Also the Australian come into mind, the played a big role in defeating the Italian and German in North-Africa.
And the Canadian played a big role in freeing the Netherlands. I know, it's a small country, but in Dutch WWII-history they played a big role when it came to freeing the country.
>Can anyone comment on the involvement of European nations
>in the US's campaign against Japan?
Sorry, I can't. But I can imagine that the European had other things to think of. And since the Germans had captured almost whole of Europe, I can also imagine that Europe had little or even none military power to help the US.
>Africans fighting Hitler ?????