ization) + 政策 (policy). The term is historically associated with Japan's colonial rule over Korea.