There were not only two countries.
Most Asian countries were involved in World War 2
The Soviet Union and the United States .
The First two were Germany and Poland
== == Of the 7 continents, only Antarctica was NOT involved in fighting in WW2. I'm sure what you meant to say was................What countries, on what continents, were involved in World War Two?
yes
The Allies and the Entente.
spain, switzerland, sweden, vatican city, ireland,
Because most of the major countries of the world were involved in the fighting.
World War I was also called 'The Great War'. It was given that name because it involved all of the world's great powers or most influential and important countries.
Switzerland, Turkey, Portugal, Sweden, and Spain were neutral countries in World War 2.
Athens and Sparta