4 main country in World War 2?

Answer 1

Parts of China, Korea, Formosa (Taiwan), French Indo-China, British Malaysia, Dutch East Indies, Islands in the Marshalls, the Carolines, the Solomons, the Marianas, Indodnesia, Burma, the Philippines, and the borders of India (if not, parts of it). Plus parts of the state of Alaska (then a US territory).

Answer 2

This question was too vague for someone to answer. I am assuming you wanted to know who were the main countries in the European Theater of Operations. They were the USA, The United Kingdom, France and the Soviet Union.

In the Pacific Theater of Operations it was Australia, China, The USA and The United Kingdom.

Answer 3

The united states

And China (Manchuria).

Answer 4

Japan attacked Ethiopia and china