Haha, it's a matter of opinion. But France in mine, because they not got taken over by the Germans and became Vichy France, but then also allied with the Germans when they saw that the take over was imminent. Then, when the US came to fight the German occupation, France switched sides yet again, allying with the US.
-Linds
Russia
Germany
Spain, Turkey, and Sweden
Russia .
Poland
Russia
They were defeated.
Switzerland
Germany
Japan .
usa
Germany
France
Great Britain
Antarctica was not involved in World War I, because there was no nation-state on the continent to become involved.
The nation of Poland did not actually exist during World War I. It was part of the Austria-Hungarian Empire of which Germany was a part.
Finland