In World War II, Japan proposed the action of the Great East Asia Co-prosperity Sphere, marched into Southeast Asia which was the colony of powerful countries such as England and the Netherlands, cast out the Occupation Forces of Europe and America and took their places, occupying or putting under their influence almost the whole area.
さらに、第二次世界大戦においては大東亜共栄圏の行動を打ち出し、当時イギリスやオランダなどの列強が植民地化していた東南アジアに進軍し、欧米の占領軍を追い出して後釜に座る形でほぼ全域を占領、あるいは影響下に置いた。