おう東亜 とうあ共栄 きょうえう けんでした
ōtōa kyō eukendeshita

Noun
Desu Copula

The polite past form of 大東亜共栄圏

1. Greater East Asia Co-Prosperity Sphere was. ; ; It was the Greater East Asia Co-Prosperity Sphere.

Past/Perfective
Polite