In the First World War, Great Britain, France, and Russia fought against Germany. Germany was part of an alliance called the Central Powers.
The name given to the countries fighting against Germany was Allies. This name was given to this group in both World Wars.
The Allied Powers
allies
Entente Powers
BritainFranceRussiaItalyU.S
The USSR and Britain were fighting against Germany in 1942
The US, England, and Russia were known as the allied countries and fought against Germany and Italy who were known as axis countries in World War II
Both Germany and Japan fought against the US in WW2.Both Germany and Japan fought against the US in WW2.
great britain, france, and russia.
Germany
it's not as if the war was voted for, to be honest. however, if what you mean by 'against' is 'didn't start it', I'll say everyone but Germany, Italy and japan at a guess.
Germany is the only country in Europe of which Germany is a part.