East Asia
The Orient
noun
East Asia is East Asia! That's where Japan is!
とうあ
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
太平洋戦争のことを、大東亜戦争と呼ぶのは何故ですか。
Why is the Pacific War called The Greater East Asian War?